RP-2025-28: Research and Experimental Expenditures under OBBB

Revenue Procedure 2025-28 instructs taxpayers on how to make various elections, file amended returns, or change accounting methods for research or experimental expenditures as provided under section 70302 of the One, Big, Beautiful Bill Act, Public Law 119-21, 139 Stat. 72 (July 4, 2025). It also provides transitional rules, modifies Revenue Procedure 2025-23, List of Automatic Changes, and grants an extension of time for partnerships, S corporations, C corporations, individuals, estates and trusts, and exempt organizations to file superseding 2024 Federal income tax returns.

Revenue Procedure 2025-28 will be in IRB: 2025-38, dated: September 15, 2025

Thank you for subscribing to IRS GuideWire, an IRS e-mail service. If you are a Tax Professional and have a specific concern about your tax situation, call the IRS Practitioner Priority Service 1-866-860-4259.

This message was distributed automatically from the IRS GuideWire mailing list. Please Do Not Reply To This Message.

Update your subscriptions, modify your password or email address, or stop subscriptions at any time on your Subscriber Preferences Page. You will need your email address to log in. If you have questions or problems with the subscription service, visit subscriberhelp.govdelivery.com.

This service is provided to you at no charge by the Internal Revenue Service (IRS).

This email was sent to [email protected] by: Internal Revenue Service (IRS) · Internal Revenue Service · 1111 Constitution Ave. N.W. · Washington, D.C. 20535