Property Tax Calculator

Estimate US property tax from assessed value, local rate and any homestead exemption. See annual and monthly amounts plus a rate comparison.

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Annual property tax
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Monthly property tax
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Taxable value
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Rate comparison
Tax rateAnnualMonthly
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How It Works

Property tax is a local, recurring charge on real estate. The county assessor assigns your home an assessed value, then the total of all your local tax rates (county, school district, city, special districts) is applied to it. The math is simple: annual tax = (assessed value − homestead exemption) × tax rate. The monthly figure is that amount divided by 12, which is useful for budgeting since most lenders and many states collect in monthly installments.

The formula
taxable value = max(assessed value − exemption, 0). Annual tax = taxable value × rate. A $500,000 home at 1.2% with no exemption comes to $6,000 per year, or $500 per month. A $50,000 homestead exemption drops it to $5,400 per year.
Why rates vary so much
Your effective rate is the sum of every taxing authority that covers your address. That is why neighbors in different counties can pay very different taxes on identical homes, and why states like Texas and New Jersey (2%+) feel so much heavier than Hawaii or Alabama (under 0.6%).
Homestead exemptions
A homestead exemption subtracts a fixed amount (or caps the assessed value) before the rate is applied, and is available in most states to owners who live in the home. It can cut your bill by several thousand dollars a year in high-rate areas.

Frequently Asked Questions

How is property tax calculated?

Property tax is the assessed value of your home multiplied by the local tax rate. First, the county assessor assigns your home an assessed value (which may differ from the sale price). Then the local tax rate — set by your county, school district and other taxing authorities — is applied: annual tax = (assessed value − exemptions) × tax rate. This tool does exactly that, then divides by 12 for a monthly figure.

What is a typical US property tax rate?

The national average effective rate is around 1.0–1.2% of the home's value per year. It varies widely by state and county: places like Texas, Louisiana and New Jersey commonly exceed 2%, while states such as Hawaii and Alabama average well under 0.6%. The rate you pay is the sum of all the taxing districts that cover your address.

What is a homestead exemption and who qualifies?

A homestead exemption is a deduction from your home's assessed value that lowers the portion of the value subject to property tax. Rules vary by state: Florida allows $50,000, Texas a flat $100,000 for school districts, and some states cap the annual increase in assessed value instead. Generally you must live in the home as your primary residence and file an application with the county.

Why does the assessed value differ from what I paid?

Assessed value is the assessor's estimate of your home's market value, updated on a set schedule (annually in some states, less often in others). It can be higher or lower than your purchase price depending on local market movement, and in some states it is artificially limited by assessment caps that prevent it from jumping too fast after a sale.

Is this accurate?

It is a reasonable estimate, not an official figure. Real bills depend on your county's exact assessed value, all applicable district rates, exemption rules and any billing adjustments. Check your local tax assessor's website for the precise numbers — but this tool gets you within a useful ballpark for budgeting and comparisons.