Property tax guide
How Property Taxes Work
Property tax is an annual local tax on real estate, calculated by multiplying a home's assessed value by the local mill rate; it funds schools, police, fire departments, and other municipal services. The effective rate, taxes paid divided by market value, is the standard way to compare burden across counties, since assessment practices differ widely.
What Are Property Taxes?
Property taxes are annual taxes levied by local governments on real estate. They are the primary funding source for local services including public schools, fire departments, police, road maintenance, and local government operations. Unlike federal income taxes, property taxes are set and collected locally, meaning rates vary dramatically from county to county.
How Property Taxes Are Calculated
Your property tax bill is determined by two factors:
Property Tax = Assessed Value × Tax Rate (Mill Rate)
Assessed value is determined by your local tax assessor, usually based on the property's fair market value. Some states assess at full market value, while others use a fraction (e.g., 50% in some states).
Tax rate (mill rate) is set by local taxing authorities. One "mill" equals $1 of tax per $1,000 of assessed value. A 20-mill rate means you pay $20 per $1,000 of assessed value.
What Is an Effective Tax Rate?
The effective tax rate is the actual percentage of a home's market value paid in property taxes. It accounts for all the complexities of assessment ratios, exemptions, and multiple taxing jurisdictions. On PlainPropertyTax, we calculate it as:
Effective Rate = Median Taxes Paid ÷ Median Home Value
This is the most useful comparison metric because it normalizes across different assessment practices. The national average effective rate is approximately 1.1%.
Worked example, using the current national medians
Median home value: $227,791 · Median taxes paid: $1,993
$1,993 ÷ $227,791 = 0.87% effective rate
These are the same Census ACS 2024 medians shown on our homepage; any county's own effective rate divides its own median tax by its own median home value the same way, see the county lookup.
Two homes worth the same can carry very different tax bills. The effective rate, not the sticker price, is what to compare.
Why Do Rates Vary So Much?
Property tax rates vary dramatically across the US for several reasons:
- Local funding decisions: Communities that fund more services locally (schools, parks, emergency services) tend to have higher rates.
- State policies: Some states limit property tax rates by law. Others have no income or sales tax and rely more heavily on property taxes.
- Home values: Areas with very high home values can collect more revenue at lower rates. Rural areas with low values may need higher rates.
- Assessment practices: How often properties are reassessed (annually vs. every few years) and whether there are assessment caps affects bills.
Where Do Property Tax Dollars Go?
Property tax is the backbone of local budgets. Across the US, a typical dollar of property tax is distributed roughly as follows, the exact split varies by community.
Where each dollar goes
A typical U.S. property tax dollar
Illustrative national averages. Public-school funding alone is usually the single largest line item in a property tax bill. Your community's split depends on which services it funds locally versus through state aid or other taxes.
Source: U.S. Census Bureau, 2022 Census of Governments (State & Local Government Finances); Urban Institute State & Local Finance Initiative.
About Our Data
PlainPropertyTax uses data from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. The ACS surveys millions of households annually and reports median property taxes actually paid by homeowners in every county. This self-reported data captures real tax bills including all exemptions and deductions homeowners receive. See our methodology for the exact tables and formulas used.
Explore property tax data: Browse by state · Lowest taxes · Tax estimator
PlainPropertyTax is rendered directly from the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, no number is typed in by an editor. The 'Where do property tax dollars go' ranges are illustrative reference figures from U.S. Census of Governments surveys and are not computed from the ACS county dataset; all other figures on this page are drawn from Census ACS records. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.