Summary of Significant Accounting Policies (Policies)	3 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The accompanying unaudited consolidated condensed financial statements include the accounts of SIFCO Industries, Inc. and its wholly-owned subsidiaries (collectively, the “Company”). All intercompany accounts and transactions have been eliminated in consolidation. The U.S. dollar is the functional currency for all of the Company’s operations in the United States (“U.S.”) and its non-operating, non-U.S. subsidiaries. For these operations, all gains and losses from completed currency transactions are included in income (loss). These unaudited consolidated condensed financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended September 30, 2025 (the “2025 Annual Report”). The year-end consolidated condensed balance sheet contained in these financial statements was derived from the audited financial statements and disclosures required by accounting principles generally accepted in the U.S. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) and disclosures considered necessary for a fair presentation have been included. The results of operations for any interim period are not necessarily indicative of the results to be expected for other interim periods or the full year.
Net Earnings (Loss) per Share	Net Earnings (Loss) per ShareThe Company’s net earnings (loss) per basic share has been computed based on the weighted-average number of common shares outstanding.
Recent Accounting Standards Adopted and Impact of Newly Issued Accounting Standards	Recent Accounting Standards Adopted In March 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-01, “Compensation—Stock Compensation - Scope Application of Profits Interest and Similar Awards,” which provides illustrative guidance to help entities determine whether profits interest and similar awards should be accounted for as share-based payment arrangements within the scope of Topic 718 or another accounting standard. The Company adopted the ASU during the first quarter of fiscal year 2026. This guidance did not have a material impact on the Company’s consolidated condensed financial statements. E.Impact of Newly Issued Accounting Standards Accounting Pronouncements - Issued and Not Effective In December 2025, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2025-11, “Interim Reporting (Topic 270): Narrow-Scope Improvements,” which clarifies the guidance in Topic 270 to improve the consistency of interim financial reporting. The ASU provides a comprehensive list of required interim disclosures and introduces a disclosure principle requiring entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. ASU No. 2025-11 is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods, with early adoption permitted. The Company is currently assessing the impact of this standard on our consolidated condensed financial statements and related disclosures. In January 2025, the FASB issued ASU 2025-01, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date” (“ASU 2025-01”). ASU 2025-01 outlines the effective date of ASU 2024-03, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses” (“ASU 2024-03”), as the first annual reporting period beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption of ASU 2024-03 is still permitted. ASU 2024-03 requires both interim and annual disclosures pertaining to expense captions on the face of the income statement within continuing operations containing the following amounts: (i) purchases of inventory, (ii) employee compensation, (iii) depreciation, (iv) intangible asset amortization, and (v) depreciation, depletion, and amortization recognized as part of oil and gas-producing activities (or other amounts of depletion expense) included in each relevant expense caption. This disaggregated information will be required to be disclosed with other disaggregated amounts under other U.S. GAAP guidance, such as revenue and income taxes. Additionally, a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively and total selling expenses and a definition of such costs (in annual reporting periods only) should be disclosed. More granular information about cost of sales and selling, general, and administrative expenses (SG&A) would assist a reader of the Company's consolidated financial statements in better understanding an entity’s cost structure and forecasting future cash flows. The amendments in ASU 2024-03 should be applied either (1) prospectively to financial statements issued for reporting periods after the effective date of the ASU or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently assessing the impact of this standard on our consolidated condensed financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. ASU 2023-09 is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. Early adoption is permitted. A public entity should apply the amendments in ASU 2023-09 prospectively to all annual periods beginning after December 15, 2024. The Company will first apply this guidance, on an annual basis, for the current fiscal year. This guidance will expand our annual income tax disclosures, but will not affect our consolidated condensed financial statements.
Revenue	The Company produces forged components for (i) turbine engines that power commercial, business and regional aircraft as well as military aircraft and other military applications; (ii) airframe applications for a variety of aircraft; (iii) industrial gas and steam turbine engines for power generation units; and (iv) commercial space, semiconductor and other commercial applications. Revenue is recognized when performance obligations under the terms of the contract with a customer of the Company are satisfied. A portion of the Company’s contracts are from purchase orders (“PO’s”), which continue to be recognized as of a point in time when products are shipped from the Company’s manufacturing facilities or at a later time when control of the products transfers to the customer. Under the revenue standard, the Company recognizes certain revenue over time as it satisfies the performance obligations because the conditions of transfer of control to the applicable customer are as follows: •Certain military contracts, which relate to the provisions of specialized or unique goods to the U.S. government with no alternative use, include provisions within the contract that are subject to the Federal Acquisition Regulation (“FAR”). The FAR provision allows the customer to unilaterally terminate the contract for convenience and requires the customer to pay the Company for costs incurred plus reasonable profit margin and take control of any work in process. •For certain commercial contracts involving customer-specific products with no alternative use, the contract may fall under the FAR clause provisions noted above for military contracts or may include certain provisions within their contract that the customer controls the work in process based on contractual termination clauses or restrictions of the Company’s use of the product and the Company possesses a right to payment for work performed to date plus reasonable profit margin. As a result of control transferring over time for these products, revenue is recognized based on progress toward completion of the performance obligation. The selection of the method to measure progress towards completion requires judgment and is based on the nature of the products to be provided. The Company elected to use the cost to cost input method of progress based on costs incurred for these contracts because it best depicts the transfer of goods to the customer based on incurring costs on the contracts. Under this method, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recorded proportionally as costs are incurred.

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Dec. 31, 2025

The accompanying unaudited consolidated condensed financial statements include the accounts of SIFCO Industries, Inc. and its wholly-owned subsidiaries (collectively, the “Company”). All intercompany accounts and transactions have been eliminated in consolidation.

The U.S. dollar is the functional currency for all of the Company’s operations in the United States (“U.S.”) and its non-operating, non-U.S. subsidiaries. For these operations, all gains and losses from completed currency transactions are included in income (loss).

These unaudited consolidated condensed financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended September 30, 2025 (the “2025 Annual Report”). The year-end consolidated condensed balance sheet contained in these financial statements was derived from the audited financial statements and disclosures required by accounting principles generally accepted in the U.S. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) and disclosures considered necessary for a fair presentation have been included. The results of operations for any interim period are not necessarily indicative of the results to be expected for other interim periods or the full year.

Net Earnings (Loss) per Share

Net Earnings (Loss) per ShareThe Company’s net earnings (loss) per basic share has been computed based on the weighted-average number of common shares outstanding.

Recent Accounting Standards Adopted and Impact of Newly Issued Accounting Standards

Recent Accounting Standards Adopted

In March 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-01, “Compensation—Stock Compensation - Scope Application of Profits Interest and Similar Awards,” which provides illustrative

guidance to help entities determine whether profits interest and similar awards should be accounted for as share-based payment arrangements within the scope of Topic 718 or another accounting standard. The Company adopted the ASU during the first quarter of fiscal year 2026. This guidance did not have a material impact on the Company’s consolidated condensed financial statements.

E.Impact of Newly Issued Accounting Standards

Accounting Pronouncements - Issued and Not Effective

In December 2025, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2025-11, “Interim Reporting (Topic 270): Narrow-Scope Improvements,” which clarifies the guidance in Topic 270 to improve the consistency of interim financial reporting. The ASU provides a comprehensive list of required interim disclosures and introduces a disclosure principle requiring entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. ASU No. 2025-11 is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods, with early adoption permitted. The Company is currently assessing the impact of this standard on our consolidated condensed financial statements and related disclosures.

In January 2025, the FASB issued ASU 2025-01, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date” (“ASU 2025-01”). ASU 2025-01 outlines the effective date of ASU 2024-03, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses” (“ASU 2024-03”), as the first annual reporting period beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption of ASU 2024-03 is still permitted. ASU 2024-03 requires both interim and annual disclosures pertaining to expense captions on the face of the income statement within continuing operations containing the following amounts: (i) purchases of inventory, (ii) employee compensation, (iii) depreciation, (iv) intangible asset amortization, and (v) depreciation, depletion, and amortization recognized as part of oil and gas-producing activities (or other amounts of depletion expense) included in each relevant expense caption. This disaggregated information will be required to be disclosed with other disaggregated amounts under other U.S. GAAP guidance, such as revenue and income taxes. Additionally, a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively and total selling expenses and a definition of such costs (in annual reporting periods only) should be disclosed. More granular information about cost of sales and selling, general, and administrative expenses (SG&A) would assist a reader of the Company's consolidated financial statements in better understanding an entity’s cost structure and forecasting future cash flows. The amendments in ASU 2024-03 should be applied either (1) prospectively to financial statements issued for reporting periods after the effective date of the ASU or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently assessing the impact of this standard on our consolidated condensed financial statements and related disclosures.

In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. ASU 2023-09 is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. Early adoption is permitted. A public entity should apply the amendments in ASU 2023-09 prospectively to all annual periods beginning after December 15, 2024. The Company will first apply this guidance, on an annual basis, for the current fiscal year. This guidance will expand our annual income tax disclosures, but will not affect our consolidated condensed financial statements.

Revenue

The Company produces forged components for (i) turbine engines that power commercial, business and regional aircraft as well as military aircraft and other military applications; (ii) airframe applications for a variety of aircraft; (iii) industrial gas and steam turbine engines for power generation units; and (iv) commercial space, semiconductor and other commercial applications.

Revenue is recognized when performance obligations under the terms of the contract with a customer of the Company are satisfied. A portion of the Company’s contracts are from purchase orders (“PO’s”), which continue to be recognized as of a point in time when products are shipped from the Company’s manufacturing facilities or at a later time when control of the products transfers to the customer. Under the revenue standard, the Company recognizes certain revenue over time as it satisfies the performance obligations because the conditions of transfer of control to the applicable customer are as follows:

•Certain military contracts, which relate to the provisions of specialized or unique goods to the U.S. government with no alternative use, include provisions within the contract that are subject to the Federal Acquisition Regulation (“FAR”). The FAR provision allows the customer to unilaterally terminate the contract for convenience and requires the customer to pay the Company for costs incurred plus reasonable profit margin and take control of any work in process.

•For certain commercial contracts involving customer-specific products with no alternative use, the contract may fall under the FAR clause provisions noted above for military contracts or may include certain provisions within their contract that the customer controls the work in process based on contractual termination clauses or restrictions of the Company’s use of the product and the Company possesses a right to payment for work performed to date plus reasonable profit margin.

As a result of control transferring over time for these products, revenue is recognized based on progress toward completion of the performance obligation. The selection of the method to measure progress towards completion requires judgment and is based on the nature of the products to be provided. The Company elected to use the cost to cost input method of progress based on costs incurred for these contracts because it best depicts the transfer of goods to the customer based on incurring costs on the contracts. Under this method, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recorded proportionally as costs are incurred.