FinanceCalcs
Property Tax Calculator
Estimate your annual property tax bill, monthly escrow amount, and effective tax rate. Compare your state's average rate or enter your actual local rate for a precise estimate.
Includes assessment ratio, homestead exemption, and a full comparison of property taxes across all 50 states.
Property Tax Calculator
Assessed Value: $0 | Effective Rate: 0%
Annual Tax: $0
- Home Value
- Annual Tax
Property Tax by State — Your Home Value ($0)
| State | Avg Effective Rate | Typical Assessment | Est. Annual Tax | Monthly Escrow | vs. Your State |
|---|
*Rates are average effective rates (tax as % of market value) based on Census Bureau and Tax Foundation data. Your highlighted state is marked in green. Actual rates vary significantly by county and municipality.
"Property taxes are one of the most significant and overlooked costs of homeownership — they never stop, even after the mortgage is paid off."
— Real Estate Finance Principle
How property taxes are calculated
Property tax is calculated by multiplying the taxable assessed value of your property by the local tax rate (also expressed as a mill rate). The taxable assessed value may differ from market value due to the assessment ratio and any applicable exemptions.
The process: your local assessor determines your property's market value. That's multiplied by the assessment ratio (the percentage of market value used for taxation — 100% in many states, but as low as 10–50% in others like Arkansas and Louisiana). Any exemptions (homestead, senior, veteran) are then subtracted to arrive at the taxable value. Finally, the tax rate is applied.
Tax rates are set by local governments — counties, cities, school districts, and special districts all levy their own rates, which are added together into your total rate. This is why rates vary so dramatically even within a state.
lightbulb Highest vs. Lowest Property Tax States
| State | Avg Eff. Rate | Tax on $350K Home |
|---|---|---|
| New Jersey | 2.23% | $7,805/yr |
| Illinois | 2.08% | $7,280/yr |
| Connecticut | 1.92% | $6,720/yr |
| National Avg. | 1.10% | $3,850/yr |
| Hawaii | 0.29% | $1,015/yr |
| Alabama | 0.37% | $1,295/yr |
| Colorado | 0.49% | $1,715/yr |
The gap between the highest and lowest property tax states is enormous — the same $350,000 home costs over $6,700 more per year in New Jersey than in Hawaii.
Property Tax FAQs
Can I appeal my property tax assessment?
Yes — most jurisdictions have a formal appeal process. If you believe your assessed value is higher than fair market value (or higher than comparable properties in your neighborhood), you can file an appeal with your local assessor or Board of Review. The burden of proof is on you to show the assessment is incorrect. Successful appeals can significantly reduce your bill — and the reduction is typically permanent until the next reassessment.
What is a homestead exemption?
A homestead exemption reduces the taxable assessed value of your primary residence by a fixed dollar amount or percentage. Florida's homestead exemption is $50,000 off assessed value; Texas exempts 20% of assessed value for school taxes. These are only available for owner-occupied primary residences — not rental properties or second homes. Apply through your county assessor's office.
How often are properties reassessed?
Assessment frequency varies by state: annually in some, every 1–4 years in most, and as infrequently as every 5+ years in others. California's Prop 13 limits assessment increases to 2%/year until the property sells. Some states only reassess when a property changes hands. Infrequent reassessment can create large "assessment shock" when properties are finally revalued.
Are property taxes deductible?
For federal income taxes, property taxes on your primary and secondary residences are deductible if you itemize — but the SALT deduction (state and local taxes including property tax) is capped at $10,000 per household under current law (through 2025). For high-tax states, this cap significantly limits the federal benefit of state property tax deductions.
Terminology
Mill Rate
The tax rate expressed as dollars per $1,000 of assessed value. A mill rate of 20 means $20 per $1,000, or 2% of assessed value. To convert: mill rate ÷ 10 = percentage rate.
Assessment Ratio
The percentage of a property's market value used as the assessed value for tax purposes. Some states assess at full market value (100%); others assess at a fraction. The effective tax rate on market value = stated rate × assessment ratio.
Effective Property Tax Rate
Annual taxes paid as a percentage of the property's market value. The most useful comparison metric across jurisdictions with different assessment ratios and stated rates.
Escrow
An account held by your mortgage lender into which you pay 1/12 of your annual property tax bill each month. The lender pays the tax bill on your behalf when due. Most lenders require escrow for property taxes and insurance.
Taxable Value
Assessed value minus all applicable exemptions. The figure to which the tax rate is actually applied. Lower than assessed value if exemptions apply.
Special Assessment
A one-time or periodic charge for specific local improvements (sidewalks, sewers, streetlights) levied against properties that benefit from those improvements. Separate from regular property taxes and not always included in standard tax bills.
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