U.S. IRS Revenue Procedure on Elections, Amended Returns, and Accounting Methods Changes for Research Or Experimental Expenditure Under the OBBBA

The U.S. IRS has issued Revenue Procedure (RP) 2025-28, which provides procedures for making certain elections, filing amended returns, and changing accounting methods for research or experimental expenditures considering changes made by the One, Big, Beautiful Bill Act (OBBBA). This include procedures for:
- Making elections under new § 174A to deduct or amortize domestic research or experimen…