Property Tax Calculator
Estimate your annual and monthly property tax liabilities with complete transparency. Whether estimating escrow payments for a new home purchase, evaluating property tax reassessments, or comparing tax rates across county borders, this tool calculates precise tax obligations from millage or tax percentages.
Fair market value or purchase price of the residential property
Percentage of market value subject to taxation (100% in many states)
Percentage rate (e.g. 1.25%) or mill rate (e.g. 12.5 mills)
Toggle ON if your county tax bill specifies mills per $1,000 assessed value
Total yearly real estate ad valorem tax bill
How to Use This Calculator
- Enter your home market value or contract purchase price.
- Enter your county assessment ratio (defaults to 100% for jurisdictions taxing at full value).
- Enter the local tax percentage rate (national US average is ~1.1% to 1.3%).
- Toggle "Millage Rate" if your local tax bill is expressed in mills per thousand.
- View the total annual tax and monthly escrow amount.
Formula & Calculation Methodology
Property tax is calculated by multiplying the market value by the local assessment ratio to determine the taxable assessed value, then applying the local municipality, school district, and county tax percentage or millage rate.
Worked Example
$375,000 home assessed at 100% with a 1.25% municipal and school tax rate
Frequently Asked Questions
What is a millage rate and how does it convert to a percentage?↓
A mill represents one-tenth of a cent ($0.001) or $1 in tax per $1,000 of assessed value. A millage rate of 25 mills equals 25 ÷ 1,000 = 2.5% tax rate.
Why does assessed value often differ from fair market value?↓
County tax assessors conduct reassessments periodically (every 1 to 5 years depending on the state). In rising markets, assessed values often lag current commercial market prices by a substantial margin.
Do homestead exemptions lower this property tax bill?↓
Yes. Primary residence homestead exemptions typically subtract a fixed dollar amount (e.g., $25,000 to $50,000) or percentage from the assessed value before calculating tax, reducing your final bill.
What limitation should I know about supplemental reassessments upon home purchase?↓
In many jurisdictions (such as California under Prop 13 or Florida), purchasing a home triggers a supplemental reassessment to the new purchase price, resulting in a higher future tax bill than the previous owner paid.
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Open calculator →Source Citation & Disclaimer
Informational tool only; not licensed tax, legal, or financial advice.