HB4124

Corporate income tax: credits; credit for advanced small modular reactors research and development expenses; provide for. Amends 1967 PA 281 (MCL 206.1 - 206.847) by adding secs. 677a & 717a. TIE BAR WITH: HB 4127'25, HB 4129'25, HB 4125'25, HB 4126'25, HB 4128'25

Chamber Passed·10/28/25

Michigan HB4124 provides a tax credit for research and development expenses related to advanced small modular reactors.

Michigan HB4124 amends the state's corporate income tax law to introduce a tax credit for qualified research and development expenses related to advanced nuclear reactor technologies. Beginning in 2026, taxpayers and employers can claim a credit equal to 15% of their qualified research and development expenses. The credit is subject to an annual cap of $2,500,000. If the total claims exceed this cap, the credits will be prorated equally among claimants. The credit can be carried forward for up to 15 years if unused.

Included in complete analysis

  • Overview
  • Core Provisions
  • Implementation
  • Impact
  • Legal Framework
  • Critical Issues

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Where it stands

Last
Passed the House · 78–26 · Oct 28, 2025
Current
Energy And Environment Committee
Next
Senate floor vote

Sponsors

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4
13
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Democratic CaucusRepublican Caucus

Roll Call Votes

78 Yea

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26 Nay

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Calendar

Mar 25, 2025

9:00 AM

House Energy

Mar 4, 2025

9:00 AM

House Energy

History

Oct 30, 2025

Senate

Passed By House With Immediate Effect

Oct 30, 2025

Senate

Referred To Committee On Energy And Environment

Oct 28, 2025

House

Read A Third Time