Private build · latest Washtenaw assessment roll · taxes modeled at 2025 millage, not billed amounts

Who really pays — and who's shielded by the cap?

Michigan's Proposal A caps how fast a property's taxable value can rise while you own it, so two near-identical homes can owe wildly different taxes. This map shades every taxable parcel in Washtenaw County by that gap. Click any parcel for its numbers, search your address, or switch metrics to see who'd pay more or less under a fair, revenue-neutral rate — and the tax jump you'd face if you moved.

Color parcels by

County-wide totals

$67.37B
Estimated market value of taxable parcels
$9.22B
Taxable base hidden by the Proposal A cap
27.4%
Aggregate Prop A discount off assessed value
121,036
Taxable parcels, Washtenaw County (latest assessment roll)