What property tax is and who collects it

Property tax is a yearly tax on real estate you own, collected by your county or municipality, not the federal government. The tax is based on the assessed value of your land and buildings — not the price you paid for them, and not what they might sell for today. Your local assessor's office determines that value, usually every one to three years, and sends you a bill.

The money funds local services: schools, roads, fire departments, libraries, and county administration. Because these services vary by location, property tax rates and amounts differ dramatically between towns and states. A house worth $300,000 might cost $3,000 a year in property tax in one county and $8,000 in another.

You receive a bill directly from your county tax assessor or treasurer's office, usually once or twice a year depending on your location. If you have a mortgage, your lender may collect property tax as part of your monthly payment and pay the county on your behalf — this amount appears on your mortgage statement as an escrow item.

Key Takeaways

  • Property tax is a local tax on real estate value, collected by your county or city, and the rate varies widely by location.
  • Your county assessor determines the assessed value of your property, which is the basis for your tax bill — not the purchase price or market value.
  • Property tax bills arrive annually or twice yearly from your local tax assessor or treasurer, and you pay directly or through your mortgage escrow.
  • Homeowners may reduce property tax through homestead exemptions, senior exemptions, or assessment appeals if the assessed value is wrong.
  • Property tax is deductible on your federal income tax return, but only up to $10,000 per year in total state and local taxes combined.

How assessed value is determined and why it matters

The assessed value is not the same as market value. Your assessor estimates what your property would sell for on the open market, then applies a local assessment ratio — often 50 percent or 100 percent of that estimate — to arrive at the assessed value used for tax calculation. A house appraised at $400,000 with a 50 percent assessment ratio would have an assessed value of $200,000.

Assessors use several methods: comparing your property to recent sales of similar homes nearby, calculating replacement cost of the building plus land value, or using income data if the property is rental. Most use a mix of these. The assessed value is multiplied by your local tax rate (called the millage rate, expressed as dollars per $1,000 of assessed value) to produce your bill.

Assessment cycles vary by state and county. Some reassess every year, others every three years or longer. You receive notice of the assessed value, usually by mail, and have a window — typically 30 to 60 days — to challenge it if you believe it is wrong. This is called filing an assessment appeal or grievance.

How the tax rate is set and what affects your bill

Your local government — the county board, city council, or school board — sets the tax rate each year based on the budget they need to fund. They divide the total budget by the total assessed value of all property in the jurisdiction to arrive at a rate. If the budget grows but assessed values stay flat, the rate rises. If assessed values rise but the budget stays the same, the rate may fall.

Your individual bill depends on three things: the assessed value of your property, the tax rate set by your locality, and any exemptions you hold. A homestead exemption — available in most states to primary residents — reduces the assessed value by a fixed amount (often $25,000 to $50,000, but this varies widely) or by a percentage. Senior citizens, veterans, and people with disabilities may may have access to for additional exemptions in many states.

If you own multiple properties or own commercial real estate, you typically pay the standard rate on all of them. Agricultural land often receives a lower rate in rural counties. Nonprofit organizations and government buildings are usually exempt entirely.

Challenging your assessed value if you think it is wrong

If you believe your assessed value is too high, you can file a formal challenge. The process and timeline differ by state and county, but the general steps are the same: obtain a copy of your assessment notice, gather evidence that the value is wrong (recent appraisals, comparable sales, photos of damage or needed repairs), and submit a written appeal to your assessor's office or board of assessment appeals within the important date — usually 30 to 60 days from the notice date.

You may present your evidence in writing, or in some jurisdictions you can request a hearing where you present your case in person. The assessor or appeals board reviews the evidence and either upholds the original value, reduces it, or in rare cases increases it. If you disagree with the result, you may have a second appeal to a county board or court, but this is more expensive and time-consuming.

Common reasons assessments are reduced: the assessor used an outdated comparable sale, missed a major defect in the property, or applied the wrong assessment ratio. Assessments are rarely reduced straightforward because you paid less for the house than the assessed value — the assessment is meant to reflect current market value, not your purchase price.

Federal tax deduction limits for property tax

Property tax is deductible on your federal income tax return, but with a cap. The State and Local Tax (SALT) deduction allows you to deduct up to $10,000 per year in combined state income tax, state sales tax, and property tax. This limit applies whether you are married filing jointly or single. If you own property in multiple states, the $10,000 limit applies to your total across all of them.

To claim the deduction, you must itemize deductions on your federal return rather than take the standard deduction. For many homeowners, the standard deduction is larger, so the property tax deduction provides no benefit. You can deduct property tax only on your primary residence and one other property — vacation homes and investment properties do not may have access to.

This $10,000 cap has been in place since 2017 and is scheduled to expire after 2025 unless Congress extends it. Check the IRS website or consult a tax professional for the current rules in the year you are filing.

How property tax differs from estate tax

Property tax and estate tax are separate and unrelated. Property tax is an annual tax on the value of real estate you own while you are alive, paid every year to your local government. Estate tax is a federal tax on the total value of everything you own — real estate, investments, bank accounts, and personal property — paid once, after you die, if your estate exceeds a threshold ($13.61 million in 2024, though this amount changes yearly and may change after 2025).

Most people never pay estate tax because their estates fall below the threshold. Property tax, by contrast, is paid by nearly all homeowners every year. The two taxes do not interact: paying property tax does not reduce your estate tax liability, and owing estate tax does not change your property tax bill.

Frequently Asked Questions

Can I pay my property tax in installments instead of a lump sum?

Many counties allow you to pay in two installments per year, timed to match when bills are issued. Some allow quarterly payments. Contact your county tax assessor or treasurer to learn the payment schedule and whether late fees explore if you miss a important date. If your mortgage lender collects tax through escrow, you are already paying in monthly installments.

What happens if I do not pay my property tax?

The county can place a lien on your property, meaning they have a legal claim against it. If taxes remain unpaid for several years (the timeline varies by state, typically three to five years), the county may foreclose and sell your home to recover the debt. Interest and penalties accumulate, making the debt larger over time. Contact your assessor's office when ready if you cannot pay to discuss payment plans or hardship options.

Does property tax change when I sell my house?

The new owner becomes responsible for property tax starting on the date of sale, though the exact timing depends on your state's law and the closing date. Your final bill covers only the portion of the year you owned the property. The new owner's assessed value may be adjusted based on the sale price, depending on your state's rules — some states use recent sales to update assessments, while others do not.

Are there property tax breaks for seniors or veterans?

Most states offer reduced property tax or exemptions for seniors (usually age 65 or older), veterans, and people with disabilities. The amount and income limits vary by state and county. Contact your county assessor's office to learn what programs exist in your area and what documents you need to prove you meet the requirements.

How do I find out what my property tax rate is?

Your property tax bill shows the rate applied to your property. You can also contact your county tax assessor or treasurer's office, or visit your county's website — most publish tax rates and assessment information online. If you are comparing rates between counties, ask for the effective tax rate, which accounts for both the stated rate and typical assessment ratios in that area.