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State Municipal Index • MI
Michigan Property Tax Drift Index
State Avg Drift Score
48/100
Michigan Municipal Risk Briefing
State Comptroller & US Census Bureau (MI)August 2026
Michigan maintains an average TaxDrift Score of 48/100 across monitored jurisdictions. Overlapping municipal bond issuances and assessment equalization rollbacks determine local millage carrying costs under statutory rules.
Population
10,037,261
Avg Effective Tax Rate
1.1%
Total Tracked Muni Debt
$45.2B
Counties Monitored
12
Statutory Tax Caps & Voter-Approval Rules (MI)
Headlee Amendment and Proposal A cap taxable value increases at 5% or rate of inflation until sale.
Audited Counties in Michigan
Michigan County Tax Drift Leaderboard
0 Jurisdictions Audited| Rank | Jurisdiction | Drift Score | Risk Tier | Muni Debt / Cap | CAD Lag Spread | 3-Yr Tax Shock | Audit |
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