The IRS has modified automatic accounting method change procedures for research or experimental expenditures and certain residential construction contracts. Rev. Proc. 2026-32 modifies sections 7 and 19 of Rev. Proc. 2025-23 to reflect changes made by the One, Big, Beautiful Bill Act (OBBBA).
For research expenditures, the procedure modifies accounting method changes under Code Secs. 174 and 174A. Code Sec. 174 continues to require capitalization and 15-year amortization for foreign research expenditures. Code Sec. 174A generally allows a current deduction for domestic research expenditures paid or incurred in tax years beginning after December 31, 2024.
The procedure also revises rules governing adjustments associated with accounting method changes. It coordinates certain Code Sec. 481 adjustments with the OBBBA transition method for recovering unamortized domestic research expenditures. It also extends through tax years beginning before 2028 waivers of certain eligibility restrictions for specified automatic changes.
Further, the IRS provides automatic accounting method changes for residential construction contracts affected by the OBBBA amendments to Code Sec. 460. Taxpayers may change from the percentage-of-completion method to an exempt contract method for qualifying contracts entered into in tax years beginning after July 4, 2025. Certain taxpayers may also change their treatment of costs under Code Sec. 263A.
The modified procedures generally apply to Form 3115, Application for Change in Accounting Method, filed after September 4, 2026. Special transition rules apply to certain previously filed Forms 3115.
