FairAppeal

On the notice

What Is an Effective Property Tax Rate, Explained?

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

On the notice

An effective property tax rate is the yearly bill divided by the home's market value, not the millage printed on the notice. Posted millage multiplies assessed or taxable value. The effective rate tells you what share of what the house would actually sell for went to tax. Two houses with the same millage can still show different effective rates.

Look up if you are overpaying.

What is the difference between effective tax rate and millage?

The IAAO glossary defines effective tax rate as the current bill over property value, and notes it differs from the nominal rate when the assessment ratio is not 100 percent. Millage is the posted stack. Effective rate is the after-the-fact percentage of market.

Example: a $2,000 bill on a $200,000 market value is a 1 percent effective rate ($2,000 ÷ $200,000 = 0.01). That division is an example, not a county median.

Why does my effective property tax rate differ from the posted millage?

Because millage is multiplied against assessed or taxable value, which can sit below market after a ratio, a homestead, or a cap. A tax appeal is aimed at that printed value, which can move the bill and the effective rate with it. The property tax glossary and the millage rate page keep those two rates apart. If FairAppeal does not file, or the appeal does not succeed, you owe nothing. The Fair Appeal review itself carries no upfront cost.