---
type: "Bill"
title: "Individual income tax: home heating credit; adjustments based on Detroit Consumer Price Index; change to United States Consumer Price Index. Amends sec. 527a of 1967 PA 281 (MCL 206.527a)."
description: "Individual income tax: home heating credit; adjustments based on Detroit Consumer Price Index; change to United States Consumer Price Index. Amends sec. 527a of 1967 PA 281 (MCL 206.527a)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2025-2026"
identifier: "HB 4543"
citation: "Michigan HB 4543 (2025-2026)"
classification: ["bill"]
subjects: ["Individual income tax: home heating credit"]
status: "enacted"
primary_sponsors: ["Bill Schuette"]
version_count: 5
action_count: 32
vote_count: 2
first_action: "2025-06-03"
last_action: "2025-12-31"
source: "openstates"
source_identifier: "ocd-bill/c3743ede-62c5-4948-849d-03cc74fb06a6"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2025-HB-4543"
source_hash: "785ce36b6fb67df75afe0b6c0d378cd0a3945e3e5458fdff7453b05569e42cd3"
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 HB 4543 (2025-2026) — Individual income tax: home heating credit; adjustments based on Detroit Consumer Price Index; change to United States Consumer Price Index. Amends sec. 527a of 1967 PA 281 (MCL 206.527a).

## 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](https://legislature.mi.gov/documents/2025-2026/billengrossed/House/pdf/2025-HEBH-4543.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billengrossed/House/pdf/2025-HEBS-4543.pdf)
3. **House Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billconcurred/House/pdf/2025-HCB-4543.pdf)
4. **House Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billintroduced/House/pdf/2025-HIB-4543.pdf)
5. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/publicact/pdf/2025-PA-0055.pdf)

## Votes

- passed; given immediate effect Roll Call #176 Yeas 88 Nays 14 Excused 0 Not Voting 8 — **88–14** (pass) · lower
- PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 343 YEAS 31 NAYS 4 EXCUSED 2 NOT VOTING 0 — **31–4** (pass) · upper

## Sponsors

- Bill Schuette — primary (person)
- Denise Mentzer — cosponsor (person)
- Joseph Pavlov — cosponsor (person)
- Ken Borton — cosponsor (person)
- Matt Bierlein — cosponsor (person)

## Timeline

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

- **2025-06-03** introduced by Representative Rep. Bill Schuette `introduction`
- **2025-06-03** read a first time `reading-1`
- **2025-06-03** referred to Committee on Economic Competitiveness `referral-committee`
- **2025-06-04** bill electronically reproduced 06/03/2025
- **2025-08-19** rule suspended
- **2025-08-19** motion to discharge committee approved
- **2025-08-19** placed on second reading
- **2025-08-19** read a second time `reading-2`
- **2025-08-19** placed on third reading
- **2025-08-19** placed on immediate passage
- **2025-08-19** read a third time `reading-3`
- **2025-08-19** passed; given immediate effect Roll Call #176 Yeas 88 Nays 14 Excused 0 Not Voting 8 `passage`
- **2025-08-19** transmitted
- **2025-08-26** PASSED BY HOUSE WITH IMMEDIATE EFFECT `passage`
- **2025-08-26** REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT `referral-committee`
- **2025-12-16** DISCHARGE COMMITTEE APPROVED
- **2025-12-16** PLACED ON ORDER OF GENERAL ORDERS
- **2025-12-16** RULES SUSPENDED FOR IMMEDIATE CONSIDERATION
- **2025-12-16** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2025-12-16** PLACED ON ORDER OF THIRD READING
- **2025-12-16** RULES SUSPENDED
- **2025-12-16** PLACED ON IMMEDIATE PASSAGE
- **2025-12-16** PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 343 YEAS 31 NAYS 4 EXCUSED 2 NOT VOTING 0 `passage`
- **2025-12-16** INSERTED FULL TITLE
- **2025-12-16** RETURNED TO HOUSE
- **2025-12-17** returned from Senate without amendment with immediate effect and full title
- **2025-12-17** full title agreed to
- **2025-12-17** bill ordered enrolled
- **2025-12-18** presented to the Governor 12/18/2025 03:04 PM `executive-receipt`
- **2025-12-31** approved by the Governor 12/23/2025 10:32 AM `executive-signature`
- **2025-12-31** filed with Secretary of State 12/23/2025 12:02 PM
- **2025-12-31** assigned PA 55'25 with immediate effect

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/c3743ede-62c5-4948-849d-03cc74fb06a6`. Confidence: reported (aggregated from official Michigan legislature records).