Michigan 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

What the bill says

To amend 1967 PA 281, entitled "Income tax act of 1967," (MCL 206.1 to 206.847) by adding sections 677a and 717a.

From the engrossed text, October 28, 2025:

A bill to amend 1967 PA 281, entitled "Income tax act of 1967," (MCL 206.1 to 206.847) by adding sections 677a and 717a. the peoplE of the state of michigan enact: Sec. 677a. (1) Except as otherwise provided under this section, for tax years that begin on and after January 1, 2025, a taxpayer may claim a credit against the tax imposed by this part equal to 15% of the taxpayer's qualified research and development expenses incurred during the tax year. A taxpayer that claims a credit under this section is not prohibited from claiming a credit under section 677. However, the taxpayer shall not claim a credit under this section and section 677 based on the same qualified research expenses. (2) To be eligible for a credit under this section, a taxpayer must submit, in a form and manner as prescribed by the department, a tentative claim for which a credit under this section is sought to the department on or before March 15 after the calendar year ending with or within the tax year for which the taxpayer intends to submit a claim for the credit on the taxpayer's annual return required under this part. The tentative claim required under this subsection must include, at a minimum, the amount of qualified research and development expenses incurred for which …

Read the full official text

Sponsors

• Wendzel, Pauline (R, 39) · primary sponsor
• Greene, Jaime (R, 65)
• Steckloff, Samantha (D, 19)
• Bohnak, Karl (R, 109)
• Woolford, Jason (R, 50)
• Prestin, David (R, 108)
• Wozniak, Douglas (R, 59)
• Andrews, Joey (D, 38)
• BeGole, Brian (R, 71)
• McFall, Mike (D, 14)
• Schuette, Bill (R, 95)
• Alexander, Gregory (R, 98)

Latest actions

1. October 30, 2025: REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT
2. October 30, 2025: PASSED BY HOUSE WITH IMMEDIATE EFFECT
3. October 28, 2025: transmitted
4. October 28, 2025: passed; given immediate effect Roll Call #270 Yeas 78 Nays 26 Excused 0 Not Voting 6
5. October 28, 2025: read a third time
6. October 23, 2025: placed on third reading
7. October 23, 2025: substitute (H-1) adopted
8. October 23, 2025: read a second time
9. March 25, 2025: referred to second reading
10. March 25, 2025: reported with recommendation with substitute (H-1)

Votes

• passed; given immediate effect (October 28, 2025): 78 yea, 26 nay, passed
• Reported With Recommendation With Substitute H-1 (March 25, 2025): 13 yea, 2 nay, passed

Common questions

What is HB4124?

HB4124 is a bill in the Michigan Legislature (103rd Legislature): 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.

What does HB4124 do?

In its own words: To amend 1967 PA 281, entitled "Income tax act of 1967," (MCL 206.1 to 206.847) by adding sections 677a and 717a.

What is the status of HB4124?

In committee as of October 30, 2025. Latest action: REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT (October 30, 2025).

Who sponsored HB4124?

Wendzel, Pauline (R, 39), with 11 co-sponsors.

Where is the official record for HB4124?

On the Michigan Legislature website: https://www.legislature.mi.gov/Bills/Bill?ObjectName=2025-HB-4124