Property Tax Calculator
Estimate annual property tax with homestead exemption and assessment ratio. See monthly equivalent.
By Konstantin Iakovlev · Updated September 2026 · Source: NAHB Eye on Housing — Property Taxes by State, 2024
Annual Property Tax
$3,115.00
Monthly Equivalent
$259.58
Effective Rate
0.890%
Property Tax Breakdown
| Assessed Value | $350,000.00 |
| Homestead Exemption | $0.00 |
| Taxable Value | $350,000.00 |
| Annual Tax | $3,115.00 |
| Monthly Equivalent | $259.58 |
Use the Property Tax Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
Property taxes quietly shape the real cost of owning a home, and seeing both the annual and monthly figures in advance makes budgeting far more honest, particularly when you are weighing a purchase or a refinance. The estimate here draws on your home's market value, the tax rate, the assessment ratio, and any homestead exemption you qualify for.
The annual figure follows the formula (Market Value times Assessment Ratio minus Homestead Exemption) times Millage Rate. A millage rate is the tax per $1,000 of assessed value, and the calculator takes it as a percentage: 15 mills is 1.5%. The rate field opens at 0.89%, the national average effective rate (property tax paid as a share of home value, 2024 American Community Survey via NAHB), or at the state's average on a state page. An effective rate already reflects local assessment practices and exemptions, so use it with the assessment ratio at 100% and no exemption. Dividing that annual amount by 12 yields a monthly equivalent, which tends to slot more naturally into how most households actually plan their spending.
Treat the result as an estimate rather than a bill, because local levies, reassessments, and new municipal measures can move the actual number. The assessment ratio deserves particular attention, since it sets how much of your market value is taxable in the first place and is easy to overlook. Homestead exemption rules also differ from place to place and can trim your liability meaningfully, so it is worth confirming exactly how yours works.
Example: Estimating Property Tax with a Local Millage Rate
- 1 Imagine you're considering a home with a market value of $350,000. Your county assesses homes at 40% of market value and levies 15 mills, and you qualify for a $25,000 homestead exemption.
- 2 Enter $350,000, a tax rate of 1.5% (15 mills), an assessment ratio of 40% and a $25,000 exemption. Assessed value: $350,000 * 0.40 = $140,000. Taxable value: $140,000 - $25,000 = $115,000. Annual tax: $115,000 * 0.015 = $1,725.
- 3 Your estimated annual property tax is $1,725, or $1,725 / 12 = $143.75 a month. That is an effective rate of 0.493% of market value; without the exemption the tax would be $2,100, so the exemption saves $375 a year.
- 4 This $143.75 monthly amount would be added to your estimated mortgage principal, interest, and homeowners insurance to determine your total monthly housing cost. Without local figures, the default 0.89% national average on the same $350,000 home gives $3,115 a year ($259.58 a month).
Source: NAHB Eye on Housing — Property Taxes by State, 2024 · Last updated: September 2026
Frequently Asked Questions
What is the average property tax rate in the US?
What is a homestead exemption?
How can I lower my property tax bill?
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