Property Tax Calculator

How Property Taxes Are Calculated

Property taxes are calculated by multiplying your home's assessed value by the local tax rate. The assessed value is determined by your county assessor and is typically a percentage of your home's market value, known as the assessment ratio. The tax rate, set by local governments, varies by county, city, and school district. Many areas use a mill rate, where one mill equals $1 of tax per $1,000 of assessed value. After applying any exemptions you qualify for, the result is your annual property tax bill, which is often paid monthly through your mortgage escrow account.

Understanding Assessed Value vs Market Value

Assessed value is the dollar value assigned to your property by the local tax assessor for taxation purposes. It's often lower than market value, which is what your home would sell for on the open market. The assessment ratio determines the relationship between these values. For example, if your home's market value is $400,000 and your county uses an 80% assessment ratio, your assessed value would be $320,000. Some states assess at 100% of market value, while others use lower percentages. The assessed value is multiplied by the tax rate to determine your annual property tax.

What Is a Mill Rate?

A mill rate is a tax rate expressed as the amount per $1,000 of assessed property value. One mill equals one-tenth of one cent, or $1 per $1,000. For example, if your assessed home value is $300,000 and your total mill rate is 25 mills, your annual property tax would be $300,000 / 1,000 * 25 = $7,500. Mill rates are commonly used in the Northeast and Midwest United States. Multiple mill rates are often combined: your city, county, school district, and special districts each levy mills, which are summed to create your total mill rate.

Common Property Tax Exemptions

• Homestead Exemption: Reduces the taxable value of your primary residence, offered by most states, typically $25,000 to $50,000.
• Senior Citizen Exemption: Additional reductions for homeowners over age 65, varies by location.
• Veteran Exemption: Available to qualifying veterans, amounts vary widely by state.
• Disability Exemption: For homeowners with permanent disabilities, reducing assessed value or tax rate.
• Agricultural Exemption: Lower rates for land used for farming or agriculture.
• Circuit Breaker Programs: Caps property taxes as a percentage of income for low-income homeowners.

Why Property Taxes Increase

Property taxes can increase for several reasons. Rising home values lead to higher assessed values and thus higher taxes. Local governments may raise tax rates to fund schools, infrastructure, public safety, and services. New bonds and levies approved by voters add to the tax burden. Periodic reassessments by your county can significantly increase your assessed value, especially in appreciating markets. Loss of exemptions, such as when you reach age limits or property use changes, can also raise taxes. Some states have laws limiting annual tax increases, while others allow unlimited growth.

How to Lower Your Property Taxes

You can potentially lower property taxes by applying for all exemptions you qualify for, such as homestead, senior, or veteran exemptions. If you believe your home is over-assessed, file a property tax appeal with evidence of your home's true value using recent comparable sales. Keep your home's condition average and avoid major improvements right before assessment periods. Check your property record for errors in square footage, lot size, or features that could inflate your assessed value. In some states, transferring property to a trust or family member may reset or cap assessed values under certain conditions.

Property Tax Payment Options

Most homeowners with mortgages pay property taxes through an escrow account, where 1/12 of the annual tax is included in your monthly mortgage payment. The lender collects these funds and pays your tax bill when due. If you own your home outright, you'll receive a tax bill directly from your county, typically payable annually or semi-annually. Some counties offer monthly payment plans to spread the cost. Paying late results in penalties and interest, and failure to pay can eventually lead to a tax lien and foreclosure. Always verify your tax bill is paid on time, whether by escrow or directly.

Property taxes factor into your home affordability calculation. Use the Mortgage Calculator to see total monthly housing costs including taxes. Compare locations with the Price Per Square Foot Calculator.