The Property Tax Formula
Annual Property Tax = Assessed Value × Tax Rate
Why This Calculator Asks for Your Own Rate
Property tax rates in the US vary enormously — not just state to state, but often county to county and even school district to school district within the same city. National average rates can range from under 0.3% to over 2% of assessed value, so a single built-in rate would be misleading for most users. Enter your specific local rate for an accurate estimate.
Assessed Value vs. Market Value
Your home's "assessed value" for tax purposes is set by your local tax assessor and may differ from its actual market value — some jurisdictions assess at 100% of market value, while others use a lower assessment ratio (e.g., assessing at 80% or even less of market value). Check your property tax bill or county assessor's website for your specific assessed value.
Where to Find Your Local Rate
Your county or city tax assessor's website typically publishes current property tax (mill) rates, or you can find your effective rate by dividing a recent tax bill by your assessed value.