---
type: "Bill"
title: "Michigan business tax: credits; time frame for completion of certain multiphase projects; modify. Amends sec. 437 of 2007 PA 36 (MCL 208.1437)."
description: "Michigan business tax: credits; time frame for completion of certain multiphase projects; modify. Amends sec. 437 of 2007 PA 36 (MCL 208.1437)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2021-2022"
identifier: "SB 437"
citation: "Michigan SB 437 (2021-2022)"
classification: ["bill"]
subjects: ["Michigan business tax: credits"]
status: "enacted"
primary_sponsors: ["Wayne Schmidt"]
version_count: 4
action_count: 28
vote_count: 1
first_action: "2021-05-12T04:00:00+00:00"
last_action: "2021-06-16T04:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/95a0e72c-9711-4bbf-bdce-b0c337c76e14"
source_url: "http://legislature.mi.gov/doc.aspx?2021-SB-0437"
source_hash: "9829b0c61b1dad117829b6eabe33508947410cedf7f41d2f1d79913f6f36e15b"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-mi"]
---

# Michigan SB 437 (2021-2022) — Michigan business tax: credits; time frame for completion of certain multiphase projects; modify. Amends sec. 437 of 2007 PA 36 (MCL 208.1437).

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **As Passed by the House** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/billengrossed/Senate/htm/2021-SEBH-0437.htm)
2. **As Passed by the Senate** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/billengrossed/Senate/htm/2021-SEBS-0437.htm)
3. **Public Act** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/publicact/htm/2021-PA-0027.htm)
4. **Senate Introduced Bill** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/billintroduced/Senate/htm/2021-SIB-0437.htm)

## Votes

- passed; given immediate effect Roll Call # 322 Yeas 87 Nays 22 Excused 0 Not Voting 1 — **87–22** (pass) · lower

## Sponsors

- Wayne Schmidt — primary (person)
- Marshall Bullock — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-05-12T04:00:00+00:00** INTRODUCED BY SENATOR WAYNE A. SCHMIDT `introduction`
- **2021-05-12T04:00:00+00:00** REFERRED TO COMMITTEE ON ECONOMIC AND SMALL BUSINESS DEVELOPMENT `referral-committee`
- **2021-05-25T04:00:00+00:00** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2021-05-25T04:00:00+00:00** COMMITTEE RECOMMENDED IMMEDIATE EFFECT
- **2021-05-25T04:00:00+00:00** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2021-06-02T04:00:00+00:00** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2021-06-02T04:00:00+00:00** SUBSTITUTE (S-1) CONCURRED IN
- **2021-06-02T04:00:00+00:00** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-1)
- **2021-06-03T04:00:00+00:00** PASSED ROLL CALL # 252 YEAS 32 NAYS 4 EXCUSED 0 NOT VOTING 0 `passage`
- **2021-06-03T04:00:00+00:00** received on 06/03/2021 `introduction`
- **2021-06-03T04:00:00+00:00** read a first time `reading-1`
- **2021-06-03T04:00:00+00:00** referred to Committee on Tax Policy `referral-committee`
- **2021-06-09T04:00:00+00:00** reported with recommendation without amendment `committee-passage`
- **2021-06-09T04:00:00+00:00** referred to second reading
- **2021-06-09T04:00:00+00:00** read a second time `reading-2`
- **2021-06-09T04:00:00+00:00** placed on third reading
- **2021-06-09T04:00:00+00:00** placed on immediate passage
- **2021-06-09T04:00:00+00:00** read a third time `reading-3`
- **2021-06-09T04:00:00+00:00** passed; given immediate effect Roll Call # 322 Yeas 87 Nays 22 Excused 0 Not Voting 1 `passage`
- **2021-06-09T04:00:00+00:00** inserted full title
- **2021-06-09T04:00:00+00:00** returned to Senate
- **2021-06-10T04:00:00+00:00** GIVEN IMMEDIATE EFFECT
- **2021-06-10T04:00:00+00:00** FULL TITLE AGREED TO
- **2021-06-10T04:00:00+00:00** ORDERED ENROLLED
- **2021-06-15T04:00:00+00:00** PRESENTED TO GOVERNOR 06/10/2021 02:30 PM `executive-receipt`
- **2021-06-16T04:00:00+00:00** APPROVED BY GOVERNOR 06/15/2021 01:02 PM `executive-signature`
- **2021-06-16T04:00:00+00:00** FILED WITH SECRETARY OF STATE 06/15/2021 02:20 PM
- **2021-06-16T04:00:00+00:00** ASSIGNED PA 0027'21 WITH IMMEDIATE EFFECT

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/95a0e72c-9711-4bbf-bdce-b0c337c76e14`. Confidence: reported (aggregated from official Michigan legislature records).