Property tax is an annual bill from your local government based on what your real estate is worth

Property tax is a yearly payment you owe to your county or municipality for owning land or a building. The tax bill is calculated by multiplying your property's assessed value by the local tax rate. Unlike income tax (which is federal) or sales tax (which varies by purchase), property tax goes directly to local services: schools, fire departments, roads, libraries, and county administration.

The amount you pay depends on three things: the assessed value of your property, the tax rate in your jurisdiction, and any exemptions you may have. A $300,000 house in one county might generate a $3,000 annual bill, while the same house in another county could cost $6,000 or more. The difference is the local tax rate, which is set by your county assessor's office and the local government budget.

Property tax is separate from estate tax. Estate tax is a one-time federal tax on the total value of a deceased person's assets when they pass. Property tax is a recurring annual bill you pay while you own the property, whether you live in it or rent it out.

Key Takeaways

  • Property tax is calculated by multiplying your property's assessed value by your local tax rate, and the bill arrives annually from your county or municipality.
  • Tax rates vary dramatically by location—the same property can have annual bills ranging from under $1,000 to over $10,000 depending on the county or state.
  • Your assessed value is not the same as what you paid for the house or what it would sell for today; assessors use their own methods and you can challenge the assessment.
  • Homeowners may reduce their bill through exemptions like primary residence exemptions, senior exemptions, or disability exemptions, depending on what your state and county offer.
  • If you have a mortgage, your lender typically requires you to pay property tax through an escrow account as part of your monthly payment.

How the assessed value is determined

Your property tax bill starts with an assessed value, which is an estimate of what your property is worth. This is not the price you paid for it, and it is not necessarily what a real estate agent would list it for. The county assessor's office assigns this value, usually by looking at recent sales of similar properties in your area, the condition of your building, the size of the lot, and local market trends.

Assessments happen on different schedules depending on your state. Some counties reassess every year. Others do it every three to five years, or only when the property changes hands. A few states (like California) use a different system: they assess the property at the sale price and then increase it by a small percentage each year, regardless of market changes.

You do not have to accept the assessed value. If you believe it is too high, you can file a formal challenge or appeal with your assessor's office. The process and deadline vary by county, but typically you have 30 to 60 days after receiving your assessment notice to request a review. You may need to provide evidence: recent appraisals, comparable sales data, or photos showing damage or needed repairs. Some counties charge a small fee to file an appeal; others do not.

Tax rates and how they are set

The tax rate (also called the millage rate) is set by your local government and expressed as a percentage or as dollars per $1,000 of assessed value. For example, a rate of 1.2% means you pay $1.20 in tax for every $100 of assessed value. A rate of 12 mills means you pay $12 for every $1,000 of assessed value (which is the same as 1.2%).

Tax rates are determined by the county or municipality's budget needs. If the school district needs more money, the city needs road repairs, or the county needs to fund services, the rate may increase. Rates are set by elected officials or a tax board, and the process is usually public—you can attend meetings and see how the budget is built. Rates change year to year and vary widely by location. A rural county might have a rate of 0.5%, while an urban area might be 2% or higher.

Some properties are taxed at different rates. Agricultural land, for example, might be taxed at a lower rate than residential or commercial property. A few states have separate rates for different property types. Check your county assessor's website or tax bill to see what rate applies to your property.

Exemptions that can lower your bill

Many states and counties offer exemptions that reduce the assessed value or the tax rate for certain owners. The most common is the homestead exemption, which lowers the assessed value for owner-occupied primary residences. The amount varies: some states exempt $25,000 of value, others exempt $50,000 or more. A few states exempt a percentage of the value instead of a flat amount.

Other exemptions include senior exemptions (for homeowners over 65), disability exemptions (for disabled owners or veterans), agricultural exemptions (for working farms), and religious or nonprofit exemptions (for churches, charities, and schools). Some states offer exemptions for energy-efficient improvements or historic properties. You typically must apply for these exemptions through your county assessor's office, and you may need to provide proof of your status: a birth certificate for age, a disability information letter, or documentation of nonprofit status.

Exemptions do not happen automatically. If you think you may have access to, contact your county assessor's office to find out what forms to submit and what deadline applies. Missing the deadline can mean waiting until the next year to claim the exemption.

What happens if you do not pay property tax

Property tax bills are due on a date set by your county—usually sometime between September and December, though some counties have multiple payment dates throughout the year. If you miss the deadline, you typically owe a late penalty and interest. The penalty is often 5% to 10% of the unpaid amount, and interest accrues monthly (usually 0.5% to 1% per month, depending on the state).

If you do not pay for several years, the county can place a tax lien on your property. This means the county has a legal claim against your house. You cannot sell or refinance the property without paying off the lien. In some cases, if the debt is large enough and remains unpaid long enough, the county can foreclose on the property and sell it at a tax sale to recover the money owed.

If you have a mortgage, your lender will not allow this to happen. Most mortgages require you to pay property tax through an escrow account—money held by the lender and paid to the county on your behalf as part of your monthly payment. If you own the property outright, you are responsible for paying on time.

The difference between property tax and other housing costs

Property tax is one of several costs of homeownership, and it is easy to confuse it with others. Income tax is a federal tax on your earnings, set by the IRS. Sales tax is charged when you buy goods or services, including when you buy a house (though some states exempt real estate from sales tax). Estate tax is a one-time federal tax on the total value of a person's assets after death, paid by the estate before heirs receive their inheritance.

Mortgage interest is the cost of borrowing money to buy the house; it is separate from property tax and is paid to your lender, not the government. Homeowners insurance protects your building and belongings; it is paid to an insurance company. HOA fees (in condos or planned communities) pay for shared maintenance and are paid to the homeowners association, not the government.

Property tax is the only one that goes to local government for public services. It is also the only one that continues as long as you own the property, regardless of whether you have paid off the mortgage or made any changes to the house.

How to find your property tax bill and rate

Your property tax bill is mailed to you by your county assessor's office or tax collector's office. The bill shows the assessed value, the tax rate, the amount due, and the payment deadline. If you do not receive a bill, or if you want to look up your information before the bill arrives, you can usually find it online through your county's website.

Most counties have a searchable property database or tax assessor portal. Search by your address or parcel number (which is on your deed or previous tax bill). The online record typically shows the assessed value, the tax rate, recent sales history, and sometimes a map of the property. Some counties allow you to pay your bill online through this portal; others require you to mail a check or pay through a third-party service.

If you need help understanding your bill or believe there is an error, contact your county assessor's office directly. They can explain how your value was calculated, tell you about exemptions you may may have access to for, and walk you through the appeal process if you disagree with the assessment.

Frequently Asked Questions

Can I deduct property tax from my federal income tax?

Yes, if you itemize deductions on your federal tax return. You can deduct up to $10,000 per year in state and local taxes combined (including property tax, income tax, and sales tax). This limit has been in place since 2017. If your property tax bill is large, you may benefit from itemizing; if it is small, the standard deduction may be better. Consult a tax professional for your specific situation.

What if I disagree with my assessed value?

File an appeal with your county assessor's office within the deadline shown on your assessment notice (usually 30 to 60 days). Bring evidence: recent appraisals, comparable sales, photos of damage, or repair estimates. Some counties offer informal reviews first; others go straight to a formal hearing. The process is free or low-cost, and you do not need a lawyer, though you can hire one if you choose.

Do I have to pay property tax if I rent out my house?

Yes. Property tax is owed by the owner of the property, not the tenant. If you own a rental house, you owe property tax on it. You may be able to deduct the property tax as a business expense on your income tax return, but you still owe the tax bill to the county.

What is the difference between property tax and a property assessment?

A property assessment is the county's estimate of what your property is worth. Property tax is the bill you owe based on that assessed value. The assessment is the input; the tax is the output. You can challenge the assessment if you think it is wrong, which would lower your tax bill.

Can property tax rates change from year to year?

Yes. Tax rates are set by local government based on budget needs and can increase or decrease annually. Your assessed value can also change year to year (depending on your state's reassessment schedule). Both changes affect your bill. Some states cap how much the rate or value can increase in a single year.