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TREAS/IRS RIN: 1545-BQ21 Publication ID: 2026 
Title: Proposed Regulations to Update the Rehabilitation Credit Regulations in Section 1.48-12 
Abstract:

These proposed regulations would address section 1.48-12 and the investment credit regulations under sections 46 and 48 of the Code, remove obsolete regulations, update the regulations to reflect statutory changes, including changes made by the TCJA, and revise certain reporting procedures related to claiming the rehabilitation credit and other investment credits. The proposed regulations would support Executive Order 14219 (Ensuring Lawful Governance and Implementing the President’s "Department of Government Efficiency” Deregulatory Initiative) by removing obsolete regulations issued under prior law, by reorganizing the investment credit regulations to reflect current law, and by updating definitions, statutory and regulatory references, and reporting procedures to reflect current law which would reduce regulatory burden for taxpayers claiming the investment credit. The proposed regulations also would support Executive Order 14154 (Unleashing American Energy) by removing obsolete rules and streamlining the regulations for taxpayers that claim certain energy credits that are components of the investment credit.

 
Agency: Department of the Treasury(TREAS)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
EO 14192 Designation: Deregulatory 
CFR Citation: Not Yet Determined     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 26 U.S.C. 7805    26 U.S.C. 46 to 50    Pub. L. 115-97   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  11/00/2026 
Additional Information: REG-118587-21 (NPRM) Drafter attorney: Lani Sinfield, (240) 613-1392 Reviewer attorney: Barbara Campbell, (202) 317-4137 Treasury attorney: Sarah Jane Bever-Chritton, (202) 579-2585 CC: ECE: B01
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: None 
Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Lani Sinfield
Attorney-Advisor (Tax)
Department of the Treasury
Internal Revenue Service
5000 Ellin Road, NCFB C3-210,
Lanham, MD 20706
Phone:240 613-1392
Fax:855 591-7867
Email: lani.m.sinfield@irscounsel.treas.gov