JACOBS SOLUTIONS INC., 10-Q filed on 2/3/2026
Quarterly Report
v3.25.4
Cover Page - shares
 3 Months Ended
Dec. 26, 2025
Jan. 23, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Dec. 26, 2025  
Document Transition Report false  
Entity File Number 1-7463  
Entity Registrant Name JACOBS SOLUTIONS INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 88-1121891  
Entity Address, Address Line One 1999 Bryan Street  
Entity Address, Address Line Two Suite 3500  
Entity Address, City or Town Dallas  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 75201  
City Area Code 214  
Local Phone Number 583 – 8500  
Title of 12(b) Security Common Stock  
Trading Symbol J  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   117,446,713
Entity Central Index Key 0000052988  
Current Fiscal Year End Date --09-25  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
v3.25.4
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 26, 2025
Sep. 26, 2025
Current Assets:    
Cash and cash equivalents $ 1,552,913 $ 1,235,448
Receivables and contract assets 3,059,769 2,989,067
Prepaid expenses and other 144,016 134,804
Total current assets 4,756,698 4,359,319
Property, Equipment and Improvements, net 307,202 311,872
Other Noncurrent Assets:    
Goodwill 4,793,637 4,780,818
Intangibles, net 683,648 717,670
Deferred income tax assets 315,480 325,814
Operating lease right-of-use assets 297,701 289,101
Miscellaneous 460,129 467,941
Total other noncurrent assets 6,550,595 6,581,344
Assets 11,614,495 11,252,535
Current Liabilities:    
Accounts payable 1,262,870 1,261,489
Accrued liabilities 1,042,175 1,037,754
Operating lease liabilities 111,703 111,040
Contract liabilities 1,160,967 940,616
Total current liabilities 3,577,715 3,350,899
Long-term debt 2,486,022 2,236,456
Liabilities relating to defined benefit pension and retirement plans 269,908 272,069
Deferred income tax liabilities 147,603 151,821
Long-term operating lease liabilities 361,913 362,361
Other deferred liabilities 230,123 212,330
Total other noncurrent liabilities 3,495,569 3,235,037
Commitments and Contingencies
Redeemable Noncontrolling interests 1,092,980 1,018,694
Capital stock:    
Preferred stock, $1 par value, authorized - 1,000,000 shares; issued and outstanding - none 0 0
Common stock, $1 par value, authorized - 240,000,000 shares; issued and outstanding - 117,586,748 shares and 119,081,294 shares as of December 26, 2025 and September 26, 2025, respectively 117,587 119,081
Additional paid-in capital 2,678,370 2,706,376
Retained earnings 1,334,005 1,525,760
Accumulated other comprehensive loss (686,062) (710,410)
Total Jacobs stockholders’ equity 3,443,900 3,640,807
Noncontrolling interests 4,331 7,098
Total Group stockholders’ equity 3,448,231 3,647,905
Total liabilities and equity $ 11,614,495 $ 11,252,535
v3.25.4
CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 26, 2025
Sep. 26, 2025
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 1 $ 1
Preferred stock, authorized (in shares) 1,000,000 1,000,000
Preferred stock, issued (in shares) 0 0
Preferred stock, outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, authorized (in shares) 240,000,000 240,000,000
Common stock, issued (in shares) 117,586,748 119,081,294
Common stock, outstanding (in shares) 117,586,748 119,081,294
v3.25.4
CONSOLIDATED STATEMENTS OF EARNINGS - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Income Statement [Abstract]    
Revenues $ 3,293,281 $ 2,932,956
Direct cost of contracts (2,528,031) (2,211,689)
Gross profit 765,250 721,267
Selling, general and administrative expenses (532,689) (512,849)
Operating Profit 232,561 208,418
Other Income (Expense):    
Interest income 7,629 9,656
Interest expense (34,254) (34,820)
Miscellaneous income (expense), net 287 (130,107)
Total other expense, net (26,338) (155,271)
Earnings from Continuing Operations Before Taxes 206,223 53,147
Income Tax Expense from Continuing Operations (73,109) (57,149)
Net Earnings (Loss) of the Group from Continuing Operations 133,114 (4,002)
Net Earnings (Loss) of the Group from Discontinued Operations, net of tax 554 (1,001)
Net Earnings (Loss) of the Group 133,668 (5,003)
Net Earnings Attributable to Noncontrolling Interests from Continuing Operations (2,440) (6,080)
Net Earnings Attributable to Redeemable Noncontrolling Interests (5,720) (7,047)
Net Earnings (Loss) Attributable to Jacobs from Continuing Operations 124,954 (17,129)
Net Earnings (Loss) Attributable to Jacobs from Discontinued Operations 554 (1,001)
Net Earnings (Loss) Attributable to Jacobs $ 125,508 $ (18,130)
Net Earnings Per Share:    
Basic Net Earnings (Loss) from Continuing Operations Per Share (in dollars per share) $ 1.12 $ (0.10)
Basic Net Earnings (Loss) from Discontinued Operations Per Share (in dollars per share) 0 (0.01)
Basic Earnings (Loss) Per Share (in dollars per share) 1.12 (0.11)
Diluted Net Earnings (Loss) from Continuing Operations Per Share (in dollars per share) 1.11 (0.10)
Diluted Net Earnings (Loss) from Discontinued Operations Per Share (in dollars per share) 0 (0.01)
Diluted Earnings (Loss) Per Share (in dollars per share) $ 1.12 $ (0.11)
v3.25.4
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Statement of Comprehensive Income [Abstract]    
Net Earnings (Loss) of the Group $ 133,668 $ (5,003)
Other Comprehensive Income (Loss):    
Foreign currency translation adjustments 25,517 (160,148)
Change in cash flow hedges (2,121) 5,821
Change in pension plan liabilities 1,357 24,176
Other Comprehensive Income (Loss) Before Taxes 24,753 (130,151)
Income Tax Benefit (Expense):    
Cash flow hedges 541 (1,484)
Change in pension plan liabilities (946) (1,132)
Income Tax Expense: (405) (2,616)
Net Other Comprehensive Income (Loss) 24,348 (132,767)
Net Comprehensive Income (Loss) of the Group 158,016 (137,770)
Net Earnings Attributable to Noncontrolling Interests (2,440) (6,080)
Net Earnings Attributable to Redeemable Noncontrolling Interests (5,720) (7,047)
Net Comprehensive Income (Loss) Attributable to Jacobs $ 149,856 $ (150,897)
v3.25.4
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($)
$ in Thousands
Total
Total Jacobs Stockholders’ Equity
Common Stock
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Noncontrolling Interests
Beginning balance at Sep. 27, 2024 $ 4,567,303 $ 4,549,467 $ 124,084 $ 2,758,064 $ 2,366,769 $ (699,450) $ 17,836
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net (loss) earnings (12,050) (18,130)     (18,130)   6,080
Foreign currency translation adjustments net of deferred taxes (160,148) (160,148)       (160,148)  
Pension plan liability, net of deferred taxes 23,044 23,044       23,044  
Change in cash flow hedges, net of deferred taxes 4,337 4,337       4,337  
Dividends (261) (261)     (261)    
Redeemable Noncontrolling interests redemption value adjustment 54 54     54    
Repurchase and issuance of redeemable noncontrolling interests 983 983     983    
Distribution of SpinCo Business 1,000 1,000     1,000    
Noncontrolling interests - distributions and other (2,309)           (2,309)
Stock based compensation 13,059 13,059   13,059      
Issuances of equity securities including shares withheld for taxes (6,420) (6,420) 284 (3,609) (3,095)    
Repurchases of equity securities (201,626) (201,626) (1,456) (32,359) (167,811)    
Ending balance at Dec. 27, 2024 4,226,966 4,205,359 122,912 2,735,155 2,179,509 (832,217) 21,607
Beginning balance at Sep. 26, 2025 3,647,905 3,640,807 119,081 2,706,376 1,525,760 (710,410) 7,098
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net (loss) earnings 127,948 125,508     125,508   2,440
Foreign currency translation adjustments net of deferred taxes 25,517 25,517       25,517  
Pension plan liability, net of deferred taxes 411 411       411  
Change in cash flow hedges, net of deferred taxes (1,580) (1,580)       (1,580)  
Dividends (38,009) (38,009)     (38,009)    
Redeemable Noncontrolling interests redemption value adjustment (65,590) (65,590)     (65,590)    
Repurchase and issuance of redeemable noncontrolling interests 219 219     219    
Noncontrolling interests - distributions and other (5,207)           (5,207)
Stock based compensation 17,287 17,287   17,287      
Issuances of equity securities including shares withheld for taxes (8,588) (8,588) 280 (4,961) (3,907)    
Repurchases of equity securities (252,082) (252,082) (1,774) (40,332) (209,976)    
Ending balance at Dec. 26, 2025 $ 3,448,231 $ 3,443,900 $ 117,587 $ 2,678,370 $ 1,334,005 $ (686,062) $ 4,331
v3.25.4
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Parenthetical) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Statement of Stockholders' Equity [Abstract]    
Foreign currency translation adjustments, deferred taxes $ 0 $ 0
Pension and retiree medical plan liability, deferred taxes 946 1,132
Derivative gains (losses), deferred tax expense (benefit) $ (541) $ 1,484
v3.25.4
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Sep. 27, 2024
Cash Flows from Operating Activities:      
Net Earnings (Loss) of the Group $ 133,668 $ (5,003)  
Depreciation and amortization:      
Property, equipment and improvements 21,613 20,922  
Intangible assets 37,996 38,661  
Loss on investment in equity securities 0 145,215 $ 145,200
Stock based compensation 17,287 13,059  
Equity in earnings of operating ventures, net of return on capital distributions (3,245) (2,236)  
Loss (gain) on disposals of assets, net 267 (622)  
Deferred income taxes 6,156 20,253  
Changes in assets and liabilities:      
Receivables and contract assets, net of contract liabilities 152,660 (57,753)  
Prepaid expenses and other current assets (6,620) 9,617  
Miscellaneous other assets 10,747 17,243  
Accounts payable 438 (37,225)  
Accrued liabilities (12,955) (31,398)  
Other deferred liabilities 20,082 1,863  
Other, net 2,666 (25,140)  
Net cash provided by operating activities 380,760 107,456  
Cash Flows from Investing Activities:      
Additions to property and equipment (15,821) (10,333)  
Disposals of property and equipment and other assets 0 1,481  
Capital contributions to equity investees, net of return of capital distributions 334 932  
Net cash used for investing activities (15,487) (7,920)  
Cash Flows from Financing Activities:      
Proceeds from long-term borrowings 719,000 589,000  
Repayments of long-term borrowings (474,000) (221,000)  
Repayments of short-term borrowings 0 (5,345)  
Proceeds from issuances of common stock 7,741 7,984  
Common stock repurchases (252,082) (201,626)  
Taxes paid on vested restricted stock (16,329) (14,404)  
Cash dividends to shareholders (38,558) (36,481)  
Net dividends associated with noncontrolling interests (5,218) (2,245)  
Repurchase of redeemable noncontrolling interests (403) (3,729)  
Net cash (used for) provided by financing activities (59,849) 112,154  
Effect of Exchange Rate Changes 11,664 (58,180)  
Net Increase in Cash and Cash Equivalents and Restricted Cash 317,088 153,510  
Cash and Cash Equivalents, including Restricted Cash, at the Beginning of the Period 1,236,816 1,146,931  
Cash and Cash Equivalents, including Restricted Cash, at the End of the Period $ 1,553,904 $ 1,300,441 $ 1,146,931
v3.25.4
Basis of Presentation
 3 Months Ended
Dec. 26, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Basis of Presentation Basis of Presentation
Unless the context otherwise requires:
•References herein to “Jacobs” are to Jacobs Solutions Inc. and its predecessors;
•References herein to the “Company”, “we”, “us” or “our” are to Jacobs Solutions Inc. and its consolidated subsidiaries; and
•References herein to the “Group” are to the combined economic interests and activities of the Company and the persons and entities holding noncontrolling interests in our consolidated subsidiaries.

On August 29, 2022, Jacobs Engineering Group Inc. ("JEGI"), the predecessor to Jacobs Solutions Inc., implemented a holding company structure, which resulted in Jacobs Solutions Inc. becoming the parent company of, and successor issuer to, JEGI (the "Holding Company Reorganization"). For purposes of this report, references to Jacobs and the "Company", "we", "us" or "our" or our management or business at any point prior to August 29, 2022 refer to JEGI, or JEGI and its consolidated subsidiaries as the predecessor to Jacobs Solutions Inc.
The accompanying consolidated financial statements and financial information included herein have been prepared pursuant to the interim period reporting requirements of Form 10-Q. Consequently, certain information and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) have been condensed or omitted. Readers of this Quarterly Report on Form 10-Q should also read our consolidated financial statements and the notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 26, 2025 (“2025 Form 10-K”).
In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of our consolidated financial statements as of December 26, 2025, and for the three months ended December 26, 2025.
Our interim results of operations are not necessarily indicative of the results to be expected for the full fiscal year.
On September 27, 2024, Jacobs Solutions Inc. ("Jacobs") completed the previously announced Reverse Morris Trust transaction pursuant to which (i) Jacobs first transferred its Critical Mission Solutions business (“CMS”) and portions of its Divergent Solutions (“DVS”) business (referred to herein as the Cyber & Intelligence business (“C&I”) and together with CMS referred to as the “SpinCo Business”), to Amazon Holdco Inc., a Delaware corporation, that was subsequently renamed Amentum Holdings, Inc. (“SpinCo”) (the “Separation”), (ii) Jacobs then effectuated a spin-off of SpinCo by distributing 124,084,108 shares of SpinCo Common stock, par value $0.01 per share (the “SpinCo Common Stock”) by way of a pro rata distribution to its shareholders such that each holder of shares of Jacobs Common stock, par value $1.00 per share, (the “Jacobs Common Stock”) was entitled to receive one share of SpinCo Common Stock for each share of Jacobs Common Stock held as of the record date, September 23, 2024 (the “Distribution”), and (iii) finally, Amentum Parent Holdings LLC merged with and into SpinCo, with SpinCo surviving the merger (the “Merger” and together with the Separation and the Distribution, the “Separation Transaction”).
As a result of the Separation, substantially all SpinCo Business-related assets and liabilities have been separated and distributed (the "Disposal Group"). The Company determined that the Disposal Group should be reported as discontinued operations in accordance with ASC 205-20, Discontinued Operations because their disposal represents a strategic shift that had a major effect on the Company's operations and financial results. As such, the financial results of the SpinCo Business are reflected in the Company's Consolidated Statements of Earnings as well as relevant disclosures as discontinued operations for all periods presented. See Note 14- Discontinued Operations for more information.
v3.25.4
Use of Estimates and Assumptions
 3 Months Ended
Dec. 26, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Use of Estimates and Assumptions Use of Estimates and Assumptions
The preparation of financial statements in conformity with U.S. GAAP requires us to employ estimates and make assumptions that affect the reported amounts of certain assets and liabilities; the revenues and expenses reported for the periods covered by the financial statements; and certain amounts disclosed in these Notes to the Consolidated Financial Statements. Although such estimates and assumptions are based on management’s most recent assessment of the underlying facts and circumstances utilizing the most current information available and past experience, actual results could differ significantly from those estimates and assumptions. Our estimates, judgments and assumptions are evaluated periodically and adjusted accordingly.
Please refer to Note 2- Significant Accounting Policies of Notes to Consolidated Financial Statements included in our 2025 Form 10-K for a discussion of other significant estimates and assumptions affecting our consolidated financial statements.
v3.25.4
Fair Value and Fair Value Measurements
 3 Months Ended
Dec. 26, 2025
Fair Value Disclosures [Abstract]  
Fair Value and Fair Value Measurements Fair Value and Fair Value Measurements
Certain amounts included in the accompanying consolidated financial statements are presented at fair value. Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants as of the date fair value is determined (the “measurement date”). When determining fair value, we consider the principal or most advantageous market in which we would transact, and we consider only those assumptions we believe a typical market participant would consider when pricing an asset or liability. In measuring fair value, we use the following inputs in the order of priority indicated:
Level 1 - Quoted prices in active markets for identical assets or liabilities.
Level 2 - Observable inputs other than quoted prices in active markets included in Level 1, such as (i) quoted prices for similar assets or liabilities; (ii) quoted prices in markets that have insufficient volume or infrequent transactions (e.g., less active markets); and (iii) model-driven valuations in which all significant inputs are observable or can be derived principally from, or corroborated with, observable market data for substantially the full term of the asset or liability.
Level 3 - Unobservable inputs to the valuation methodology that are significant to the fair value measurement.
Please refer to Note 2- Significant Accounting Policies of Notes to Consolidated Financial Statements included in our 2025 Form 10-K for a more complete discussion of the various items within the consolidated financial statements measured at fair value and the methods used to determine fair value. Please also refer to Note 17- Commitments and Contingencies and Derivative Financial Instruments for discussion regarding the Company's derivative instruments and Note 14- Discontinued Operations for discussion regarding the Company's investment in Amentum common shares.
The net carrying amounts of cash and cash equivalents, trade receivables and payables and short-term debt approximate fair value due to the short-term nature of these instruments. See Note 12- Borrowings for a discussion of the fair value of long-term debt.
v3.25.4
New Accounting Pronouncements
 3 Months Ended
Dec. 26, 2025
Accounting Standards Update and Change in Accounting Principle [Abstract]  
New Accounting Pronouncements New Accounting Pronouncements
ASU 2025-12, Accounting Standards Codification ("Codification") Improvements, represents changes to the Codification that clarify, correct errors or make minor improvements to U.S. GAAP. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods, with early adoption permitted. ASU 2025-12 will be effective for the Company in first quarter of fiscal 2028. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements, clarifies the applicability of Topic 270, the types of interim reporting, and the form and content of interim financial statements in accordance with U.S. GAAP, as well as includes a disclosure principle that requires entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. The amendments in this update are effective for interim reporting periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. ASU 2025-11 will be effective for the Company in first quarter of fiscal 2029. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-09, Derivatives and Hedging, (Topic 815): Hedge Accounting Improvements, clarifies certain aspects of the guidance on hedge accounting to address several incremental hedge accounting issues arising from the global reference rate reform initiative. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods, with early adoption permitted. ASU 2025-09 will be effective for the Company in first quarter of fiscal 2028. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-05, Financial Instruments—Credit Losses, (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, provides all entities with a practical expedient option when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under Topic 606. The amendments in this update are effective for annual reporting periods beginning after December 15, 2025, including interim periods within those annual periods, with early adoption permitted. ASU 2025-05 will be effective for the Company in first quarter of fiscal 2027. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-03, Business Combinations, (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity, clarifies the guidance in determining the accounting acquirer in a business combination effected primarily by exchanging equity interests when the acquiree is a variable interest entity that meets the definition of a business. The standard is effective for fiscal years beginning after December 15, 2026, including interim periods within those fiscal years. Early adoption is permitted, and the standard is to be applied prospectively to acquisitions after the adoption date. ASU 2025-03 will be effective for the Company in the first quarter of fiscal 2028. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2024-03, Income Statement, (Subtopic 220-40): Reporting Comprehensive Income - Disaggregation of Income Statement Expenses, requires disclosure, in the notes to financial statements, of specified information about certain costs and expenses. The amendments in this update also provide guidance on the disaggregation disclosure requirements for certain expense captions presented on the face of an entity’s income statement and provide guidance on the disclosure of selling expenses. The amendments in ASU 2024-03 are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. ASU 2024-03 will be effective for the Company in the fourth quarter of fiscal 2027. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2023-09, Income Taxes, (Topic 740): Improvements to Income Tax Disclosures, provides qualitative and quantitative updates to the Company's effective income tax rate reconciliation and income taxes paid disclosures, among others, in order to enhance the transparency of income tax disclosures, including consistent categories and greater disaggregation of information in the rate reconciliation and disaggregation by jurisdiction of income taxes paid. The amendments in ASU 2023-09 are effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. ASU 2023-09 will be effective for the Company in the fourth quarter of fiscal 2026. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2023-06, Disclosure Improvements: Amendments - Codification Amendments in Response to the Disclosure Update and Simplification Initiative of the Securities and Exchange Commission ("SEC"). The Financial Accounting Standards Board issued the standard to introduce changes to U.S. GAAP that originate in either SEC Regulation S-X or S-K, which are rules about the form and content of financial reports filed with the SEC. The provisions of the standard are contingent upon instances where the SEC removes the related disclosure provisions from Regulation S-X and S-K. ASU 2023-06 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. ASU 2023-06 will be effective for the Company in the fourth quarter of fiscal 2026. The Company does not expect that the application of this standard will have a material impact on our consolidated financial statements and related disclosures.
v3.25.4
Revenue Accounting for Contracts
 3 Months Ended
Dec. 26, 2025
Revenue from Contract with Customer [Abstract]  
Revenue Accounting for Contracts Revenue Accounting for Contracts
Disaggregation of Revenues
Our revenues are principally derived from contracts to provide a diverse range of technical, professional, and construction services to a large number of industrial, commercial, and governmental clients. We provide a broad range of engineering, design, and architectural services; construction and construction management services; operations and maintenance services; and technical, digital, process, scientific and systems consulting services. We provide our services through offices and subsidiaries located primarily in North America, Europe, the Middle East, India, Australia, Africa, and Asia. We provide our services under cost-reimbursable (including limited amounts of guaranteed maximum price) and fixed-price contracts. Our contracts are with many different customers in numerous industries. Refer to Note 18- Segment Information for additional information on how we disaggregate our revenues by reportable segment.
The following table further disaggregates our revenue by geographic area for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Revenues:
United States$2,059,773 $1,812,830 
Europe788,214 712,567 
Canada61,131 58,972 
Asia32,685 33,369 
India33,746 36,935 
Australia and New Zealand159,790 140,032 
Middle East and Africa157,942 138,251 
Total$3,293,281 $2,932,956 
Contract Liabilities
Contract liabilities represent amounts billed to clients in excess of revenue recognized to date. Revenue recognized for the three months ended December 26, 2025 that was previously included in the contract liability balance on September 26, 2025 was $448.8 million. Revenue recognized for the three months ended December 27, 2024 that was included in the contract liability balance on September 27, 2024 was $410.7 million.
Remaining Performance Obligations
The Company’s remaining performance obligations as of December 26, 2025 represent a measure of the total dollar value of work to be performed on contracts awarded and in progress. The Company had approximately $18.5 billion in remaining performance obligations as of December 26, 2025. The Company expects to recognize approximately 46% of its remaining performance obligations into revenue within the next twelve months and the remaining 54% thereafter. The majority of the remaining performance obligations after the first twelve months are expected to be recognized over a four-year period.
Although our remaining performance obligations reflect business volumes that are considered to be firm, normal business activities including scope adjustments, deferrals or cancellations may occur that impact volume or expected timing of their recognition. Remaining performance obligations are adjusted to reflect any known project cancellations, revisions to project scope and cost, foreign currency exchange fluctuations and project deferrals, as appropriate.
v3.25.4
Earnings Per Share and Certain Related Information
 3 Months Ended
Dec. 26, 2025
Earnings Per Share Reconciliation [Abstract]  
Earnings Per Share and Certain Related Information Earnings Per Share and Certain Related Information
Basic and diluted earnings per share (“EPS”) are computed using the two-class method, which is an earnings allocation method that determines EPS for common shares and participating securities. The undistributed earnings are allocated between common shares and participating securities as if all earnings had been distributed during the period. Participating securities and common shares have equal rights to undistributed earnings. Net earnings used for the purpose of determining basic and diluted EPS is determined by taking net earnings, less earnings available to participating securities and the redeemable noncontrolling interests redemption value adjustment associated with the PA Consulting transaction.
The following table reconciles the numerator and denominator used to compute basic EPS to the numerator and denominator used to compute diluted EPS for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Numerator for Basic and Diluted EPS:
Net Earnings (Loss) Attributable to Jacobs from Continuing Operations$124,954 $(17,129)
Redeemable Noncontrolling interests redemption value adjustment (See Note 15 - PA Consulting Redeemable Noncontrolling Interests)
7,688 4,568 
Net earnings (loss) from continuing operations allocated to common stock for EPS calculation$132,642 $(12,561)
Net earnings (loss) from discontinued operations allocated to common stock for EPS calculation$554 $(1,001)
Net earnings (loss) allocated to common stock for EPS calculation$133,196 $(13,562)
Denominator for Basic and Diluted EPS:
Shares used for calculating basic EPS attributable to common stock118,594 124,055 
Effect of dilutive securities:
Stock compensation plans (1)412 — 
Shares used for calculating diluted EPS attributable to common stock119,006 124,055 
Net Earnings Per Share:
Basic Net Earnings (Loss) from Continuing Operations Per Share$1.12 $(0.10)
Basic Net Earnings (Loss) from Discontinued Operations Per Share$— $(0.01)
Basic Earnings Per Share$1.12 $(0.11)
Diluted Net Earnings (Loss) from Continuing Operations Per Share$1.11 $(0.10)
Diluted Net Earnings (Loss) from Discontinued Operations Per Share$— $(0.01)
Diluted Earnings (Loss) Per Share$1.12 $(0.11)
Note: Per share amounts may not add due to rounding.
(1)For the three months ended December 27, 2024, because Net Earnings (Loss) Attributable to Jacobs from Continuing Operations was a loss, the effect of antidilutive securities of 576 was excluded from the denominator in calculating diluted EPS.
Share Repurchases
On January 25, 2023, the Company's Board of Directors authorized a share repurchase program of up to $1.0 billion of the Company's common stock, which expired on January 25, 2026 (the "2023 Repurchase Authorization"). By the end of the second fiscal quarter of 2025, the Company had repurchased the full amount of common stock authorized under the 2023 Repurchase Authorization.
On January 30, 2025, the Company's Board of Directors authorized an incremental share repurchase program of up to $1.5 billion of the Company's common stock, to expire on January 30, 2028 (the "2025 Repurchase Authorization"). At December 26, 2025, the Company had $966.2 million remaining under the 2025 Repurchase Authorization.
The following table summarizes repurchase activity for fiscal 2026 under the 2025 Repurchase Authorization for the three months ended December 26, 2025:
Amount Authorized
(2025 Repurchase Authorization)
Average Price Per Share (1)Total Shares Repurchased and Retired
$1,500,000,000$142.051,774,592
(1)Includes commissions paid and excise tax due under the Inflation Reduction Act of 2022 and calculated at the average price per share.

Our share repurchase program does not obligate the Company to purchase any shares. Share repurchases may be executed through various means including, without limitation, accelerated share repurchases, open market transactions, privately negotiated transactions, purchases pursuant to Rule 10b5-1 plans or otherwise. The authorization for the share repurchase programs may be terminated, increased or decreased by the Company’s Board of Directors in its discretion at any time. The timing, amount and manner of share repurchases may depend upon market conditions and economic circumstances, availability of investment opportunities, the availability and costs of financing, currency fluctuations, the market price of the Company's common stock, other uses of capital and other factors.
Cash Dividends
On January 29, 2026, the Company’s Board of Directors declared a quarterly dividend of $0.36 per share of the Company’s common stock to be paid on March 20, 2026, to shareholders of record on the close of business on February 20, 2026. Future dividend declarations are subject to review and approval by the Company’s Board of Directors. Dividends paid through the first fiscal quarter of 2026 and the preceding fiscal year are as follows:
Declaration DateRecord DatePayment DateCash Amount (per share)
November 18, 2025December 2, 2025December 19, 2025$0.32
July 31, 2025August 22, 2025September 19, 2025$0.32
April 30, 2025May 23, 2025June 20, 2025$0.32
January 30, 2025February 21, 2025March 21, 2025$0.32
September 26, 2024October 25, 2024November 22, 2024$0.29
v3.25.4
Goodwill and Intangibles
 3 Months Ended
Dec. 26, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangibles Goodwill and Intangibles
The carrying value of goodwill appearing in the accompanying Consolidated Balance Sheets at December 26, 2025 and September 26, 2025 was as follows (in thousands):
Infrastructure & Advanced FacilitiesPA ConsultingTotal
Balance September 26, 2025$3,351,490 $1,429,328 $4,780,818 
Foreign currency translation adjustments and other 2,249 10,570 12,819 
Balance December 26, 2025$3,353,739 $1,439,898 $4,793,637 
The following table provides certain information related to the Company’s acquired intangibles in the accompanying Consolidated Balance Sheets at December 26, 2025 and September 26, 2025 (in thousands):
Customer Relationships, Contracts and BacklogDeveloped TechnologyTrade NamesTotal
Balance September 26, 2025$521,275 $19,524 $176,871 $717,670 
Amortization(31,269)(2,998)(3,729)(37,996)
Foreign currency translation adjustments and other2,766 1 1,207 3,974 
Balance December 26, 2025$492,772 $16,527 $174,349 $683,648 
The following table presents estimated amortization expense of intangible assets for the remainder of fiscal 2026 and for the succeeding years.
Fiscal Year(in millions)
2026$101.3 
2027109.6 
202899.2 
202999.2 
203076.8 
203157.3 
Thereafter140.2 
Total$683.6 
v3.25.4
Receivables and Contract Assets
 3 Months Ended
Dec. 26, 2025
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]  
Receivables and Contract Assets Receivables and Contract Assets
The following table presents the components of receivables and contract assets appearing in the accompanying Consolidated Balance Sheets at December 26, 2025 and September 26, 2025, as well as certain other related information (in thousands):
December 26, 2025September 26, 2025
Components of receivables and contract assets:
Amounts billed, net$1,567,508 $1,386,253 
Unbilled receivables and other1,058,553 1,115,286 
Contract assets433,708 487,528 
Total receivables and contract assets, net$3,059,769 $2,989,067 
Amounts billed, net consist of amounts invoiced to clients in accordance with the terms of our client contracts and are shown net of an allowance for expected credit losses. We anticipate that substantially all of such billed amounts will be collected over the next twelve months.
Unbilled receivables and other, which represent an unconditional right to payment subject only to the passage of time, are reclassified to amounts billed when they are billed under the terms of the contract. We anticipate that substantially all of such unbilled amounts will be billed and collected over the next twelve months.
Contract assets represent unbilled amounts where the right to payment is subject to more than merely the passage of time and includes performance-based incentives and services that have been provided in advance of agreed contractual milestones. Contract assets are transferred to unbilled receivables when the right to consideration becomes unconditional and are transferred to amounts billed upon invoicing.
v3.25.4
Accumulated Other Comprehensive Income (Loss)
 3 Months Ended
Dec. 26, 2025
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)
The following table presents the Company's roll forward of accumulated other comprehensive loss after-tax as of December 26, 2025 (in thousands):
Change in Net Pension Obligation
Foreign Currency Translation Adjustments
Gain/(Loss) on Cash Flow Hedges (1)
Total
Balance at September 26, 2025
$(372,910)$(373,969)$36,469 $(710,410)
Other comprehensive income 643 25,517 235 26,395 
Reclassifications from accumulated other comprehensive loss(232)— (1,815)(2,047)
Balance at December 26, 2025
$(372,499)$(348,452)$34,889 $(686,062)

(1) Included in the Company’s cumulative net unrealized gains from interest rate and cross currency swaps recorded in accumulated other comprehensive loss as of December 26, 2025 were approximately $6.2 million in unrealized gains, net of taxes, which are expected to be realized in earnings during the twelve months subsequent to December 26, 2025.
v3.25.4
Income Taxes
 3 Months Ended
Dec. 26, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The Company’s effective tax rates from continuing operations for the three months ended December 26, 2025 and December 27, 2024 were 35.5% and 107.5%, respectively. Significant items contributing to differences between the statutory U.S. federal corporate tax rate of 21.0% and the Company's effective tax rate for the three-month period ended December 26, 2025 were $16.6 million of unfavorable tax impacts related to non-deductible incentive compensation associated with the Company's PA Consulting investment, as well as U.S. state income tax expense of $5.8 million and U.S. tax on foreign earnings of $4.6 million. These expense items are expected to have a continuing impact on the Company's effective tax rate for the remainder of the fiscal year.

The most significant items contributing to the difference between the statutory U.S. federal corporate tax rate of 21.0% and the Company's effective tax rate of 107.5% for the three-month period ended December 27, 2024 were $37.0 million in unfavorable tax impacts associated with the non-deductibility of losses from the Company's investment in Amentum stock as well as U.S. state income tax expense of $5.4 million and U.S. tax on foreign earnings of $4.9 million.
On July 4, 2025, H.R. 1, also referred to as the “One Big Beautiful Bill Act” (“OBBBA”), was enacted in the U.S. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act (“TCJA”), modifications to the international tax framework and pre-TCJA treatment for certain business provisions. ASC 740, Income Taxes, requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation is enacted. The OBBBA has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. The Company is currently assessing its impact on the consolidated financial statements for the provisions that will be effective in future periods.
The amount of income taxes the Company pays is subject to ongoing audits by tax jurisdictions around the world. In the normal course of business, the Company is subject to examination by tax authorities throughout the world, including such major jurisdictions as Australia, Canada, India, the United Kingdom and the United States. Our estimate of the potential outcome of any uncertain tax issue is subject to our assessment of the relevant risks, facts, and circumstances existing at the time. The Company believes that it has adequately provided for reasonably foreseeable outcomes related to these matters. However, future results may include favorable or unfavorable adjustments to our estimated tax liabilities in the period the assessments are made or resolved, which may impact our effective tax rate.
v3.25.4
Joint Ventures, VIEs and Other Investments
 3 Months Ended
Dec. 26, 2025
Equity Method Investments and Joint Ventures [Abstract]  
Joint Ventures, VIEs and Other Investments Joint Ventures, VIEs and Other Investments
For the Company's consolidated variable interest entities ("VIE") joint ventures, the carrying value of assets and liabilities was $155.9 million and $140.9 million, respectively, as of December 26, 2025 and $163.4 million and $144.7 million, respectively, as of September 26, 2025. There are no consolidated VIEs that have debt or credit facilities.
For the Company's proportionate consolidated VIEs, the carrying value of assets and liabilities was $146.7 million and $138.6 million, respectively, as of December 26, 2025, and $143.9 million and $131.9 million, respectively, as of September 26, 2025.
The carrying values of our investments in equity method joint ventures in the Consolidated Balance Sheets (reported in Other Noncurrent Assets: Miscellaneous) as of December 26, 2025 and September 26, 2025 were $39.3 million and $36.3 million, respectively. Additionally, income from equity method joint ventures (reported in Revenue) was $4.2 million and $3.7 million, respectively, during the three months ended December 26, 2025 and December 27, 2024. As of December 26, 2025, the Company's equity method investment carrying values do not include material amounts exceeding their share of the respective joint ventures' reported net assets.
Accounts receivable from unconsolidated joint ventures accounted for under the equity method was $12.8 million and $13.6 million as of December 26, 2025 and September 26, 2025, respectively.
v3.25.4
Borrowings
 3 Months Ended
Dec. 26, 2025
Debt Disclosure [Abstract]  
Borrowings Borrowings
At December 26, 2025 and September 26, 2025, long-term debt consisted of the following (principal amounts in thousands):
Interest RateMaturityDecember 26, 2025September 26, 2025
Revolving Credit FacilityBenchmark + applicable margin (1)February 2028$640,000 $395,000 
2025 Term Loan Facility - USD Portion
Benchmark + applicable margin (2)
March 2027200,000 200,000 
2025 Term Loan Facility - GBP Portion
Benchmark + applicable margin (2)
March 2027554,320 550,261 
Fixed-rate:
5.9% Bonds, due 2033
5.9% (3)
March 2033500,000 500,000 
6.35% Bonds, due 2028
6.35%
August 2028600,000 600,000 
Less: Deferred Financing Fees(8,298)(8,805)
Total Long-term debt, net$2,486,022 $2,236,456 
(1)The U.S. dollar denominated borrowings under the Revolving Credit Facility bear interest at either a SOFR rate plus a margin of between 0.975% and 1.725% or a base rate plus a margin of between 0% and 0.625% depending on the Company’s Consolidated Leverage Ratio or Debt Rating (each as defined in the Revolving Credit Facility (defined below)). The interest rate under the Revolving Credit Agreement also incorporates a modest sustainability-linked pricing adjustment, which resulted in a favorable interest rate adjustment to the Company in February 2025. The applicable SOFR rates, including applicable margins, at December 26, 2025 and September 26, 2025 were approximately 5.04% and 5.37%. Borrowings denominated in British pounds bear interest at an adjusted SONIA rate plus a margin of between 0.908% and 1.658%. There were no amounts drawn in British pounds as of December 26, 2025.
(2)Borrowings under the 2025 Term Loan Facility bear interest at either a SONIA rate or term SOFR rate plus a margin of between 0.975% and 1.60% or a base rate plus a margin of between 0% and 0.50% depending on the Company’s Consolidated Leverage Ratio or Debt Rating. The applicable SOFR and SONIA rates, including applicable margins, at December 26, 2025 and September 26, 2025 were approximately 5.02% and 5.42% for borrowings denominated in U.S. dollars and 4.72% and 4.97% for borrowings denominated in British pounds.
(3)The interest rate payable on the 5.90% Bonds (as defined below) may be increased by an additional 12.5 basis points on each of September 1, 2028 and September 1, 2030, based on whether or not the Company achieves the key performance indicators set forth in the First Supplemental Indenture (as defined below). Each key performance indicator is independent of the other. Therefore, we may achieve one, both, or neither.
We believe the carrying values of the Revolving Credit Facility and the 2025 Term Loan Facility approximates fair value based on the interest rates and scheduled maturities applicable to the outstanding borrowings. At December 26, 2025, the fair value of the 5.90% Bonds and the 6.35% bonds is estimated to be $527.4 million and $632.0 million, respectively, based on Level 2 inputs. The fair value is determined by discounting future cash flows using interest rates available for issuances with similar terms and average maturities.
Revolving Credit Facility and Term Loans
The Company and certain of its subsidiaries maintain an unsecured revolving credit facility (the “Revolving Credit Facility”) established under a third amended and restated credit agreement, dated February 6, 2023 (the "Revolving Credit Agreement"), among Jacobs and certain of its subsidiaries as borrowers and a syndicate of U.S. and international banks and financial institutions. Amounts up to $2.25 billion in credit extensions under the Revolving Credit Facility can be funded in U.S. dollars, British Sterling, Euros, Canadian dollars, Australian dollars, Swedish Krona, Singapore dollars and other agreed upon alternative currencies. The Revolving Credit Agreement also provides for a letter of credit sub facility of $400.0 million, and provides for a $100.0 million sub facility for swing line loans. Letters of credit are subject to fees based on the Company’s Consolidated Leverage Ratio or Debt Rating, whichever is more favorable to the Company. The maturity date of the Revolving Credit Facility is February 6, 2028. The Company is a guarantor of the obligations of JEGI and its subsidiaries under the Revolving Credit Agreement.
The Company and JEGI maintained an unsecured delayed draft term loan facility (the “2021 Term Loan Facility”) established under an amended and restated term loan agreement dated February 6, 2023 (the "Amended and Restated Term Loan Agreement"), by and among the Company and JEGI and a syndicate of banks and financial institutions. On March 13, 2025, the Company exchanged approximately 19.5 million shares of our investment in Amentum Holdings, Inc. for approximately £239.8 million, or $311.5 million, in aggregate principal amount under the 2021 Term Loan Facility in an equity-for-debt transaction (the "Equity-for-Debt Transaction"). The aggregate principal amount of debt was immediately extinguished, and the Company received no other consideration (cash or otherwise) in connection with the exchange. For more information, please refer to Note 14- Discontinued Operations. In connection with the Equity-for-Debt Transaction, $20.5 million in discounts and expenses were recognized as loss on extinguishment of debt.
On March 27, 2025, the Company, as guarantor, and JEGI, as borrower, entered into a term loan agreement (the “2025 Term Loan Facility”) with Bank of America, N.A., as administrative agent and sole lead arranger, and the lenders party thereto. Under the 2025 Term Loan Facility, JEGI borrowed a $200.0 million term loan and £410.0 million term loan for a term of two-years from the date of initial funding, maturing on March 26, 2027. The proceeds from the 2025 Term Loan Facility were used to repay the remaining outstanding 2021 Term Loan Facility principal equal to $120.0 million and £410.2 million, or $531.6 million, with the remaining proceeds used for general corporate purposes.
We were in compliance with the covenants under the Revolving Credit Facility and 2025 Term Loan Facility at December 26, 2025.
5.90% Bonds, due 2033
On February 16, 2023, JEGI completed an offering of $500.0 million aggregate principal amount of 5.90% Bonds due 2033 (the “5.90% Bonds”). The 5.90% Bonds are fully and unconditionally guaranteed by the Company (the “5.90% Bonds Guarantee”). The 5.90% Bonds and the 5.90% Bonds Guarantee were offered pursuant to a prospectus supplement, dated February 13, 2023, to the prospectus dated February 6, 2023, that forms a part of the Company's and JEGI’s automatic shelf registration statement on Form S-3ASR previously filed with the SEC, and were issued pursuant to an Indenture, dated as of February 16, 2023, between JEGI, as issuer, the Company, as guarantor, and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), as amended and supplemented by the First Supplemental Indenture, dated as of February 16, 2023 (the “First Supplemental Indenture”). Interest on the 5.90% Bonds is payable semi-annually in arrears on each March 1 and September 1, until maturity. The 5.90% Bonds bear interest at 5.90% per annum, subject to adjustments as discussed in note (3) to the table above.
Prior to December 1, 2032 (the “5.90% Bonds Par Call Date”), JEGI may redeem the 5.90% Bonds at its option, in whole or in part, at any time and from time to time, at the redemption price calculated by JEGI (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of: (1) (a) the sum of the present values of the remaining scheduled payments of principal and interest on the 5.90% Bonds being redeemed, assuming that such 5.90% Bonds matured on the 5.90% Bonds Par Call Date, discounted to the redemption date on a semiannual basis (assuming a 360-day year of twelve 30-day months), at the Treasury Rate (as defined in the First Supplemental Indenture) plus 35 basis points, less (b) interest accrued to the redemption date, and (2) 100% of the principal amount of such 5.90% Bonds to be redeemed, plus, in either case, accrued and unpaid interest on the 5.90% Bonds, if any, to, but excluding, the redemption date. At any time and from time to time on or after the 5.90% Bonds Par Call Date, JEGI may redeem the 5.90% Bonds, at its option, in whole or in part, at a redemption price equal to 100% of the principal amount of the 5.90% Bonds to be redeemed, plus accrued and unpaid interest thereon, if any, up to, but excluding, the redemption date.
6.35% Bonds, due 2028
On August 18, 2023, JEGI completed an offering of $600.0 million aggregate principal amount of 6.35% Bonds due 2028 (the “6.35% Bonds”). The 6.35% Bonds are fully and unconditionally guaranteed by the Company (the “6.35% Bonds Guarantee”). The 6.35% Bonds and the 6.35% Bonds Guarantee were offered pursuant to a prospectus supplement, dated August 15, 2023, to the prospectus dated February 6, 2023, that forms a part of the Company and JEGI’s automatic shelf registration statement on Form S-3ASR previously filed with the SEC, and were issued pursuant to the Indenture, as amended and supplemented by the Second Supplemental Indenture, dated as of August 18, 2023 (the “Second Supplemental Indenture”). Interest on the 6.35% Bonds is payable semi-annually in arrears on each February 18 and August 18, until maturity. The Notes will bear interest at a rate of 6.35% per annum and will mature on August 18, 2028. The 6.35% Bonds bear interest at 6.35% per annum.
Prior to July 18, 2028 (the “6.35% Bonds Par Call Date”), JEGI may redeem the 6.35% Bonds at its option, in whole or in part, at any time and from time to time, at the redemption price calculated by JEGI (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of: (1) (a) the sum of the present values of the remaining scheduled payments of principal and interest on the 6.35% Bonds being redeemed, assuming that such 6.35% Bonds matured on the 6.35% Bonds Par Call Date, discounted to the redemption date on a semiannual basis (assuming a 360-day year of twelve 30-day months), at the Treasury Rate (as defined in the Second Supplemental Indenture) plus 30 basis points, less (b) interest accrued to the redemption date, and (2) 100% of the principal amount of such 6.35% Bonds to be redeemed, plus, in either case, accrued and unpaid interest on the 6.35% Bonds, if any, to, but excluding, the redemption date. At any time and from time to time on or after the 6.35% Bonds Par Call Date, JEGI may redeem the 6.35% Bonds, at its option, in whole or in part, at a redemption price equal to 100% of the principal amount of the 6.35% Bonds to be redeemed, plus accrued and unpaid interest thereon, if any, to, but excluding, the redemption date.
Other arrangements
The Company holds an interest rate derivative contract to swap a portion of our variable rate debt to fixed rate debt. See Note 17- Commitments and Contingencies and Derivative Financial Instruments for discussion regarding the Company's derivative instruments.
The Company issued $0.3 million in letters of credit under the Revolving Credit Facility, leaving $1.61 billion of available borrowing capacity under the Revolving Credit Facility at December 26, 2025. In addition, the Company had issued $249.8 million under various separate, committed and uncommitted letter-of-credit facilities for total issued letters of credit of $250.1 million at December 26, 2025.
v3.25.4
Pension and Other Postretirement Benefit Plans
 3 Months Ended
Dec. 26, 2025
Retirement Benefits [Abstract]  
Pension and Other Postretirement Benefit Plans Pension and Other Postretirement Benefit Plans
The following table presents the components of net periodic pension benefit expense recognized in earnings during the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Component:
Service cost$2,838 $2,499 
Interest cost21,880 20,402 
Expected return on plan assets(27,522)(24,687)
Amortization of previously unrecognized items3,380 3,002 
Total net periodic pension benefit expense recognized$576 $1,216 
The service cost component of net periodic pension benefit is presented in the same line item as other compensation costs (direct cost of contracts and selling, general and administrative expenses) and the other components of net periodic pension expense are presented in miscellaneous income (expense), net on the Consolidated Statements of Earnings.
The following table presents certain information regarding the Company’s cash contributions to our pension plans for fiscal 2026 (in thousands):
Cash contributions made during the first three months of fiscal 2026
$4,011 
Cash contributions projected for the remainder of fiscal 2026
9,839 
Total$13,850 
v3.25.4
Discontinued Operations
 3 Months Ended
Dec. 26, 2025
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations Discontinued Operations
Separation of Critical Mission Solutions (“CMS”) and Cyber & Intelligence (“C&I”) Businesses
On September 27, 2024, Jacobs completed the previously announced Reverse Morris Trust transaction pursuant to which (i) Jacobs first transferred its CMS and portions of its DVS business to Amazon Holdco Inc., a Delaware corporation (SpinCo), which has since been renamed Amentum Holdings, Inc., (ii) Jacobs then effectuated a spin-off of SpinCo by distributing 124,084,108 shares of SpinCo Common Stock, by way of a pro rata distribution to its shareholders such that each holder of shares of Jacobs Common Stock was entitled to receive one share of SpinCo Common Stock for each share of Jacobs common stock held as of the record date, September 23, 2024 (the "Distribution"), and (iii) finally, Amentum Parent Holdings LLC merged with and into SpinCo, with SpinCo surviving the merger. Amentum Holdings, Inc., as the surviving entity of the Separation Transaction is now an independent public company with common stock listed on the New York Stock Exchange under the symbol “AMTM” (“Amentum”).
In connection and in accordance with the terms of the Separation Transaction and prior to the Distribution and the Merger, Jacobs received a cash payment from SpinCo of approximately $911.0 million, after adjustments based on the estimated levels of cash, debt and working capital in the SpinCo Business as of the transaction date, and recorded estimated additional net working capital receivable amounts reflected in Receivables and Contract Assets in the Company's September 27, 2024 Consolidated Balance Sheet, subject to final settlement between the parties after the closing of the transaction and as set forth in the Agreement and Plan of Merger, dated as of November 20, 2023 (as amended, the “Merger Agreement"). Subsequent to the closing and upon final determination in March 2025, the parties determined that the Company was entitled to $70.0 million in final settlement of the post-closing working capital adjustment, resulting in a $24.0 million reduction from preliminary recorded receivable amounts, which was charged to Retained Earnings in the Company's Consolidated Balance Sheet. The $70.0 million final receivable balance was collected in full on April 10, 2025 and immediately utilized to pay down existing amounts owed on Company’s Revolving Credit Facility upon receipt.
Summarized Financial Information of Discontinued Operations
    The following table represents earnings from discontinued operations, net of tax (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Revenues$— $64 
Direct cost of contracts— (60)
Gross (loss) profit
— 4 
Selling, general and administrative expense (1)
487 (1,348)
Operating (Loss) Profit
487 (1,344)
Other income, net
— — 
(Loss) Earnings Before Taxes from Discontinued Operations
487 (1,344)
Income Tax Benefit (Expense)
67 343 
Net (Loss) Earnings of the Group from Discontinued Operations
554 (1,001)
Net Earnings Attributable to Noncontrolling Interests from Discontinued Operations
— — 
Net (Loss) Earnings Attributable to Jacobs from Discontinued Operations
$554 $(1,001)
(1)Selling, general and administrative expenses for the three months ended December 26, 2025 were favorably impacted by $0.8 million from an indemnity reserve in respect of an ongoing non-U.S. tax matter related to an entity that was part of the separated SpinCo Business.
No notable components of net cash flows from discontinued operations were included in our Consolidated Statements of Cash Flows for the three months ended December 26, 2025 and December 27, 2024.
No assets and liabilities remained held for spin as of December 26, 2025 and September 26, 2025 balance sheet dates.
Investment in Amentum Stock
As a result of the Separation Transaction on September 27, 2024, Jacobs held approximately 29.2 million of the outstanding shares of Amentum common stock initially recorded on a net book value basis under spin-off accounting rules.
Following the Merger and in accordance with the Escrow Agreement, Jacobs transferred approximately 10.9 million of the 29.2 million of Amentum shares held into escrow to be held and distributed between the parties based on terms and conditions set forth in the Merger Agreement. The entire 29.2 million shares of Amentum, consisting of both the 10.9 million in escrow shares and the remaining 18.3 million shares owned by Jacobs was reflected in the Company’s September 27, 2024 Consolidated Balance Sheet pending final settlement of the escrow shares at a recorded fair value of $749.5 million.
In February 2025, in connection with the determination of SpinCo’s fiscal year 2024 performance against certain agreed upon milestones and ensuing escrow share settlement proceedings (the “Post-Closing Additional Merger Consideration Adjustment”), the parties agreed that Jacobs was entitled to receive at least an additional 1.2 million shares held in escrow, which were then released to Jacobs. Subsequently, on March 13, 2025, Jacobs completed the Equity-for-Debt Transaction (see Note 12- Borrowings for additional information). After giving effect to the above transactions, the Company's remaining investment in Amentum represented the 9.7 million shares remaining in escrow.
Further, on April 7, 2025, the parties agreed to a final determination of the Post-Closing Additional Merger Consideration Adjustment, pursuant to which Jacobs became entitled to receive approximately 7.3 million Amentum shares from the remaining 9.7 million shares held in escrow mentioned above, and former Amentum equity sponsors became entitled to receive the remainder of approximately 2.4 million shares. The finalization of the shares deemed owed to the former Amentum equity sponsors resulted in approximately $21.9 million in charges to Miscellaneous Expense in the Company's Consolidated Statement of Earnings in the second fiscal quarter of 2025. These shares were subsequently released to the respective parties during the third fiscal quarter of 2025.
Finally, on April 30, 2025, the Jacobs Board of Directors declared a dividend in kind to distribute the remaining 7.3 million shares of Amentum's stock to Jacobs’ shareholders of record as of May 16, 2025, which were distributed on a pro rata basis on May 30, 2025, resulting in an impact on retained earnings as shown on the Company's Consolidated Statements of Shareholders' Equity for the year ended September 26, 2025. Following the distribution, the Company no longer owns any shares of Amentum common stock.
The Company reported $145.2 million in fair value mark-to-market losses and other related charges associated with the investment in Amentum shares for the three months ended December 27, 2024, which were included in Miscellaneous Income (Expense), net as reported in Other Income (Expense) in the Company’s Consolidated Statement of Earnings.
Transition Services Agreement
Upon closing of the Separation Transaction, the Company entered into a Transition Services Agreement (the "TSA") with Amentum pursuant to which the Company, on an interim basis, will provide various services to Amentum including corporate, information technology, and project services. The initial term of the TSA began immediately following the closing of the transaction on September 27, 2024. As of September 26, 2025, the TSA was substantially exited with certain agreed upon extensions which were completed as of December 26, 2025. Pursuant to the terms of the TSA, the Company received payments for the interim services. From inception of the TSA agreement, the Company recognized costs recorded in SG&A expense incurred to perform the TSA, offset by $0.1 million and $11.4 million in TSA related income for such services that is reported in miscellaneous income (expense) for the three month periods ended December 26, 2025 and December 27, 2024, respectively.
Sale of Energy, Chemicals and Resources ("ECR") Business
On April 26, 2019, Jacobs completed the sale of its Energy, Chemicals and Resources ("ECR") business to Worley Limited, a company incorporated in Australia ("Worley"), for a purchase price of $3.4 billion consisting of (i) $2.8 billion in cash plus (ii) $58.2 million ordinary shares of Worley, subject to adjustments for changes in working capital and certain other items. For the three month periods ended December 26, 2025 and December 27, 2024, there were no amounts reported in Net Loss Attributable to Jacobs from Discontinued Operations on the Consolidated Statement of Earnings related to ECR.
v3.25.4
PA Consulting Redeemable Noncontrolling Interests
 3 Months Ended
Dec. 26, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]  
PA Consulting Redeemable Noncontrolling Interests PA Consulting Redeemable Noncontrolling Interests
In connection with the Company's strategic investment in PA Consulting, the Company recorded redeemable noncontrolling interests, including subsequent purchase accounting adjustments, representing the noncontrolling interest holders' equity interests in the form of preferred and common shares of PA Consulting, with substantially all of the value associated with these interests allocable to the preferred shares. PA Consulting is accounted for as a consolidated subsidiary and as a separate operating segment.
During the three months ended December 26, 2025 and December 27, 2024, PA Consulting repurchased certain shares of the redeemable noncontrolling interest holders for $0.4 million and $3.7 million respectively, in cash. The difference between the cash purchase prices and the recorded book values of these repurchased and issued interests was recorded in the Company’s consolidated retained earnings. The Company held approximately 71% of the outstanding ownership of PA Consulting as of December 26, 2025 and September 26, 2025.
For the three months ended December 26, 2025 and December 27, 2024, there was a $0.06 and $0.04 adjustment to earnings per share resulting from adjustments to the redeemable noncontrolling interests to reflect the excess of redemption values over fair values of the B common shares component of the redeemable noncontrolling interests. The redemption value adjustments associated with redeemable noncontrolling interests preference share repurchase and reissuance activities that were recorded had an immaterial impact to earnings per share for the three months ended December 26, 2025 and December 27, 2024.
The changes above had no impact on the Company’s overall results of operations, financial position or cash flows. See Note 6- Earnings Per Share and Certain Related Information for more information.
Changes in the redeemable noncontrolling interests during the three months ended December 26, 2025 are as follows (in thousands):
Balance at September 26, 2025$1,018,694 
Accrued Preferred Dividend to Preference Shareholders21,570 
Attribution of Preferred Dividend to Common Shareholders(21,570)
Net earnings attributable to redeemable noncontrolling interests to Common Shareholders5,720 
Redeemable Noncontrolling interests redemption value adjustment65,590 
Repurchase of redeemable noncontrolling interests(622)
Cumulative translation adjustments and other
3,598 
Balance at December 26, 2025$1,092,980 
In addition, certain employees and non-employees of PA Consulting are eligible to receive equity-based incentive grants since the March 2, 2021 original investment date. Under the terms of the applicable agreements, these grants have reached vested status on a tranche basis of approximately 40% through July 2025, with the remaining 60% anticipated to vest and result in associated expense recognition upon a liquidity event, as defined in the applicable agreements, which is expected to take place in 2026. The Company has accrued liabilities associated with the vested grants at fair value in the amounts of $127.5 million and $103.8 million reported in Other deferred liabilities in our Consolidated Balance Sheets as of December 26, 2025 and September 26, 2025, respectively. Also, during the three months ended December 26, 2025 and December 27, 2024, the Company has recorded $22.6 million and $5.9 million, respectively, in expenses associated with these agreements, which is reflected in selling, general and administrative expenses in the Consolidated Statements of Earnings. As of December 26, 2025, there was approximately $178 million of total unrecognized compensation cost related to the remaining 60% vesting of the associated grants under these agreements based on December 26, 2025 fair values which are anticipated to vest upon a liquidity event, as defined in the applicable agreements. This cost is expected to be recognized in Selling, general and administrative expenses when such a liquidity event is considered probable, which could occur in the second quarter of fiscal 2026.
On January 2, 2026, Jacobs entered into an Implementation Deed (the “Implementation Deed”) with PA Consulting. Pursuant to the Implementation Deed and certain related agreements, and subject to the terms and conditions thereof, Jacobs will acquire from shareholders of PA Consulting all of the remaining issued share capital of PA Consulting ("PA Shares") owned by the PA Consulting shareholders other than Jacobs and its affiliates. The Company will acquire the PA Shares for an aggregate initial consideration of approximately £1.216 billion to be paid through a combination of cash and new shares of Jacobs' common stock, par value $1.00 per share (“Company Common Stock”), with the number of shares of Company Common Stock set at 20% of the aggregate initial consideration, net of certain PA Consulting shareholder expenses and after making payments with respect to certain PA Shares which the Company has agreed to acquire for 100% cash, and issued at a price of £100.20 per share, as set forth in the Implementation Deed. The initial consideration is subject to adjustment in accordance with the terms of the Implementation Deed. Assuming the transaction closes, on the second anniversary of the effective date as defined under the terms of the Implementation Deed, the Company will pay an additional £75 million in shares of Company Common Stock, cash or a combination thereof, as determined by the Company in its sole discretion (the transactions described in this paragraph, collectively, the “PA Consulting Transaction”). The completion of the PA Consulting Transaction is subject to the satisfaction or waiver of certain closing conditions, including approvals by the PA Consulting shareholders, the High Court of Justice in England and Wales, the UK Secretary of State and the Danish Business Authority, and the consummation of certain related transactions. The PA Consulting Transaction is expected to close in the second quarter of fiscal 2026. Upon consummation of the PA Consulting Transaction, the Company will no longer carry Redeemable Noncontrolling Interests on the Jacobs Consolidated Financial Statements commencing with the period in which the transaction is consummated.
Restricted Cash
The Company's investment in PA Consulting includes $1.0 million and $1.4 million at December 26, 2025 and September 26, 2025, respectively, in cash that is restricted from general use and is reflected in Prepaid expenses and other in the Company's Consolidated Balance Sheets.
v3.25.4
Restructuring and Other Charges
 3 Months Ended
Dec. 26, 2025
Restructuring and Related Activities [Abstract]  
Restructuring and Other Charges Restructuring and Other Charges
During fiscal 2023, the Company implemented restructuring and separation initiatives relating to the Separation Transaction (see Note 14- Discontinued Operations for additional information) which continued through fiscal years 2024 and 2025; Jacobs has substantially completed the restructuring program for the Separation Transaction at the end of calendar year 2025. Restructuring initiatives were also implemented during fiscal 2023 relating to our PA Consulting business, which are substantially completed. During the first fiscal quarter of 2026, the Company implemented integration initiatives relating to the PA Consulting Transaction (see Note 15- PA Consulting Redeemable Noncontrolling Interests for additional information). While restructuring activities for these programs are comprised mainly of employee termination costs, the separation and integration activities are primarily related to the engagement of outside services, dedicated internal personnel and other related costs dedicated to those transactions.
Collectively, the above-mentioned restructuring activities are referred to as “Restructuring and other charges.”
The following table summarizes the impacts of the Restructuring and other charges by operating segment for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Infrastructure & Advanced Facilities
$2,242 $14,976 
PA Consulting1,757 (236)
Total (1)
$3,999 $14,740 

(1)The three months ended December 26, 2025 and December 27, 2024 included approximately $2.2 million and $15.0 million, respectively, in restructuring and other charges relating to the Separation Transaction (primarily professional services and employee separation costs). The three months ended December 26, 2025 included approximately $1.8 million in restructuring and other charges relating to the PA Consulting Transaction (primarily professional services and dedicated internal personnel), which were included in operating profit in the Company's Consolidated Statement of Earnings (mainly in SG&A).
The activity in the Company’s accruals for Restructuring and other charges for the three months ended December 26, 2025 is as follows (in thousands):
Balance at September 26, 2025
$14,516 
Net Charges
3,999 
Payments and other(14,155)
Balance at December 26, 2025$4,360 
The following table summarizes the Restructuring and other charges by major type of costs for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
 Voluntary and Involuntary Termination $1,709 $385 
Outside Services (1)
1,176 11,412 
Other (2)
1,114 2,943 
Total
$3,999 $14,740 
(1)    Amounts in the three months ended December 26, 2025 are comprised of professional services relating to the Separation Transaction and PA Consulting Transaction. Amounts in the three months ended December 27, 2024 are comprised of professional services relating to the Separation Transaction.
(2)    Amounts in the three months ended December 26, 2025 are comprised of charges relating to the PA Consulting Transaction and Separation Transaction. Amounts in the three months ended December 27, 2024 are comprised of charges relating to the Separation Transaction.
Cumulative amounts incurred to date for restructuring and other programs that were active as of December 26, 2025 by each major type of cost are as follows (in thousands):
 Voluntary and Involuntary Termination $110,751 
Outside Services159,651 
Other (1)
3,925 
Total$274,327 
(1)Cumulative amount includes a $35.2 million realized gain on interest rate swaps settled during the fourth quarter of fiscal 2024.
v3.25.4
Commitments and Contingencies and Derivative Financial Instruments
 3 Months Ended
Dec. 26, 2025
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies and Derivative Financial Instruments Commitments and Contingencies and Derivative Financial Instruments
Derivative Financial Instruments
The Company is exposed to interest rate risk under its variable rate borrowings and additionally, due to the nature of the Company's international operations, we are at times exposed to foreign currency risk. As such, we sometimes enter into foreign exchange hedging contracts and interest rate hedging contracts in order to limit our exposure to fluctuating foreign currencies and interest rates.
During fiscal 2022, the Company entered into two treasury lock agreements with a total notional value of $500.0 million to manage its interest rate exposure to the anticipated issuance of fixed rate debt before December 2023. On February 13, 2023, the Company settled these treasury lock agreements and issued the 5.90% Bonds in the aggregate principal amount of $500.0 million, which resulted in the receipt of cash and a pre-tax gain of $37.4 million, which is being amortized to interest expense and recognized over the term of the 5.90% Bonds. See Note 12- Borrowings for further discussion relating to the terms of the 5.90% Bonds. The unrealized net gain on these instruments was $20.2 million and $20.9 million, net of tax, and is included in accumulated other comprehensive loss as of December 26, 2025 and September 26, 2025, respectively.
In fiscal 2020 we entered into interest rate swap agreements to manage the interest rate exposure on our variable rate loans. By entering into the swap agreements, the Company converted the variable rate based liabilities into fixed rate liabilities for a period of five to ten years. During the fiscal 2023 transition from LIBOR to SOFR, the terms of the swaps were amended accordingly and remained designated as cash-flow hedges in accordance with ASC 815, Derivatives and Hedging. As of December 26, 2025 and September 26, 2025, the Company has one ten-year outstanding instrument with a notional value of $200.0 million.
The fair value of the interest rate swap at December 26, 2025 and September 26, 2025 was $19.3 million and $20.5 million, respectively, included within miscellaneous other assets on the Consolidated Balance Sheet. The unrealized net gain on the interest rate swap as of December 26, 2025 and September 26, 2025 was $14.7 million and $15.6 million, respectively, net of tax, and was included in accumulated other comprehensive loss.
Additionally, the Company held foreign exchange forward contracts in currencies that support our operations, including Australian Dollar, British Pound and other currencies, with notional values of $439.8 million at December 26, 2025 and $491.9 million at September 26, 2025. The length of these contracts currently ranges from one to three months. The fair value of the foreign exchange contracts at December 26, 2025 was $1.9 million, of which $2.1 million is included within current assets and $(0.2) million is included within current liabilities on the Consolidated Balance Sheet as of December 26, 2025. The fair value of the contracts as of September 26, 2025 was $(0.3) million, of which $(2.3) million is included within current liabilities and $2.0 million is included within current assets on the Consolidated Balance Sheet as of September 26, 2025. Associated income statement impacts are included in miscellaneous income (expense) in the Consolidated Statements of Earnings for both periods.
In addition, on January 5, 2026, in connection with the PA Consulting Transaction, the Company entered into a foreign exchange forward contract with a notional value of $1.31 billion to manage its exposure to fluctuations in foreign currency exchange rates arising from its obligation to deliver the cash portion of the initial consideration payable in such transaction.
The fair value measurements of these derivatives are being made using Level 2 inputs under ASC 820, Fair Value Measurement, as the measurements are based on observable inputs other than quoted prices in active markets. We are
exposed to risk from credit-related losses resulting from nonperformance by counterparties to our financial instruments. We perform credit evaluations of our counterparties under forward exchange and interest rate contracts and expect all counterparties to meet their obligations. We have not experienced credit losses from our counterparties.
Leases
The Company’s right-of use assets and lease liabilities presented on the Consolidated Balance Sheets relate to real estate, project assets used in connection with long-term construction contracts, IT assets and vehicles. The Company’s lease obligations are primarily for the use of office space and are primarily operating leases. The respective components of lease expense are reflected in Selling, general and administrative expenses on the Consolidated Statements of Earnings for all periods presented.
Contractual Guarantees, Legal Proceedings, Claims, Investigations and Insurance
In the normal course of business, we make contractual commitments (some of which are supported by separate guarantees) and on occasion we are a party in a litigation or arbitration proceeding, such as the Consolidated JV Matter (as defined in our fiscal 2025 Annual Report on Form 10-K). The litigation or arbitration in which we are involved includes personal injury claims, professional liability claims and breach of contract claims. Where we provide a separate guarantee, it is strictly in support of the underlying contractual commitment. Guarantees take various forms including surety bonds required by law, or standby letters of credit ("LOC" and also referred to as “bank guarantees”) or corporate guarantees given to induce a party to enter into a contract with a subsidiary. Standby LOCs are also used as security for advance payments or in various other transactions. The guarantees have various expiration dates ranging from an arbitrary date to completion of our work (e.g., engineering only) to completion of the overall project. We record in the Consolidated Balance Sheets amounts representing our estimated liability relating to such guarantees, litigation and insurance claims. Guarantees are accounted for in accordance with ASC 460-10, Guarantees, at fair value at the inception of the guarantee.
At December 26, 2025 and September 26, 2025, the Company had issued and outstanding approximately $250.1 million and $217.0 million, respectively, in LOCs and $3.0 billion and $2.8 billion, respectively, in surety bonds. Of the outstanding LOC amount, $0.3 million has been issued under the Revolving Credit Facility and $249.8 million are issued under separate, committed and uncommitted letter-of-credit facilities.
We maintain insurance coverage for most insurable aspects of our business and operations. Our insurance programs have varying coverage limits depending upon the type of insurance and include certain conditions and exclusions which insurance companies may raise in response to any claim that is asserted by or against the Company. We have also elected to retain a portion of losses and liabilities that occur through using various deductibles, limits, and retentions under our insurance programs. As a result, we may be subject to a future liability for which we are only partially insured or completely uninsured. We intend to mitigate any such future liability by continuing to exercise prudent business judgment in negotiating the terms and conditions of the contracts which the Company enters with its clients. Our insurers are also subject to business risk and, as a result, one or more of them may be unable to fulfill their insurance obligations due to insolvency or otherwise.
Additionally, as a contractor providing services to the U.S. federal government, we are subject to many types of audits, investigations, and claims by, or on behalf of, the government including with respect to contract performance, pricing, cost allocations, procurement practices, labor practices, and socioeconomic obligations. Furthermore, our income, franchise, and similar tax returns and filings are also subject to audit and investigation by the Internal Revenue Service, most states within the United States, as well as by various government agencies representing jurisdictions outside the United States.
Our Consolidated Balance Sheets include amounts representing our probable estimated liability relating to such claims, guarantees, litigation, audits, and investigations. We perform an analysis to determine the level of reserves to establish for insurance-related claims that are known and have been asserted against us, as well as for insurance-related claims that are believed to have been incurred based on actuarial analysis but have not yet been reported to our claims administrators as of the respective balance sheet dates. We include any adjustments to such insurance reserves in our consolidated results of operations. Insurance recoveries are recorded as assets if recovery is probable and estimated liabilities are not reduced by expected insurance recoveries.
The Company believes, after consultation with counsel, that such guarantees, litigation, U.S. government contract-related audits, investigations and claims, and income tax audits and investigations should not have a material adverse effect on our consolidated financial statements, beyond amounts currently accrued.
On January 2, 2026, Jacobs entered into an Implementation Deed with PA Consulting, pursuant to which Jacobs UK Holdings Limited will acquire from shareholders of PA Consulting, other than Jacobs and its affiliates, all of the remaining issued share capital of PA Consulting owned by such shareholders in the PA Consulting Transaction. Jacobs has agreed to unconditionally and irrevocably guarantee to the other parties the performance and observance by Jacobs UK Holdings Limited of all its obligations, commitments, undertakings and warranties under the Implementation Deed. For further information, refer to Note 15- PA Consulting Redeemable Noncontrolling Interests.
v3.25.4
Segment Information
 3 Months Ended
Dec. 26, 2025
Segment Reporting [Abstract]  
Segment Information Segment Information
The Company's two operating segments are comprised of Infrastructure and Advanced Facilities ("I&AF") and its majority investment in PA Consulting. Subsequent to the Separation Transaction, the SpinCo businesses are now presented as discontinued operations for all periods and therefore not reflected in the segment disclosures below. For further information, refer to Note 14- Discontinued Operations.
The Company’s Chief Executive Officer is the Chief Operating Decision Maker (“CODM”) and evaluates the performance of and makes appropriate resource allocations to each of the segments. For purposes of the Company’s goodwill impairment testing, it has been determined that the Company’s operating segments are also its reporting units based on management’s conclusion that the components comprising each of its operating segments share similar economic characteristics and meet the aggregation criteria for reporting units in accordance with ASC 350, Intangibles-Goodwill and Other.
Financial information for each segment is reviewed by the CODM to assess performance and make decisions regarding the allocation of resources. The CODM evaluates the operating performance of our operating segments using segment operating profit. The Company incurs certain SG&A that relate to its business as a whole which are not allocated to the segments. The CODM does not review segment assets as a measure of segment performance.
The following tables present total revenues, direct cost of contracts, selling, general and administrative expenses and segment operating profit from continuing operations for each reportable segment (in thousands) and includes a reconciliation of segment operating profit to total U.S. GAAP operating profit by including certain corporate-level expenses, Restructuring and other charges (as defined in Note 16- Restructuring and Other Charges) and transaction and integration costs (in thousands) for the three months ended:
December 26, 2025
Infrastructure & Advanced FacilitiesPA ConsultingTotal
Revenues from External Customers$2,938,848 $354,433 $3,293,281 
Direct cost of contracts (1)
(2,293,163)(234,868)(2,528,031)
Selling, general and administrative expenses (1)
(430,945)(34,672)(465,617)
Segment Operating Profit$214,740 $84,893 $299,633 
Restructuring, Transaction and Other Charges (2)
(29,076)
Amortization of Intangible Assets(37,996)
Total U.S. GAAP Operating Profit$232,561 
Total Other (Expense) Income, net
(26,338)
Earnings from Continuing Operations Before Taxes$206,223 
(1)Direct cost of contracts and SG&A are considered to be significant segment expense categories as amounts align with, or are easily computable from, the segment-level information regularly provided to the CODM.
(2)
The three months ended December 26, 2025 included $2.2 million in restructuring and other charges relating to the Separation Transaction (primarily professional services and employee separation costs), as well as $1.8 million in restructuring and other charges relating to the PA Consulting Transaction (primarily professional services and dedicated internal personnel), and $22.7 million in charges for certain subsidiary level compensation based agreements.
December 27, 2024
Infrastructure & Advanced FacilitiesPA ConsultingTotal
Revenues from External Customers$2,626,208 $306,748 $2,932,956 
Direct cost of contracts (1)
(2,019,696)(191,993)(2,211,689)
Selling, general and administrative expenses (1)
(396,237)(48,017)(444,254)
Segment Operating Profit$210,275 $66,738 $277,013 
Restructuring, Transaction and Other Charges (2)
(29,934)
Amortization of Intangible Assets(38,661)
Total U.S. GAAP Operating Profit$208,418 
Total Other (Expense) Income, net (3)
(155,271)
Earnings from Continuing Operations Before Taxes$53,147 
(1)Direct cost of contracts and SG&A are considered to be significant segment expense categories as amounts align with, or are easily computable from, the segment-level information regularly provided to the CODM.
(2)
The three months ended December 27, 2024 included $15.0 million in restructuring and other charges relating to the Separation Transaction (primarily professional services and employee separation costs), $6.0 million in charges for certain subsidiary level compensation based agreements as well as $7.9 million in charges associated with the Company's TSA with Amentum.
(3)
The three months ended December 27, 2024 included $145.2 million in mark-to-market losses associated with our investment in Amentum stock in connection with the Separation Transaction.
v3.25.4
Insider Trading Arrangements
 3 Months Ended
Dec. 26, 2025
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.25.4
Use of Estimates and Assumptions (Policies)
 3 Months Ended
Dec. 26, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Use of Estimates and Assumptions Use of Estimates and Assumptions
The preparation of financial statements in conformity with U.S. GAAP requires us to employ estimates and make assumptions that affect the reported amounts of certain assets and liabilities; the revenues and expenses reported for the periods covered by the financial statements; and certain amounts disclosed in these Notes to the Consolidated Financial Statements. Although such estimates and assumptions are based on management’s most recent assessment of the underlying facts and circumstances utilizing the most current information available and past experience, actual results could differ significantly from those estimates and assumptions. Our estimates, judgments and assumptions are evaluated periodically and adjusted accordingly.
Fair Value and Fair Value Measurements Fair Value and Fair Value Measurements
Certain amounts included in the accompanying consolidated financial statements are presented at fair value. Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants as of the date fair value is determined (the “measurement date”). When determining fair value, we consider the principal or most advantageous market in which we would transact, and we consider only those assumptions we believe a typical market participant would consider when pricing an asset or liability. In measuring fair value, we use the following inputs in the order of priority indicated:
Level 1 - Quoted prices in active markets for identical assets or liabilities.
Level 2 - Observable inputs other than quoted prices in active markets included in Level 1, such as (i) quoted prices for similar assets or liabilities; (ii) quoted prices in markets that have insufficient volume or infrequent transactions (e.g., less active markets); and (iii) model-driven valuations in which all significant inputs are observable or can be derived principally from, or corroborated with, observable market data for substantially the full term of the asset or liability.
Level 3 - Unobservable inputs to the valuation methodology that are significant to the fair value measurement.
Please refer to Note 2- Significant Accounting Policies of Notes to Consolidated Financial Statements included in our 2025 Form 10-K for a more complete discussion of the various items within the consolidated financial statements measured at fair value and the methods used to determine fair value. Please also refer to Note 17- Commitments and Contingencies and Derivative Financial Instruments for discussion regarding the Company's derivative instruments and Note 14- Discontinued Operations for discussion regarding the Company's investment in Amentum common shares.
The net carrying amounts of cash and cash equivalents, trade receivables and payables and short-term debt approximate fair value due to the short-term nature of these instruments. See Note 12- Borrowings for a discussion of the fair value of long-term debt.
New Accounting Pronouncements New Accounting Pronouncements
ASU 2025-12, Accounting Standards Codification ("Codification") Improvements, represents changes to the Codification that clarify, correct errors or make minor improvements to U.S. GAAP. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods, with early adoption permitted. ASU 2025-12 will be effective for the Company in first quarter of fiscal 2028. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements, clarifies the applicability of Topic 270, the types of interim reporting, and the form and content of interim financial statements in accordance with U.S. GAAP, as well as includes a disclosure principle that requires entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. The amendments in this update are effective for interim reporting periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. ASU 2025-11 will be effective for the Company in first quarter of fiscal 2029. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-09, Derivatives and Hedging, (Topic 815): Hedge Accounting Improvements, clarifies certain aspects of the guidance on hedge accounting to address several incremental hedge accounting issues arising from the global reference rate reform initiative. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods, with early adoption permitted. ASU 2025-09 will be effective for the Company in first quarter of fiscal 2028. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-05, Financial Instruments—Credit Losses, (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, provides all entities with a practical expedient option when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under Topic 606. The amendments in this update are effective for annual reporting periods beginning after December 15, 2025, including interim periods within those annual periods, with early adoption permitted. ASU 2025-05 will be effective for the Company in first quarter of fiscal 2027. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2025-03, Business Combinations, (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity, clarifies the guidance in determining the accounting acquirer in a business combination effected primarily by exchanging equity interests when the acquiree is a variable interest entity that meets the definition of a business. The standard is effective for fiscal years beginning after December 15, 2026, including interim periods within those fiscal years. Early adoption is permitted, and the standard is to be applied prospectively to acquisitions after the adoption date. ASU 2025-03 will be effective for the Company in the first quarter of fiscal 2028. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2024-03, Income Statement, (Subtopic 220-40): Reporting Comprehensive Income - Disaggregation of Income Statement Expenses, requires disclosure, in the notes to financial statements, of specified information about certain costs and expenses. The amendments in this update also provide guidance on the disaggregation disclosure requirements for certain expense captions presented on the face of an entity’s income statement and provide guidance on the disclosure of selling expenses. The amendments in ASU 2024-03 are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. ASU 2024-03 will be effective for the Company in the fourth quarter of fiscal 2027. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2023-09, Income Taxes, (Topic 740): Improvements to Income Tax Disclosures, provides qualitative and quantitative updates to the Company's effective income tax rate reconciliation and income taxes paid disclosures, among others, in order to enhance the transparency of income tax disclosures, including consistent categories and greater disaggregation of information in the rate reconciliation and disaggregation by jurisdiction of income taxes paid. The amendments in ASU 2023-09 are effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. ASU 2023-09 will be effective for the Company in the fourth quarter of fiscal 2026. The Company is evaluating the impact of this guidance on its consolidated financial statements and related disclosures.
ASU 2023-06, Disclosure Improvements: Amendments - Codification Amendments in Response to the Disclosure Update and Simplification Initiative of the Securities and Exchange Commission ("SEC"). The Financial Accounting Standards Board issued the standard to introduce changes to U.S. GAAP that originate in either SEC Regulation S-X or S-K, which are rules about the form and content of financial reports filed with the SEC. The provisions of the standard are contingent upon instances where the SEC removes the related disclosure provisions from Regulation S-X and S-K. ASU 2023-06 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. ASU 2023-06 will be effective for the Company in the fourth quarter of fiscal 2026. The Company does not expect that the application of this standard will have a material impact on our consolidated financial statements and related disclosures.
v3.25.4
Revenue Accounting for Contracts (Tables)
 3 Months Ended
Dec. 26, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
The following table further disaggregates our revenue by geographic area for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Revenues:
United States$2,059,773 $1,812,830 
Europe788,214 712,567 
Canada61,131 58,972 
Asia32,685 33,369 
India33,746 36,935 
Australia and New Zealand159,790 140,032 
Middle East and Africa157,942 138,251 
Total$3,293,281 $2,932,956 
v3.25.4
Earnings Per Share and Certain Related Information (Tables)
 3 Months Ended
Dec. 26, 2025
Earnings Per Share Reconciliation [Abstract]  
Schedule of Earnings Per Share
The following table reconciles the numerator and denominator used to compute basic EPS to the numerator and denominator used to compute diluted EPS for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Numerator for Basic and Diluted EPS:
Net Earnings (Loss) Attributable to Jacobs from Continuing Operations$124,954 $(17,129)
Redeemable Noncontrolling interests redemption value adjustment (See Note 15 - PA Consulting Redeemable Noncontrolling Interests)
7,688 4,568 
Net earnings (loss) from continuing operations allocated to common stock for EPS calculation$132,642 $(12,561)
Net earnings (loss) from discontinued operations allocated to common stock for EPS calculation$554 $(1,001)
Net earnings (loss) allocated to common stock for EPS calculation$133,196 $(13,562)
Denominator for Basic and Diluted EPS:
Shares used for calculating basic EPS attributable to common stock118,594 124,055 
Effect of dilutive securities:
Stock compensation plans (1)412 — 
Shares used for calculating diluted EPS attributable to common stock119,006 124,055 
Net Earnings Per Share:
Basic Net Earnings (Loss) from Continuing Operations Per Share$1.12 $(0.10)
Basic Net Earnings (Loss) from Discontinued Operations Per Share$— $(0.01)
Basic Earnings Per Share$1.12 $(0.11)
Diluted Net Earnings (Loss) from Continuing Operations Per Share$1.11 $(0.10)
Diluted Net Earnings (Loss) from Discontinued Operations Per Share$— $(0.01)
Diluted Earnings (Loss) Per Share$1.12 $(0.11)
Note: Per share amounts may not add due to rounding.
(1)For the three months ended December 27, 2024, because Net Earnings (Loss) Attributable to Jacobs from Continuing Operations was a loss, the effect of antidilutive securities of 576 was excluded from the denominator in calculating diluted EPS.
Schedule of Share Repurchases
The following table summarizes repurchase activity for fiscal 2026 under the 2025 Repurchase Authorization for the three months ended December 26, 2025:
Amount Authorized
(2025 Repurchase Authorization)
Average Price Per Share (1)Total Shares Repurchased and Retired
$1,500,000,000$142.051,774,592
(1)Includes commissions paid and excise tax due under the Inflation Reduction Act of 2022 and calculated at the average price per share.
Schedule of Dividends Declared Dividends paid through the first fiscal quarter of 2026 and the preceding fiscal year are as follows:
Declaration DateRecord DatePayment DateCash Amount (per share)
November 18, 2025December 2, 2025December 19, 2025$0.32
July 31, 2025August 22, 2025September 19, 2025$0.32
April 30, 2025May 23, 2025June 20, 2025$0.32
January 30, 2025February 21, 2025March 21, 2025$0.32
September 26, 2024October 25, 2024November 22, 2024$0.29
v3.25.4
Goodwill and Intangibles (Tables)
 3 Months Ended
Dec. 26, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Carrying Value of Goodwill by Reportable Segment Appearing in Accompanying Consolidated Balance Sheets
The carrying value of goodwill appearing in the accompanying Consolidated Balance Sheets at December 26, 2025 and September 26, 2025 was as follows (in thousands):
Infrastructure & Advanced FacilitiesPA ConsultingTotal
Balance September 26, 2025$3,351,490 $1,429,328 $4,780,818 
Foreign currency translation adjustments and other 2,249 10,570 12,819 
Balance December 26, 2025$3,353,739 $1,439,898 $4,793,637 
Schedule of Acquired Intangibles in Accompanying Consolidated Balance Sheets
The following table provides certain information related to the Company’s acquired intangibles in the accompanying Consolidated Balance Sheets at December 26, 2025 and September 26, 2025 (in thousands):
Customer Relationships, Contracts and BacklogDeveloped TechnologyTrade NamesTotal
Balance September 26, 2025$521,275 $19,524 $176,871 $717,670 
Amortization(31,269)(2,998)(3,729)(37,996)
Foreign currency translation adjustments and other2,766 1 1,207 3,974 
Balance December 26, 2025$492,772 $16,527 $174,349 $683,648 
Schedule of Estimated Amortization Expense of Intangible Assets
The following table presents estimated amortization expense of intangible assets for the remainder of fiscal 2026 and for the succeeding years.
Fiscal Year(in millions)
2026$101.3 
2027109.6 
202899.2 
202999.2 
203076.8 
203157.3 
Thereafter140.2 
Total$683.6 
v3.25.4
Receivables and Contract Assets (Tables)
 3 Months Ended
Dec. 26, 2025
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]  
Schedule of Receivables
The following table presents the components of receivables and contract assets appearing in the accompanying Consolidated Balance Sheets at December 26, 2025 and September 26, 2025, as well as certain other related information (in thousands):
December 26, 2025September 26, 2025
Components of receivables and contract assets:
Amounts billed, net$1,567,508 $1,386,253 
Unbilled receivables and other1,058,553 1,115,286 
Contract assets433,708 487,528 
Total receivables and contract assets, net$3,059,769 $2,989,067 
v3.25.4
Accumulated Other Comprehensive Income (Loss) (Tables)
 3 Months Ended
Dec. 26, 2025
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Loss After-Tax
The following table presents the Company's roll forward of accumulated other comprehensive loss after-tax as of December 26, 2025 (in thousands):
Change in Net Pension Obligation
Foreign Currency Translation Adjustments
Gain/(Loss) on Cash Flow Hedges (1)
Total
Balance at September 26, 2025
$(372,910)$(373,969)$36,469 $(710,410)
Other comprehensive income 643 25,517 235 26,395 
Reclassifications from accumulated other comprehensive loss(232)— (1,815)(2,047)
Balance at December 26, 2025
$(372,499)$(348,452)$34,889 $(686,062)

(1) Included in the Company’s cumulative net unrealized gains from interest rate and cross currency swaps recorded in accumulated other comprehensive loss as of December 26, 2025 were approximately $6.2 million in unrealized gains, net of taxes, which are expected to be realized in earnings during the twelve months subsequent to December 26, 2025.
v3.25.4
Borrowings (Tables)
 3 Months Ended
Dec. 26, 2025
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
At December 26, 2025 and September 26, 2025, long-term debt consisted of the following (principal amounts in thousands):
Interest RateMaturityDecember 26, 2025September 26, 2025
Revolving Credit FacilityBenchmark + applicable margin (1)February 2028$640,000 $395,000 
2025 Term Loan Facility - USD Portion
Benchmark + applicable margin (2)
March 2027200,000 200,000 
2025 Term Loan Facility - GBP Portion
Benchmark + applicable margin (2)
March 2027554,320 550,261 
Fixed-rate:
5.9% Bonds, due 2033
5.9% (3)
March 2033500,000 500,000 
6.35% Bonds, due 2028
6.35%
August 2028600,000 600,000 
Less: Deferred Financing Fees(8,298)(8,805)
Total Long-term debt, net$2,486,022 $2,236,456 
(1)The U.S. dollar denominated borrowings under the Revolving Credit Facility bear interest at either a SOFR rate plus a margin of between 0.975% and 1.725% or a base rate plus a margin of between 0% and 0.625% depending on the Company’s Consolidated Leverage Ratio or Debt Rating (each as defined in the Revolving Credit Facility (defined below)). The interest rate under the Revolving Credit Agreement also incorporates a modest sustainability-linked pricing adjustment, which resulted in a favorable interest rate adjustment to the Company in February 2025. The applicable SOFR rates, including applicable margins, at December 26, 2025 and September 26, 2025 were approximately 5.04% and 5.37%. Borrowings denominated in British pounds bear interest at an adjusted SONIA rate plus a margin of between 0.908% and 1.658%. There were no amounts drawn in British pounds as of December 26, 2025.
(2)Borrowings under the 2025 Term Loan Facility bear interest at either a SONIA rate or term SOFR rate plus a margin of between 0.975% and 1.60% or a base rate plus a margin of between 0% and 0.50% depending on the Company’s Consolidated Leverage Ratio or Debt Rating. The applicable SOFR and SONIA rates, including applicable margins, at December 26, 2025 and September 26, 2025 were approximately 5.02% and 5.42% for borrowings denominated in U.S. dollars and 4.72% and 4.97% for borrowings denominated in British pounds.
(3)The interest rate payable on the 5.90% Bonds (as defined below) may be increased by an additional 12.5 basis points on each of September 1, 2028 and September 1, 2030, based on whether or not the Company achieves the key performance indicators set forth in the First Supplemental Indenture (as defined below). Each key performance indicator is independent of the other. Therefore, we may achieve one, both, or neither.
v3.25.4
Pension and Other Postretirement Benefit Plans (Tables)
 3 Months Ended
Dec. 26, 2025
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Pension Benefit Expense Recognized in Earnings
The following table presents the components of net periodic pension benefit expense recognized in earnings during the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Component:
Service cost$2,838 $2,499 
Interest cost21,880 20,402 
Expected return on plan assets(27,522)(24,687)
Amortization of previously unrecognized items3,380 3,002 
Total net periodic pension benefit expense recognized$576 $1,216 
Schedule of Certain Information Regarding Cash Contributions
The following table presents certain information regarding the Company’s cash contributions to our pension plans for fiscal 2026 (in thousands):
Cash contributions made during the first three months of fiscal 2026
$4,011 
Cash contributions projected for the remainder of fiscal 2026
9,839 
Total$13,850 
v3.25.4
Discontinued Operations (Tables)
 3 Months Ended
Dec. 26, 2025
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Disposal Groups, Including Discontinued Operations The following table represents earnings from discontinued operations, net of tax (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Revenues$— $64 
Direct cost of contracts— (60)
Gross (loss) profit
— 4 
Selling, general and administrative expense (1)
487 (1,348)
Operating (Loss) Profit
487 (1,344)
Other income, net
— — 
(Loss) Earnings Before Taxes from Discontinued Operations
487 (1,344)
Income Tax Benefit (Expense)
67 343 
Net (Loss) Earnings of the Group from Discontinued Operations
554 (1,001)
Net Earnings Attributable to Noncontrolling Interests from Discontinued Operations
— — 
Net (Loss) Earnings Attributable to Jacobs from Discontinued Operations
$554 $(1,001)
(1)Selling, general and administrative expenses for the three months ended December 26, 2025 were favorably impacted by $0.8 million from an indemnity reserve in respect of an ongoing non-U.S. tax matter related to an entity that was part of the separated SpinCo Business.
v3.25.4
PA Consulting Redeemable Noncontrolling Interests (Tables)
 3 Months Ended
Dec. 26, 2025
PA Consulting Group Limited  
Business Combination [Line Items]  
Schedule of Redeemable Noncontrolling Interest
Changes in the redeemable noncontrolling interests during the three months ended December 26, 2025 are as follows (in thousands):
Balance at September 26, 2025$1,018,694 
Accrued Preferred Dividend to Preference Shareholders21,570 
Attribution of Preferred Dividend to Common Shareholders(21,570)
Net earnings attributable to redeemable noncontrolling interests to Common Shareholders5,720 
Redeemable Noncontrolling interests redemption value adjustment65,590 
Repurchase of redeemable noncontrolling interests(622)
Cumulative translation adjustments and other
3,598 
Balance at December 26, 2025$1,092,980 
v3.25.4
Restructuring and Other Charges (Tables)
 3 Months Ended
Dec. 26, 2025
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring and Other Charges Impacts on Reportable Segment Income by Line of Business
The following table summarizes the impacts of the Restructuring and other charges by operating segment for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
Infrastructure & Advanced Facilities
$2,242 $14,976 
PA Consulting1,757 (236)
Total (1)
$3,999 $14,740 

(1)The three months ended December 26, 2025 and December 27, 2024 included approximately $2.2 million and $15.0 million, respectively, in restructuring and other charges relating to the Separation Transaction (primarily professional services and employee separation costs). The three months ended December 26, 2025 included approximately $1.8 million in restructuring and other charges relating to the PA Consulting Transaction (primarily professional services and dedicated internal personnel), which were included in operating profit in the Company's Consolidated Statement of Earnings (mainly in SG&A).
Schedule of Restructuring and Other Activities
The activity in the Company’s accruals for Restructuring and other charges for the three months ended December 26, 2025 is as follows (in thousands):
Balance at September 26, 2025
$14,516 
Net Charges
3,999 
Payments and other(14,155)
Balance at December 26, 2025$4,360 
Schedule of Restructuring and Other Activities by Major Type of Costs
The following table summarizes the Restructuring and other charges by major type of costs for the three months ended December 26, 2025 and December 27, 2024 (in thousands):
Three Months Ended
December 26, 2025December 27, 2024
 Voluntary and Involuntary Termination $1,709 $385 
Outside Services (1)
1,176 11,412 
Other (2)
1,114 2,943 
Total
$3,999 $14,740 
(1)    Amounts in the three months ended December 26, 2025 are comprised of professional services relating to the Separation Transaction and PA Consulting Transaction. Amounts in the three months ended December 27, 2024 are comprised of professional services relating to the Separation Transaction.
(2)    Amounts in the three months ended December 26, 2025 are comprised of charges relating to the PA Consulting Transaction and Separation Transaction. Amounts in the three months ended December 27, 2024 are comprised of charges relating to the Separation Transaction.
Schedule of Cumulative Amounts Incurred for Restructuring and Other Activities Costs
Cumulative amounts incurred to date for restructuring and other programs that were active as of December 26, 2025 by each major type of cost are as follows (in thousands):
 Voluntary and Involuntary Termination $110,751 
Outside Services159,651 
Other (1)
3,925 
Total$274,327 
(1)Cumulative amount includes a $35.2 million realized gain on interest rate swaps settled during the fourth quarter of fiscal 2024.
v3.25.4
Segment Information (Tables)
 3 Months Ended
Dec. 26, 2025
Segment Reporting [Abstract]  
Schedule of Total Revenues, Segment Operating Profit and Total Asset for Reporting Segment
The following tables present total revenues, direct cost of contracts, selling, general and administrative expenses and segment operating profit from continuing operations for each reportable segment (in thousands) and includes a reconciliation of segment operating profit to total U.S. GAAP operating profit by including certain corporate-level expenses, Restructuring and other charges (as defined in Note 16- Restructuring and Other Charges) and transaction and integration costs (in thousands) for the three months ended:
December 26, 2025
Infrastructure & Advanced FacilitiesPA ConsultingTotal
Revenues from External Customers$2,938,848 $354,433 $3,293,281 
Direct cost of contracts (1)
(2,293,163)(234,868)(2,528,031)
Selling, general and administrative expenses (1)
(430,945)(34,672)(465,617)
Segment Operating Profit$214,740 $84,893 $299,633 
Restructuring, Transaction and Other Charges (2)
(29,076)
Amortization of Intangible Assets(37,996)
Total U.S. GAAP Operating Profit$232,561 
Total Other (Expense) Income, net
(26,338)
Earnings from Continuing Operations Before Taxes$206,223 
(1)Direct cost of contracts and SG&A are considered to be significant segment expense categories as amounts align with, or are easily computable from, the segment-level information regularly provided to the CODM.
(2)
The three months ended December 26, 2025 included $2.2 million in restructuring and other charges relating to the Separation Transaction (primarily professional services and employee separation costs), as well as $1.8 million in restructuring and other charges relating to the PA Consulting Transaction (primarily professional services and dedicated internal personnel), and $22.7 million in charges for certain subsidiary level compensation based agreements.
December 27, 2024
Infrastructure & Advanced FacilitiesPA ConsultingTotal
Revenues from External Customers$2,626,208 $306,748 $2,932,956 
Direct cost of contracts (1)
(2,019,696)(191,993)(2,211,689)
Selling, general and administrative expenses (1)
(396,237)(48,017)(444,254)
Segment Operating Profit$210,275 $66,738 $277,013 
Restructuring, Transaction and Other Charges (2)
(29,934)
Amortization of Intangible Assets(38,661)
Total U.S. GAAP Operating Profit$208,418 
Total Other (Expense) Income, net (3)
(155,271)
Earnings from Continuing Operations Before Taxes$53,147 
(1)Direct cost of contracts and SG&A are considered to be significant segment expense categories as amounts align with, or are easily computable from, the segment-level information regularly provided to the CODM.
(2)
The three months ended December 27, 2024 included $15.0 million in restructuring and other charges relating to the Separation Transaction (primarily professional services and employee separation costs), $6.0 million in charges for certain subsidiary level compensation based agreements as well as $7.9 million in charges associated with the Company's TSA with Amentum.
(3)
The three months ended December 27, 2024 included $145.2 million in mark-to-market losses associated with our investment in Amentum stock in connection with the Separation Transaction.
v3.25.4
Basis of Presentation (Details) - $ / shares
Sep. 27, 2024
Dec. 26, 2025
Sep. 26, 2025
Business Combination [Line Items]      
Common stock, par value (in dollars per share) $ 1.00 $ 1 $ 1
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | SpinCo Business      
Business Combination [Line Items]      
Stock issued during period, spinoff transaction ( in shares) 124,084,108    
Common stock, par value (in dollars per share) $ 0.01    
Shares issued during period, spinoff, conversion ratio (in shares) 1    
v3.25.4
Revenue Accounting for Contracts - Schedule of Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax $ 3,293,281 $ 2,932,956
United States    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax 2,059,773 1,812,830
Europe    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax 788,214 712,567
Canada    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax 61,131 58,972
Asia    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax 32,685 33,369
India    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax 33,746 36,935
Australia and New Zealand    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax 159,790 140,032
Middle East and Africa    
Disaggregation of Revenue [Line Items]    
Revenue from Contract with Customer, Including Assessed Tax $ 157,942 $ 138,251
v3.25.4
Revenue Accounting for Contracts - Contract Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Revenue from Contract with Customer [Abstract]    
Revenue recognized included in contract liability $ 448.8 $ 410.7
v3.25.4
Revenue Accounting for Contracts - Remaining Performance Obligations (Details)
$ in Billions
Dec. 26, 2025
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, amounts $ 18.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-12-27  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, percentage 46.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months) 12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-12-28  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, percentage 54.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months)
v3.25.4
Earnings Per Share and Certain Related Information - Schedule of Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Numerator for Basic and Diluted EPS:    
Net Earnings (Loss) Attributable to Jacobs from Continuing Operations $ 124,954 $ (17,129)
Redeemable Noncontrolling interests redemption value adjustment (See Note 15 - PA Consulting Redeemable Noncontrolling Interests) 7,688 4,568
Net earnings (loss) from continuing operations allocated to common stock for EPS calculation 132,642 (12,561)
Net earnings (loss) from discontinued operations allocated to common stock for EPS calculation 554 (1,001)
Net earnings (loss) allocated to common stock for EPS calculation $ 133,196 $ (13,562)
Denominator for Basic and Diluted EPS:    
Shares used for calculating basic EPS attributable to common stock (in shares) 118,594,000 124,055,000
Effect of dilutive securities:    
Stock compensation plans (in shares) 412,000 0
Shares used for calculating diluted EPS attributable to common stock (in shares) 119,006,000 124,055,000
Net Earnings Per Share:    
Basic Net Earnings (Loss) from Continuing Operations Per Share (in dollars per share) $ 1.12 $ (0.10)
Basic Net (Loss) Earnings from Discontinued Operations Per Share (in dollars per share) 0 (0.01)
Basic Earnings (Loss) Per Share (in dollars per share) 1.12 (0.11)
Diluted Earnings (Loss) Per Share    
Diluted Net Earnings (Loss) from Continuing Operations Per Share (in dollars per share) 1.11 (0.10)
Diluted Net (Loss) from Discontinued Operations Per Share (in dollars per share) 0 (0.01)
Diluted Earnings (Loss) Per Share (in dollars per share) $ 1.12 $ (0.11)
Antidilutive securities excluded from computation of EPS (in shares)   576
v3.25.4
Earnings Per Share and Certain Related Information - Narrative (Details) - USD ($)
 3 Months Ended
Jan. 29, 2026
Dec. 26, 2025
Sep. 26, 2025
Jun. 27, 2025
Mar. 28, 2025
Sep. 27, 2024
Jan. 30, 2025
Jan. 25, 2023
Class of Stock [Line Items]                
Dividend declared (in dollars per share)   $ 0.32 $ 0.32 $ 0.32 $ 0.32 $ 0.29    
Subsequent Event                
Class of Stock [Line Items]                
Dividend declared (in dollars per share) $ 0.36              
2023 Stock Repurchase Program                
Class of Stock [Line Items]                
Amount authorized to be repurchased               $ 1,000,000,000.0
2025 Stock Repurchase Program                
Class of Stock [Line Items]                
Amount authorized to be repurchased   $ 1,500,000,000         $ 1,500,000,000  
Remaining authorized repurchase amount   $ 966,200,000            
v3.25.4
Earnings Per Share and Certain Related Information - Schedule of Share Repurchases (Details) - 2025 Stock Repurchase Program - USD ($)
 3 Months Ended
Dec. 26, 2025
Jan. 30, 2025
Class of Stock [Line Items]    
Amount Authorized $ 1,500,000,000 $ 1,500,000,000
Average Price Per Share (in dollars per share) $ 142.05  
Total Shares Repurchased and Retired (in shares) 1,774,592  
v3.25.4
Earnings Per Share and Certain Related Information - Schedule of Dividends (Details) - $ / shares
 3 Months Ended
Dec. 26, 2025
Sep. 26, 2025
Jun. 27, 2025
Mar. 28, 2025
Sep. 27, 2024
Earnings Per Share Reconciliation [Abstract]          
Dividend declared (in dollars per share) $ 0.32 $ 0.32 $ 0.32 $ 0.32 $ 0.29
v3.25.4
Goodwill and Intangibles - Schedule of Carrying Value of Goodwill by Reportable Segment Appearing in Accompanying Consolidated Balance Sheets (Details)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
USD ($)
Goodwill [Roll Forward]  
Balance at the beginning of the period $ 4,780,818
Foreign currency translation adjustments and other 12,819
Balance at the end of the period 4,793,637
Infrastructure & Advanced Facilities  
Goodwill [Roll Forward]  
Balance at the beginning of the period 3,351,490
Foreign currency translation adjustments and other 2,249
Balance at the end of the period 3,353,739
PA Consulting  
Goodwill [Roll Forward]  
Balance at the beginning of the period 1,429,328
Foreign currency translation adjustments and other 10,570
Balance at the end of the period $ 1,439,898
v3.25.4
Goodwill and Intangibles - Schedule of Acquired Intangibles in Accompanying Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Finite-lived Intangible Assets [Roll Forward]    
Beginning balance $ 717,670  
Amortization (37,996) $ (38,661)
Foreign currency translation adjustments and other 3,974  
Ending balance 683,648  
Customer Relationships, Contracts and Backlog    
Finite-lived Intangible Assets [Roll Forward]    
Beginning balance 521,275  
Amortization (31,269)  
Foreign currency translation adjustments and other 2,766  
Ending balance 492,772  
Developed Technology    
Finite-lived Intangible Assets [Roll Forward]    
Beginning balance 19,524  
Amortization (2,998)  
Foreign currency translation adjustments and other 1  
Ending balance 16,527  
Trade Names    
Finite-lived Intangible Assets [Roll Forward]    
Beginning balance 176,871  
Amortization (3,729)  
Foreign currency translation adjustments and other 1,207  
Ending balance $ 174,349  
v3.25.4
Goodwill and Intangibles - Schedule of Estimated Amortization Expense of Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 26, 2025
Sep. 26, 2025
Goodwill and Intangible Assets Disclosure [Abstract]    
2026 $ 101,300  
2027 109,600  
2028 99,200  
2029 99,200  
2030 76,800  
2031 57,300  
Thereafter 140,200  
Total $ 683,648 $ 717,670
v3.25.4
Receivables and Contract Assets (Details) - USD ($)
$ in Thousands
Dec. 26, 2025
Sep. 26, 2025
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]    
Amounts billed, net $ 1,567,508 $ 1,386,253
Unbilled receivables and other 1,058,553 1,115,286
Contract assets 433,708 487,528
Total receivables and contract assets, net $ 3,059,769 $ 2,989,067
v3.25.4
Accumulated Other Comprehensive Income (Loss) (Details)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Beginning balance $ 3,647,905
Ending balance 3,448,231
Interest rate and cross currency swap gains to be reclassified during the next 12 months 6,200
Total  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Beginning balance (710,410)
Other comprehensive income 26,395
Reclassifications from accumulated other comprehensive loss (2,047)
Ending balance (686,062)
Change in Net Pension Obligation  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Beginning balance (372,910)
Other comprehensive income 643
Reclassifications from accumulated other comprehensive loss (232)
Ending balance (372,499)
Foreign Currency Translation Adjustment  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Beginning balance (373,969)
Other comprehensive income 25,517
Reclassifications from accumulated other comprehensive loss 0
Ending balance (348,452)
Gain/(Loss) on Cash Flow Hedges  
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]  
Beginning balance 36,469
Other comprehensive income 235
Reclassifications from accumulated other comprehensive loss (1,815)
Ending balance $ 34,889
v3.25.4
Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Income Tax Disclosure [Abstract]    
Effective income tax rate (as a percent) 35.50% 107.50%
U.S tax unfavorable tax impacts $ 16.6  
Nondeductible expense, investment loss   $ 37.0
State and local income taxes 5.8 5.4
Foreign income tax rate differential $ 4.6 $ 4.9
v3.25.4
Joint Ventures, VIEs and Other Investments (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Sep. 26, 2025
Variable Interest Entity [Line Items]      
Assets $ 11,614,495   $ 11,252,535
Net (loss) income from equity method investments 3,245 $ 2,236  
Variable Interest Entity, Primary Beneficiary      
Variable Interest Entity [Line Items]      
Assets 155,900   163,400
Consolidated liabilities 140,900   144,700
VIE, not primary beneficiary      
Variable Interest Entity [Line Items]      
Assets 146,700   143,900
Consolidated liabilities 138,600   131,900
Equity method investments 39,300   36,300
Net (loss) income from equity method investments 4,200 $ 3,700  
Accounts receivable from unconsolidated joint ventures accounted for under the equity method $ 12,800   $ 13,600
v3.25.4
Borrowings - Schedule of Long-term Debt (Details)
$ in Thousands
 3 Months Ended
Mar. 27, 2025
Aug. 18, 2023
Feb. 16, 2023
Dec. 26, 2025
USD ($)
Dec. 26, 2025
GBP (£)
Sep. 26, 2025
USD ($)
Debt Instrument [Line Items]            
Long-term debt       $ 2,486,022   $ 2,236,456
Less: Deferred Financing Fees       (8,298)   (8,805)
2025 Term Loan Facility - USD Portion            
Debt Instrument [Line Items]            
Long-term debt       200,000   200,000
2025 Term Loan Facility - GBP Portion            
Debt Instrument [Line Items]            
Long-term debt       554,320   550,261
5.90% Bonds | Senior Notes            
Debt Instrument [Line Items]            
Long-term debt       $ 500,000   500,000
Interest rate (as a percent)     5.90% 5.90% 5.90%  
Interest rate, increase (decrease) over period (as a percent)     0.35%      
5.90% Bonds | Senior Notes | First Step Up Date            
Debt Instrument [Line Items]            
Interest rate (as a percent)       5.90% 5.90%  
Interest rate, increase (decrease) over period (as a percent)       0.125%    
6.35% Bonds | Senior Notes            
Debt Instrument [Line Items]            
Long-term debt       $ 600,000   600,000
Interest rate (as a percent)   6.35%   6.35% 6.35%  
Interest rate, increase (decrease) over period (as a percent)   0.30%        
Revolving Credit Facility            
Debt Instrument [Line Items]            
Long-term debt       $ 640,000 £ 0 $ 395,000
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)            
Debt Instrument [Line Items]            
Effective interest rate (as a percent)       5.04% 5.04%  
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Minimum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent)       0.975%    
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Maximum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent)       1.725%    
Revolving Credit Facility | Base Rate | Minimum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent)       0.00%    
Revolving Credit Facility | Base Rate | Maximum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent)       0.625%    
Revolving Credit Facility | London Interbank Offered Rate (LIBOR)            
Debt Instrument [Line Items]            
Effective interest rate (as a percent)           5.37%
Revolving Credit Facility | Sterling Overnight Interbank Average Rate (SONIA) | Minimum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent)       0.908%    
Revolving Credit Facility | Sterling Overnight Interbank Average Rate (SONIA) | Maximum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent)       1.658%    
Revolving Credit Facility | 2025 Term Loan Facility - USD Portion            
Debt Instrument [Line Items]            
Effective interest rate (as a percent)       5.02% 5.02% 5.42%
Revolving Credit Facility | 2025 Term Loan Facility - GBP Portion            
Debt Instrument [Line Items]            
Effective interest rate (as a percent)       4.72% 4.72% 4.97%
Revolving Credit Facility | 2025 Term Loan Facility | Secured Overnight Financing Rate (SOFR) | Minimum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent) 0.975%          
Revolving Credit Facility | 2025 Term Loan Facility | Secured Overnight Financing Rate (SOFR) | Maximum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent) 1.60%          
Revolving Credit Facility | 2025 Term Loan Facility | Base Rate | Minimum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent) 0.00%          
Revolving Credit Facility | 2025 Term Loan Facility | Base Rate | Maximum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate (as a percent) 0.50%          
v3.25.4
Borrowings - Narrative (Details)
$ in Thousands, £ in Millions, shares in Millions
 3 Months Ended
Mar. 27, 2025
USD ($)
Mar. 27, 2025
GBP (£)
Mar. 13, 2025
USD ($)
shares
Aug. 18, 2023
USD ($)
Feb. 16, 2023
USD ($)
Dec. 26, 2025
USD ($)
Dec. 27, 2024
USD ($)
Sep. 26, 2025
USD ($)
Mar. 27, 2025
GBP (£)
Mar. 13, 2025
GBP (£)
Feb. 06, 2023
USD ($)
Debt Instrument [Line Items]                      
Proceeds from long-term borrowings           $ 719,000 $ 589,000        
Letter of Credit                      
Debt Instrument [Line Items]                      
Credit facility, maximum borrowing capacity                     $ 400,000
Sub Facility Of Swing Line Loans                      
Debt Instrument [Line Items]                      
Credit facility, maximum borrowing capacity                     100,000
5.90% Bonds | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate (as a percent)         5.90% 5.90%          
Long-term debt, fair value           $ 527,400          
Aggregate principal amount         $ 500,000            
Interest rate, increase (decrease) over period (as a percent)         0.35%            
Redemption price percentage         100.00%            
6.35% Bonds | Senior Notes                      
Debt Instrument [Line Items]                      
Interest rate (as a percent)       6.35%   6.35%          
Long-term debt, fair value           $ 632,000          
Aggregate principal amount       $ 600,000              
Interest rate, increase (decrease) over period (as a percent)       0.30%              
Redemption price percentage       100.00%              
Unsecured Revolving Credit Facility February 6, 2023 | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Credit facility, maximum borrowing capacity                     $ 2,250,000
2021 Term Loan Facility                      
Debt Instrument [Line Items]                      
Long-term line of credit $ 531,600                    
2021 Term Loan Facility | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Loss on extinguishment of debt     $ 20,500                
2021 Term Loan Facility | Revolving Credit Facility | Common Stock                      
Debt Instrument [Line Items]                      
Debt conversion, converted instrument, shares issued (in shares) | shares     19.5                
Convertible debt     $ 311,500             £ 239.8  
2025 Term Loan Facility                      
Debt Instrument [Line Items]                      
Proceeds from long-term borrowings $ 200,000 £ 410.0                  
Debt instrument, term (in years) 2 years 2 years                  
Long-term line of credit $ 120,000               £ 410.2    
Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Available borrowing capacity           1,610,000          
Revolving Credit Facility | Letter of Credit                      
Debt Instrument [Line Items]                      
Long-term line of credit, noncurrent           300          
Committed and Uncommitted Letter-of-Credit Facilities | Letter of Credit                      
Debt Instrument [Line Items]                      
Long-term line of credit, noncurrent           249,800          
Total Issued Letters of Credit | Letter of Credit                      
Debt Instrument [Line Items]                      
Long-term line of credit, noncurrent           $ 250,100   $ 217,000      
v3.25.4
Pension and Other Postretirement Benefit Plans - Schedule of Components of Net Periodic Pension Benefit Expense Recognized in Earnings (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Component:    
Service cost $ 2,838 $ 2,499
Interest cost 21,880 20,402
Expected return on plan assets (27,522) (24,687)
Amortization of previously unrecognized items 3,380 3,002
Total net periodic pension benefit expense recognized $ 576 $ 1,216
v3.25.4
Pension and Other Postretirement Benefit Plans - Schedule of Certain Information Regarding Cash Contributions (Details)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
USD ($)
Retirement Benefits [Abstract]  
Cash contributions made during the first three months of fiscal 2026 $ 4,011
Cash contributions projected for the remainder of fiscal 2026 9,839
Total $ 13,850
v3.25.4
Discontinued Operations - Narrative (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended
Apr. 30, 2025
Apr. 10, 2025
Apr. 07, 2025
Mar. 14, 2025
Sep. 27, 2024
Apr. 26, 2019
Mar. 31, 2025
Feb. 28, 2025
Dec. 26, 2025
Mar. 28, 2025
Dec. 27, 2024
Sep. 27, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                        
Miscellaneous income (expense), net                 $ 287   $ (130,107)  
Loss on investment in equity securities                 0   145,215 $ 145,200
Transition services agreement, income (expense)                 100   11,400  
Net earnings (loss) attributable to Jacobs from discontinued operations                 554   (1,001)  
Worley Stock                        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                        
Ordinary shares included in purchase price           $ 58,200            
Worley                        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                        
Consideration transferred           3,400,000            
Consideration paid in cash           $ 2,800,000            
Net earnings (loss) attributable to Jacobs from discontinued operations                 0   0  
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Amentum Holdings, Inc.                        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                        
Discontinued operation, remaining shares held in escrow (in shares)     9,700,000                  
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | SpinCo Business                        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                        
Stock issued during period, spinoff transaction ( in shares)         124,084,108              
Shares issued during period, spinoff, conversion ratio (in shares)         1              
Cash received from SpinCo business         $ 911,000              
Discontinued operation, working capital adjustment             $ 70,000          
Discontinued operation, working capital adjustment, reduction in recorded receivable             $ 24,000          
Discontinued operation, receivable balance collected   $ 70,000                    
Discontinued operation, remaining shares held in escrow (in shares) 7,300,000   7,300,000                  
Net earnings (loss) attributable to Jacobs from discontinued operations                 $ 554   $ (1,001)  
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | SpinCo Business | Amentum Holdings, Inc.                        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                        
Equity method investment retained, shares owned after disposal (in shares)         29,200,000             29,200,000
Equity method investment retained, shares transferred to escrow (in shares)         10,900,000              
Discontinued operation, remaining shares held in escrow (in shares)     2,400,000 9,700,000 18,300,000              
Investment in equity securities         $ 749,500             $ 749,500
Discontinued operation, entitled to receive shares held in escrow (in shares)               1,200,000        
Miscellaneous income (expense), net                   $ 21,900    
v3.25.4
Discontinued Operations- Schedule of Earnings (Loss) From Discontinued Operations, Net of tax (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]    
Net (Loss) Earnings of the Group from Discontinued Operations $ 554 $ (1,001)
Net Earnings (Loss) Attributable to Jacobs from Discontinued Operations 554 (1,001)
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | SpinCo Business    
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]    
Revenues 0 64
Direct cost of contracts 0 (60)
Gross (loss) profit 0 4
Selling, general and administrative expense 487 (1,348)
Operating (Loss) Profit 487 (1,344)
Other income, net 0 0
(Loss) Earnings Before Taxes from Discontinued Operations 487 (1,344)
Income Tax Benefit (Expense) 67 343
Net (Loss) Earnings of the Group from Discontinued Operations 554 (1,001)
Net Earnings Attributable to Noncontrolling Interests from Discontinued Operations 0 0
Net Earnings (Loss) Attributable to Jacobs from Discontinued Operations 554 $ (1,001)
Disposal group, including discontinued operation, foreign tax indemnity reserve release $ 800  
v3.25.4
PA Consulting Redeemable Noncontrolling Interests - Narrative (Details)
£ / shares in Units, $ / shares in Units, $ in Thousands, £ in Millions
 3 Months Ended
Jan. 02, 2026
GBP (£)
Dec. 26, 2025
USD ($)
$ / shares
Dec. 27, 2024
USD ($)
$ / shares
Jan. 02, 2026
$ / shares
Jan. 02, 2026
£ / shares
Sep. 26, 2025
USD ($)
$ / shares
Sep. 27, 2024
$ / shares
Business Combination [Line Items]              
Repurchase of redeemable noncontrolling interests   $ 403 $ 3,729        
Preference share effect on basic earnings per share (in dollars per share) | $ / shares   $ 0.06 $ 0.04        
Allocated share-based compensation expense   $ 22,700 $ 6,000        
Fair value of awards not yet recognized   $ 178,000          
Fair value of such grants anticipated to vest (as percent)   60.00%          
Common stock, par value (in dollars per share) | $ / shares   $ 1       $ 1 $ 1.00
PA Consulting Group Limited              
Business Combination [Line Items]              
Cash in employee benefit trust   $ 1,000       $ 1,400  
PA Consulting Group Limited | Subsequent Event              
Business Combination [Line Items]              
Initial aggregate consideration transferred | £ £ 1,216            
Common stock, par value (in dollars per share) | $ / shares       $ 1.00      
Consideration transferred, equity interest, percent of aggregate initial consideration 20.00%            
Voting equity interest acquired (as percent)       100.00% 100.00%    
Business Combination, price per share (in pound sterling per share) | £ / shares         £ 100.20    
Business combination, additional consideration, estimated equity value | £ £ 75            
Equity-Based Incentive Grants              
Business Combination [Line Items]              
Accrued cumulative expense associated with the vested grants   127,500       $ 103,800  
Allocated share-based compensation expense   $ 22,600 $ 5,900        
Share-Based Payment Arrangement, Tranche One | Equity-Based Incentive Grants              
Business Combination [Line Items]              
Award vesting percentage   40.00%          
Share-Based Payment Arrangement, Tranche Two | Equity-Based Incentive Grants              
Business Combination [Line Items]              
Award vesting percentage   60.00%          
PA Consulting Employees              
Business Combination [Line Items]              
Ownership interest of employees (as a percent)           71.00%  
v3.25.4
PA Consulting Redeemable Noncontrolling Interests - Schedule of Change in Redeemable Noncontrolling Interest (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]    
Redeemable noncontrolling interest, beginning balance $ 7,098  
Attribution of Preferred Dividend to Common Shareholders (5,207) $ (2,309)
Redeemable noncontrolling interest, ending balance 4,331  
PA Consulting Employees    
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]    
Redeemable noncontrolling interest, beginning balance 1,018,694  
Accrued Preferred Dividend to Preference Shareholders 21,570  
Attribution of Preferred Dividend to Common Shareholders (21,570)  
Net earnings attributable to redeemable noncontrolling interests to Common Shareholders 5,720  
Redeemable Noncontrolling interests redemption value adjustment 65,590  
Repurchase of redeemable noncontrolling interests (622)  
Cumulative translation adjustments and other 3,598  
Redeemable noncontrolling interest, ending balance $ 1,092,980  
v3.25.4
Restructuring and Other Charges - Schedule of Restructuring and Other Charges Impacts on Reportable Segment Income by Line of Business (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Restructuring Cost and Reserve [Line Items]    
Restructuring and other charges $ 3,999  
CH2M HILL Companies, Ltd.    
Restructuring Cost and Reserve [Line Items]    
Restructuring and other charges 3,999 $ 14,740
CH2M HILL Companies, Ltd. | Professional Services and Employee Seperation    
Restructuring Cost and Reserve [Line Items]    
Restructuring and other charges 2,200 15,000
Operating Segments | CH2M HILL Companies, Ltd. | Infrastructure & Advanced Facilities    
Restructuring Cost and Reserve [Line Items]    
Restructuring and other charges 2,242 14,976
Operating Segments | CH2M HILL Companies, Ltd. | PA Consulting    
Restructuring Cost and Reserve [Line Items]    
Restructuring and other charges $ 1,757 $ (236)
v3.25.4
Restructuring and Other Charges - Schedule of Restructuring and Other Activities (Details)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
USD ($)
Restructuring Reserve [Roll Forward]  
Beginning balance $ 14,516
Net Charges 3,999
Payments and other (14,155)
Ending balance $ 4,360
v3.25.4
Restructuring and Other Charges - Schedule of Restructuring and Other Activities by Major Type of Costs (Details) - CH2M Hill, KeyM, John Wood Group Acquisitions and ECR Sale - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 3,999 $ 14,740
Voluntary and Involuntary Termination    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 1,709 385
Outside Services    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 1,176 11,412
Other    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 1,114 $ 2,943
v3.25.4
Restructuring and Other Charges - Schedule of Cumulative Amounts Incurred for Restructuring and Other Activities Costs (Details) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 27, 2024
Dec. 26, 2025
Restructuring Cost and Reserve [Line Items]    
Cumulative amounts incurred to date   $ 274,327
Interest Rate Swap    
Restructuring Cost and Reserve [Line Items]    
Derivative, gain on derivative $ 35,200  
Voluntary and Involuntary Termination    
Restructuring Cost and Reserve [Line Items]    
Cumulative amounts incurred to date   110,751
Outside Services    
Restructuring Cost and Reserve [Line Items]    
Cumulative amounts incurred to date   159,651
Other    
Restructuring Cost and Reserve [Line Items]    
Other   $ 3,925
v3.25.4
Commitments and Contingencies and Derivative Financial Instruments (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Feb. 13, 2023
USD ($)
Dec. 26, 2025
USD ($)
instrument
Sep. 26, 2025
USD ($)
Oct. 02, 2020
Jan. 05, 2026
USD ($)
Sep. 30, 2022
USD ($)
instrument
Letter of Credit | Total Issued Letters of Credit            
Loss Contingencies [Line Items]            
Long-term line of credit, noncurrent   $ 250.1 $ 217.0      
Letter of Credit | Revolving Credit Facility            
Loss Contingencies [Line Items]            
Long-term line of credit, noncurrent   0.3        
Letter of Credit | Committed and Uncommitted Letter-of-Credit Facilities            
Loss Contingencies [Line Items]            
Long-term line of credit, noncurrent   249.8        
Surety Bond            
Loss Contingencies [Line Items]            
Guarantor obligations, carrying value   3,000.0 2,800.0      
Treasury Lock            
Loss Contingencies [Line Items]            
Number of instruments held | instrument           2
Derivative notional amount           $ 500.0
Gain on derivatives, before taxes $ 37.4          
Unrealized gain (loss) on derivatives   $ 20.2 20.9      
Treasury Lock | Fixed Rate Date            
Loss Contingencies [Line Items]            
Derivative fixed interest rate (as a percent) 5.90%          
Aggregate principal amount $ 500.0          
Interest Rate Swap            
Loss Contingencies [Line Items]            
Number of instruments held | instrument   1        
Derivative notional amount   $ 200.0 200.0      
Unrealized gain (loss) on derivatives   14.7 $ 15.6      
Term of derivative contract (in years/months)     10 years      
Derivative assets (liabilities), at fair value   19.3 $ 20.5      
Interest Rate Swap | Minimum            
Loss Contingencies [Line Items]            
Term of derivative contract (in years/months)       5 years    
Interest Rate Swap | Maximum            
Loss Contingencies [Line Items]            
Term of derivative contract (in years/months)       10 years    
Foreign Exchange Forward            
Loss Contingencies [Line Items]            
Derivative notional amount   439.8 491.9      
Derivative assets (liabilities), at fair value   1.9 (0.3)      
Foreign Exchange Forward | Subsequent Event            
Loss Contingencies [Line Items]            
Derivative notional amount         $ 1,310.0  
Foreign Exchange Forward | Current Assets            
Loss Contingencies [Line Items]            
Derivative assets (liabilities), at fair value   2.1 2.0      
Foreign Exchange Forward | Current Liabilities            
Loss Contingencies [Line Items]            
Derivative assets (liabilities), at fair value   $ (0.2) $ (2.3)      
Foreign Exchange Forward | Minimum            
Loss Contingencies [Line Items]            
Term of derivative contract (in years/months)   1 month        
Foreign Exchange Forward | Maximum            
Loss Contingencies [Line Items]            
Term of derivative contract (in years/months)   3 months        
v3.25.4
Segment Information - Narrative (Details)
 3 Months Ended
Dec. 26, 2025
segment
Segment Reporting [Abstract]  
Number of operating segments 2
Number of Reportable Segments 2
v3.25.4
Segment Information - Schedule of Total Revenues, Segment Operating Profit and Total Asset for Reporting Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 26, 2025
Dec. 27, 2024
Segment Reporting Information [Line Items]    
Revenues from External Customers $ 3,293,281 $ 2,932,956
Direct cost of contracts (2,528,031) (2,211,689)
Selling, general and administrative expenses (532,689) (512,849)
Segment Operating Profit 232,561 208,418
Restructuring, Transaction and Other Charges (29,076) (29,934)
Amortization of Intangible Assets (37,996) (38,661)
Total Other (Expense) Income, net (26,338) (155,271)
Earnings from Continuing Operations Before Taxes 206,223 53,147
Restructuring charges 3,999  
Allocated share-based compensation expense 22,700 6,000
Equity method investment retained after disposal, mark-to market losses   145,200
CH2M HILL Companies, Ltd.    
Segment Reporting Information [Line Items]    
Restructuring charges 3,999 14,740
CH2M HILL Companies, Ltd. | Professional Services and Employee Seperation    
Segment Reporting Information [Line Items]    
Restructuring charges 2,200 15,000
PA Consulting Group Limited | Professional Services and Dedicated Internal Personnel    
Segment Reporting Information [Line Items]    
Restructuring charges 1,800  
Amentum Holdings, Inc.    
Segment Reporting Information [Line Items]    
Restructuring charges   7,900
Operating Segments    
Segment Reporting Information [Line Items]    
Revenues from External Customers 3,293,281 2,932,956
Direct cost of contracts (2,528,031) (2,211,689)
Selling, general and administrative expenses (465,617) (444,254)
Segment Operating Profit 299,633 277,013
Infrastructure & Advanced Facilities | Operating Segments    
Segment Reporting Information [Line Items]    
Revenues from External Customers 2,938,848 2,626,208
Direct cost of contracts (2,293,163) (2,019,696)
Selling, general and administrative expenses (430,945) (396,237)
Segment Operating Profit 214,740 210,275
Infrastructure & Advanced Facilities | Operating Segments | CH2M HILL Companies, Ltd.    
Segment Reporting Information [Line Items]    
Restructuring charges 2,242 14,976
PA Consulting | Operating Segments    
Segment Reporting Information [Line Items]    
Revenues from External Customers 354,433 306,748
Direct cost of contracts (234,868) (191,993)
Selling, general and administrative expenses (34,672) (48,017)
Segment Operating Profit 84,893 66,738
PA Consulting | Operating Segments | CH2M HILL Companies, Ltd.    
Segment Reporting Information [Line Items]    
Restructuring charges $ 1,757 $ (236)