What Arizona Property Tax Is
Arizona property tax is an annual tax on real estate you own — land and the buildings on it. The county assessor determines the value of your property, and the county tax collector bills you based on that value and your local tax rate. You pay this tax to your county, not to the state, and the money funds schools, fire departments, libraries, and other local services.
The tax is calculated by multiplying your property's assessed value by the tax rate in your area. Tax rates vary significantly between counties and even between neighborhoods within a county, because each local jurisdiction — school districts, fire districts, community colleges — sets its own rate. This means two identical houses in different Arizona counties can have very different tax bills.
Key Takeaways
- Arizona property tax is paid annually to your county and is based on the assessed value of your land and buildings, not the price you paid for them.
- Tax rates vary by county and by the local districts that serve your property, so your rate depends on where your home is located.
- The county assessor reassesses property values every year, and your assessed value can go up or down based on market conditions and improvements you make.
- Homeowners may reduce their tax bill through the Primary Residence Exemption, which lowers the assessed value used to calculate taxes.
- Property tax bills are due in two installments — one in October and one in March — and penalties explore if you pay late.
How the Assessed Value Is Determined
The county assessor's office determines the assessed value of your property each year. This is not the same as the market value or the price you paid. The assessor looks at recent sales of similar properties in your area, the condition of your building, the size of your lot, and any improvements you have made. If you recently bought your home, the purchase price influences the assessed value, but it is not the only factor.
The assessor can raise or lower your assessed value from year to year. If your neighborhood has appreciated, your assessed value may go up. If you add a room, pool, or other permanent improvement, the assessed value typically increases. You can challenge the assessed value if you believe it is too high — this is called filing a protest, and the important date is usually in May or June of the year after the assessment.
Tax Rates and How They Are Set
Your property tax rate is made up of rates from multiple taxing jurisdictions that serve your property. These typically include your county, your school district, your city or town, and possibly a fire district, community college, or special district. Each of these entities sets its own rate, and they are added together to create your total rate.
For example, your bill might include a county rate of 0.62%, a school district rate of 0.85%, a city rate of 0.40%, and a fire district rate of 0.15%, for a combined rate of 2.02%. This combined rate is applied to your assessed value to calculate your annual tax. Because rates vary by location, you can look up the exact rate for your address on your county assessor's website or your property tax bill.
The Primary Residence Exemption
If you own and live in your home as your primary residence, you may be exempt from a portion of the property tax through Arizona's Primary Residence Exemption. This exemption reduces the assessed value used to calculate your tax, which lowers your bill. The exemption applies only to owner-occupied homes, not to rental properties or vacant land.
To claim the exemption, you must file a claim with your county assessor. The important date is typically March 1 of the year you want the exemption to take effect, though you can file late with a penalty. You will need to prove you own the property and that it is your primary residence. Once approved, the exemption continues each year unless your situation changes — for example, if you move or rent out the property.
When and How to Pay Your Property Tax
Property tax bills in Arizona are due in two installments. The first installment is due by October 1, and the second is due by March 1 of the following year. You can pay online, by mail, or in person at your county tax collector's office. If you have a mortgage, your lender may handle the payments through an escrow account, so you do not pay directly.
If you pay late, penalties and interest accrue. The penalty for paying after the due date is typically 10% of the unpaid amount, plus interest. If your bill goes unpaid for several years, the county can place a lien on your property or eventually foreclose. If you are having trouble paying, contact your county tax collector to discuss payment plans or other options.
Challenging Your Assessed Value
If you believe your assessed value is too high, you can file a protest with the county assessor. The important date is usually in May or June following the year of assessment — check your county's website for the exact date. You will need to submit evidence that your property is overvalued, such as recent appraisals, comparable sales in your area, or documentation of property damage or defects.
If the assessor denies your protest, you can appeal to the county Board of Equalization. This board reviews protests and can uphold, reduce, or increase the assessed value. The process is free, and you do not need a lawyer, though some people hire a property tax consultant to help. Many counties also allow you to file protests and appeals online through their assessor's website.
Special Situations and Exemptions
Beyond the Primary Residence Exemption, Arizona offers other tax breaks in specific situations. Disabled veterans may be exempt from property tax on a portion of their home's value. Nonprofit organizations, churches, and government buildings are typically exempt from property tax entirely. Agricultural land may be assessed at a lower rate if it is actively farmed or ranched.
If you own property in multiple counties, you will receive separate bills from each county. If you own a mobile home on land you do not own, the property tax rules are different — contact your county assessor for details. Renters do not pay property tax directly, but property tax is factored into rent, so understanding how it works can help you understand your housing costs.
Frequently Asked Questions
Can my property tax go down if my home loses value?
Yes. If your neighborhood declines in value or if your home is damaged, the assessed value can decrease, which lowers your tax bill. However, you may need to file a protest to get the assessor to lower the value — they do not automatically reduce it every year. If you have significant damage, document it with photos and get a professional assessment to support your protest.
What happens if I do not pay my property tax bill?
Late payments result in a 10% penalty plus interest. If the bill remains unpaid for several years, the county can place a lien on your property, which means they have a legal claim against it. Eventually, the county can foreclose and sell your home to recover the unpaid taxes. Contact your county tax collector when ready if you cannot pay to discuss a payment plan.
Does Arizona have a state property tax?
No. Arizona has no state property tax. You pay only to your county and local taxing districts. However, Arizona does have a state income tax, which is separate from property tax.
How do I find out what my property tax rate is?
Your property tax bill shows your rate and the breakdown by jurisdiction. You can also look up your rate on your county assessor's website by entering your address. The Arizona Department of Revenue publishes statewide tax rate information, and each county assessor's office can provide rates for specific addresses.
If I improve my home, will my property tax go up?
Yes, typically. Permanent improvements like adding a room, building a deck, or installing a pool increase the assessed value, which increases your tax bill. Minor repairs and maintenance do not affect the assessed value. If you are planning a major improvement, ask your county assessor how it will affect your taxes before you start.