Property Tax Calculator — Estimate US Property Tax by State
Annual Property Tax
$0
Monthly Property Tax
$0
Assessed Value
$0
Effective Tax Rate
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How to Calculate Property Tax
Property tax is a major expense for homeowners in the United States, varying dramatically from state to state. This calculator helps you estimate your annual and monthly property tax by multiplying your home's assessed value by the effective tax rate for your state. You can also adjust the assessment ratio since some states assess property at a fraction of market value.
The pre-filled rates represent average effective property tax rates by state for 2025, sourced from the Tax Foundation and Census Bureau data. Actual rates vary by county and municipality, so check with your local assessor's office for precise figures. Property taxes fund essential services including public schools, fire departments, police, and road maintenance.
Homeowners may qualify for exemptions that reduce their tax burden, such as homestead exemptions, senior citizen exemptions, veteran exemptions, or disability exemptions. Many states also cap annual assessment increases. If you believe your property is over-assessed, most jurisdictions allow you to file a formal appeal within a specified time window.
Frequently Asked Questions
How is property tax calculated?
Property tax is calculated by multiplying the assessed value of your property by the local tax rate (mill rate). Assessed value may differ from market value depending on your state and county assessment ratio. The formula is: Annual Property Tax = Assessed Value x Tax Rate.
Which US states have the highest property taxes?
New Jersey has the highest effective property tax rate at about 2.23%, followed by Illinois (2.08%), New Hampshire (1.93%), Connecticut (1.79%), and Vermont (1.76%). Hawaii has the lowest at about 0.27%.
Can I deduct property taxes on my federal return?
Yes, property taxes are deductible on your federal income tax return if you itemize deductions. However, the SALT (State and Local Tax) deduction is capped at $10,000 per year ($5,000 if married filing separately) under current law through 2025.
How often are property taxes reassessed?
Reassessment frequency varies by state and county. Some jurisdictions reassess annually, while others do so every 2-5 years. California, under Proposition 13, only reassesses upon sale or new construction. You can appeal your assessment if you believe it is too high.