Mill rate

The property tax rate expressed as dollars per $1,000 of assessed value. A 20-mill rate on a $200,000 assessed value is $4,000 a year in tax.

Also called millage rate · Taxes & insurance · Updated September 2026

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Part 1 of 4

Why a seller cares

The mill rate turns the assessed value into the tax bill, and buyers' lenders use it to estimate escrow. A rate change after a levy or a reassessment is why the buyer's estimate can differ from your bill.

Part 2 of 4

A simple example

Assessed value $180,000, mill rate 22. The tax is $180,000 times 0.022, or $3,960 a year.

Mill rate: a simple example
The arithmeticFor this home
Assessed value$180,000
Mill rate, 22 mills$22 per $1,000 of assessed value
Annual tax$3,960

Mills are dollars per thousand. The bill is the rate times the assessment.

Part 3 of 4

What people get wrong

That the rate is a percentage. A 22-mill rate is 2.2%, and the difference has confused more than one estimate.

Part 4 of 4 · where to read next

Where it appears in the sale

What a definition is, and what it isn't

Keighbor is a software company, not a law firm, brokerage, or tax adviser. This is general information, not legal, tax, financial, or real estate advice about your sale. Your situation may differ. Before acting on a contract, disclosure, title, tax, or pricing question, ask an appropriately licensed professional in your state.

Written and researched by Keighbor Research · drawn from the reference glossary · how we research and check what we publish

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