taxbycounty

Property Tax Calculator

Estimate your annual property tax for any of 0 US counties. Select your state, pick your county, and enter your home value.

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Find Your County

Search for any of 0 US counties to calculate your estimated property tax

Estimates are based on U.S. Census Bureau, ACS 2019–2023 5-Year Estimates. Actual tax bills vary based on exemptions, assessments, and local levies. Always verify with your local county assessor.

How Property Tax Is Calculated

1

Select Your County

Choose your state, then pick your county from 3,100+ locations.

2

Enter Home Value

Type your home's estimated market value or use the slider.

3

See Your Estimate

Get your annual tax, monthly escrow, and effective rate instantly.

Property tax is the single largest tax most homeowners pay each year, yet many people don't understand how it's determined. Your property tax bill is based on two key factors: your home's assessed value and the local tax rate (often called a mill levy). The assessed value is set by your county assessor and may be based on recent sales of comparable homes, the cost to rebuild your property, or the income it could produce.

Tax rates are set annually by local governments and special districts — including school boards, fire districts, and municipal agencies — that each levy their own portion. Your total tax rate is the sum of all these overlapping levies. For example, a county with a 0.5% base rate, a 0.8% school levy, and a 0.2% fire district levy would have a combined rate of 1.5%. On a home assessed at $350,000, that means an annual tax bill of $5,250.

The effective tax rate — the metric we use across TaxByCounty — is calculated by dividing the actual taxes paid by the home's market value. This is a more accurate comparison tool than the nominal mill levy because it accounts for differences in assessment ratios between states. Nationally, the average effective rate is 0.00%, meaning a home worth $0 would generate roughly $0 in annual property taxes.

Most homeowners can reduce their tax burden through exemptions. Homestead exemptions (available in most states) reduce the taxable value of your primary residence, sometimes by $25,000 to $50,000. Senior citizen, veteran, and disability exemptions offer additional reductions. If you believe your assessed value is too high, you have the right to file a formal appeal with your county assessor — a process that succeeds more often than most homeowners realize.

Property Tax Rates by State

Average effective property tax rates for all 50 states and Washington D.C., sorted from lowest to highest. Click a state to explore its counties.

StateEffective RateAvg. Tax
National Average0.00%$0

Lowest & Highest Property Tax Counties

10 Lowest Property Tax Rates

CountyRateTax

10 Highest Property Tax Rates

CountyRateTax

Frequently Asked Questions

How is property tax calculated?
Property tax is calculated by multiplying your property's assessed value by the local tax rate (also called a mill levy). For example, if your home is assessed at $300,000 and the local tax rate is 1%, your annual property tax would be $3,000. The national average effective property tax rate is 0.00%, meaning a homeowner with the median home value of $0 pays roughly $0 per year.
What is an effective property tax rate?
The effective property tax rate is the actual percentage of a home's market value that is paid in property taxes each year. It is calculated by dividing the annual property tax payment by the home's market value. This rate is more useful for comparison than the nominal mill levy because it accounts for variations in how different states and counties assess property values. The national average effective rate is 0.00%.
How often are property taxes assessed?
Most counties reassess property values every 1 to 5 years, depending on state law. Some states like California only reassess upon sale or major improvements (Proposition 13). Others, like Colorado, reassess every two years. Your county assessor determines the assessed value, which is then multiplied by the tax rate to calculate your bill.
Can I appeal my property tax assessment?
Yes. Every state allows homeowners to appeal their property tax assessment if they believe the assessed value is too high. The process typically involves filing a formal appeal with your county assessor or a board of equalization within a set deadline (often 30 to 90 days after receiving your assessment notice). Providing comparable sales data, a recent appraisal, or evidence of property defects can strengthen your case.
What are common property tax exemptions?
Common property tax exemptions include homestead exemptions (which reduce the taxable value of your primary residence), senior citizen exemptions, veteran and disabled veteran exemptions, disability exemptions, and agricultural use exemptions. Eligibility and savings vary by state and county. In some states, a homestead exemption can reduce your taxable value by $25,000 to $50,000 or more.
How do property taxes vary by state?
Property taxes vary dramatically by state. States like Hawaii, Alabama, and Louisiana have some of the lowest effective rates (below 0.5%), while New Jersey, Illinois, and Connecticut have some of the highest (above 1.5%). The national average effective rate is 0.00%. These differences reflect each state's tax structure — states with no income tax often rely more heavily on property taxes.
What does my property tax pay for?
Property taxes fund essential local services including public schools (the largest share, typically 40-60% of your bill), police and fire departments, road maintenance, parks and recreation, libraries, water and sewer infrastructure, and local government operations. The specific breakdown varies by county and is determined by the budgets of overlapping taxing jurisdictions.

Data updated: March 2026

Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.

Estimates are informational only and are not tax, legal, financial, or assessment appeal advice. Verify parcel-specific amounts with the county assessor or tax collector.