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On the notice

Millage Rate Explained: How It Turns Value Into Tax

FairAppeal Editorial Team · August 21, 2026 · 2 min read

On the notice

A millage rate is the local tax rate, written as mills, that turns a value on the roll into a yearly bill. One mill is a dollar of tax on every thousand dollars of the value the county is allowed to tax. Cities, schools, and special districts stack their mills on the same parcel.

Look up if you are overpaying.

How many dollars is one mill of property tax?

The IAAO glossary treats a mill as one-thousandth of one dollar. Twenty mills is the same idea as two percent: twenty dollars of tax on each thousand dollars of the value being taxed. A home with $300,000 of taxable value at twenty mills produces a $6,000 bill. Change the mills and every house in the district moves together. Change one house's value and only that bill moves.

Can a property tax appeal change the millage rate?

No. Millage is a budget number set by elected bodies. A property tax appeal is aimed at the value underneath those mills. The property tax glossary and the assessed value page keep those two sides apart. There are no upfront costs with Fair Appeal, and FairAppeal handles the entire appeal on your behalf when a filing goes forward.