Property Tax Calculator
Enter your property's assessed value and the local tax rate (mill rate or percentage) to estimate your annual property tax. Add any applicable exemptions.
Reviewed by the ToolNestr Editorial Team — July 2026
Property tax rates (mill rates) vary widely by location and change over time — enter your local rate and confirm it with your county or municipal tax authority. Estimate only, not tax advice.
How property tax is calculated
Property tax is calculated using the formula: Annual Tax = (Assessed Value - Exemption) × Rate. When using mill rate: Tax = (Value ÷ 1,000) × Mill Rate. When using percentage: Tax = Value × (Rate / 100).
Property taxes are typically paid annually or semi-annually, and many lenders collect them as part of your monthly mortgage payment through an escrow account. Understanding your property tax helps you budget for homeownership, compare homes in different tax jurisdictions, and evaluate the impact of exemptions or assessment appeals on your total housing cost.
Worked example
A home assessed at $350,000 with a mill rate of 20 and a $25,000 homestead exemption.
About property taxes
Property taxes are the lifeblood of local government funding. They pay for public schools (the largest share), roads, bridges, parks, libraries, police, fire departments, emergency services, and local infrastructure. Because property values tend to be stable and visible, property taxes provide a reliable revenue stream that does not fluctuate as much as sales or income tax during economic cycles.
How to use it
- Enter your property's assessed value (found on your county assessor's website or tax bill).
- Select mill rate or percentage and enter your local rate.
- Optionally enter any exemptions you qualify for (homestead, senior, veteran, etc.).
- View your annual property tax, monthly cost, and effective tax rate.
When to use this tool
Homebuyers use it to compare property taxes across different neighborhoods and counties before making an offer. Homeowners use it to check if their tax bill is correct and to estimate the impact of exemptions. Sellers use it to provide accurate tax information to potential buyers. It is also useful when appealing an assessment to see what your tax would be at a lower value.
Tips for property taxes
- Always apply for all exemptions you qualify for — they can save hundreds or thousands annually.
- Check your assessed value against recent comparable sales in your area to ensure accuracy.
- If you buy a home, verify the property tax history — some properties have grandfathered lower rates.
Homebuyer
Compare property tax estimates for homes in different neighborhoods and counties before making an offer. Know exactly what the annual tax burden will be.
Current Homeowner
Verify your annual tax bill is correct based on your assessed value and rate. Check if exemptions are properly applied and estimate the impact of an assessment appeal.
Real Estate Investor
Calculate property tax as part of your total investment cost analysis. Compare tax burdens across different markets to identify the most tax-efficient investment locations.
Senior / Retiree
Check if you qualify for senior citizen property tax exemptions or freeze programs in your area. Estimate the savings from exemptions on a fixed retirement income.
How to use the property tax calculator
Enter the assessed value
Find your property's assessed value on your latest tax bill or your county assessor's website. This may differ from market value or your purchase price.
Enter the tax rate
Select mill rate or percentage and enter your local rate. Mill rates are typically listed on tax bills. If unsure, check your county website or use the effective rate from your last bill.
Add exemptions
Enter any homestead, senior, veteran, or other exemptions that reduce your taxable value. Check with your county for all exemptions you may be eligible to claim.
Tips for managing property taxes
File for all eligible exemptions
Many homeowners miss out on exemptions they qualify for. Homestead exemptions alone can reduce your taxable value by $25,000 to $100,000 depending on your state. Senior, veteran, disability, and solar energy exemptions can provide additional savings.
Appeal if your assessment is too high
If comparable homes in your neighborhood have sold for less than your assessed value, or if your assessment increased more than the market justifies, file an appeal. Gather 3-5 recent comparable sales and present them to the assessment board.
Consider the tax impact before buying
Property taxes can vary dramatically between neighboring counties or even streets. A home in a high-tax district might cost thousands more per year than a similar home just across the border. Factor this into your monthly budget when comparing properties.
Related tools
- Sales Tax Calculator — Estimate sales tax on purchases for any state and local jurisdiction.
- US Income Tax Calculator — Estimate federal income tax with progressive brackets.
Frequently asked questions
What is property tax?
Property tax is an ad-valorem tax levied by local governments on real estate. It is based on the assessed value of your property and is the primary funding source for public schools, roads, police, fire departments, and other municipal services.
How is property tax calculated?
Property tax = (Assessed Value ÷ 1,000) × Mill Rate. A mill is $1 of tax per $1,000 of assessed value. If your home is valued at $300,000 and the mill rate is 20, your annual tax is ($300,000 ÷ 1,000) × 20 = $6,000.
What is a mill rate?
A mill rate (or millage rate) is the tax per $1,000 of a property's assessed value. One mill equals $1 of tax for every $1,000 of value. Mill rates are set by local governments and can include separate rates for schools, county, city, and special districts.
What is the difference between market value and assessed value?
Market value is what a property would sell for in the open market. Assessed value is the value assigned by the county assessor for tax purposes, which may be a percentage of market value (assessment ratio) or a recent appraisal. Your tax bill is based on assessed value, not market value.
What are common property tax exemptions?
Common exemptions include homestead exemptions (for primary residences), senior citizen exemptions, veterans exemptions, disability exemptions, and exemptions for religious or charitable organizations. These reduce the assessed value before tax is calculated.
How often are properties reassessed?
Reassessment schedules vary by jurisdiction — from annually to every few years or only when the property is sold. Some areas have annual adjustments for inflation, while others only reassess after a transfer of ownership.
Can I appeal my property tax assessment?
Yes. If you believe your assessed value is too high compared to similar properties, you can file an appeal with your county's assessment appeals board. You will need evidence like recent comparable sales or an independent appraisal.
Are property taxes deductible?
Yes, property taxes on real estate are deductible on your federal income tax return if you itemize deductions. The Tax Cuts and Jobs Act capped the deduction for state and local taxes (SALT) at $10,000 per year.
What happens if I don't pay property taxes?
Unpaid property taxes become a lien on your property. The taxing authority can eventually foreclose on the property to collect the unpaid taxes. Most jurisdictions offer payment plans or deferrals for hardship cases.
Do I pay property tax on a new home purchase?
Yes, but the timing depends on your closing date. At closing, you typically reimburse the seller for taxes they have already paid for the current year (prorated). Going forward, you pay the taxes directly or through your mortgage escrow account.
Sources & references
This tool uses standard formulas and reference values from:
- • IRS — federal tax brackets, standard deduction and instructions for the tax year. irs.gov
- • U.S. SEC — Investor.gov, compound interest and investment reference material. investor.gov
- • Official national tax authority for the relevant country — link the exact rate schedule used.
Estimates only, not tax or financial advice. Confirm current figures with the official source or a qualified professional.