Property Tax Calculator
Estimate your property tax bill from the market value, the local assessment ratio, any exemptions and the tax rate, entered as a percent or in mills. See the annual and monthly amount, the effective rate and what happens if your home is reassessed.
Share of market value that is taxed (e.g. 100%, 70%, 33.3%, 10%).
Homestead, senior, veteran… taken off the assessed value.
1 mill = $1 per $1,000 of taxable value = 0.1%.
How to use the Property Tax Calculator
- Enter the market value of the property.
- Set the assessment ratio used in your area (100% if taxes are based on full value).
- Enter any exemptions such as a homestead exemption, and yearly fixed fees.
- Choose percent or mill rate and enter the combined tax rate from your tax bill.
- Read the annual and monthly tax and check the reassessment table.
How property tax is calculated
Most local governments tax real estate in three steps:
- Assessed value = Market value × Assessment ratio. Some places tax 100% of market value; others tax only a fraction.
- Taxable value = Assessed value − Exemptions (for example a homestead, senior or veteran exemption).
- Tax = Taxable value × Tax rate, where the rate is a percentage or a mill rate: Tax = Taxable value × mills ÷ 1,000.
Example: a $350,000 home assessed at 100%, with a $25,000 homestead exemption and a 1.1% rate: ($350,000 − $25,000) × 0.011 = $3,575.00 a year, or $297.92 a month. The effective rate is 1.021% of market value.
Mill rate conversion table
One mill is one tenth of a cent: $1 of tax per $1,000 of taxable value, or 0.1%.
| Mill rate | Percent | Tax per $1,000 | Tax on $300,000 | Per month |
|---|---|---|---|---|
| 10 mills | 1.0% | $10 | $3,000 | $250 |
| 15 mills | 1.5% | $15 | $4,500 | $375 |
| 20 mills | 2.0% | $20 | $6,000 | $500 |
| 25 mills | 2.5% | $25 | $7,500 | $625 |
| 30 mills | 3.0% | $30 | $9,000 | $750 |
| 40 mills | 4.0% | $40 | $12,000 | $1,000 |
Your total rate is often the sum of several levies (county, city, school district, special districts). Add them together before entering the rate. Check your assessor's notice or last tax bill for the exact assessed value, exemptions and rate.
Frequently asked questions
How do I calculate property tax?
Multiply the market value by the assessment ratio to get the assessed value, subtract exemptions to get the taxable value, then multiply by the tax rate. For a $350,000 home at 100% assessment with a $25,000 exemption and a 1.1% rate: $325,000 × 0.011 = $3,575 a year.
What is a mill rate?
A mill is one thousandth of a dollar. A mill rate (or millage rate) is the tax in dollars per $1,000 of taxable value. 25 mills means $25 per $1,000, which equals a 2.5% rate. To convert, divide mills by 10 to get the percent.
What is an assessment ratio?
It is the percentage of market value that is subject to tax. Some jurisdictions assess at 100% of market value; others use a lower ratio, for example 10% for residential property in some states, combined with a higher rate. Your assessor's notice shows the assessed value.
What is the effective property tax rate?
The effective rate is your annual tax divided by the market value of the home. It lets you compare places with different assessment ratios, exemptions and nominal rates. US effective rates commonly range from about 0.3% to over 2% depending on the state.
How does a homestead exemption lower my tax?
A homestead exemption reduces the taxable value of your primary residence. A $25,000 exemption at a 1.1% rate saves $275 a year. Amounts and eligibility rules differ by state and county, and you usually need to apply.
How do I estimate the monthly escrow for property tax?
Divide the annual tax by 12. Lenders collect that amount with each mortgage payment and pay the bill for you, often keeping a cushion of up to two months.
Is my data stored?
No. The calculator runs in your browser and nothing you enter is sent anywhere.