Maricopa County Property Tax | Treasurer Bill Search & Payments

Key Property Tax Resources in Maricopa County, Arizona

Property tax bills in Maricopa County are created and collected by the Maricopa County Treasurer's Office, with property values set by the Maricopa County Assessor's Office. This independent guide connects from the broader Arizona Public Records overview and does not provide legal or tax advice.

To use the online tools, it helps to have your parcel or account number ready, although the Treasurer's search also lets you look up records by owner name, business name, mailing or situs (physical) address, or vehicle identification number (VIN). Online information comes from county systems and may lag mailed notices or recent payments, so always check statement dates and posting times before relying on the data.

  • Confirm current-year Maricopa County property tax amounts for a parcel.
  • See whether installments have been paid or are still due.
  • Review assessed values and related information used to calculate the tax bill.

Who Handles Property Tax in Maricopa County

Maricopa County property values are established by the Maricopa County Assessor's Office. The Assessor locates and identifies taxable property, assigns Full Cash Value and Limited Property Value, applies legal classifications, and administers property tax exemptions allowed by law.

The Assessor does not calculate property tax bills or collect payments. Those responsibilities belong to the Maricopa County Treasurer's Office, which prepares and mails annual property tax statements and collects taxes for the county, school districts, cities, special taxing districts, and the state based on assessed values and tax rates set by each taxing authority. For clear definitions of terms such as tax levy, assessed value, and tax rate, you can review the county's property tax bill explanation page.

For questions about how your property was valued, whether exemptions such as senior or disability relief might apply, or how Limited Property Value works, you should contact the Maricopa County Assessor's Office at 602-506-3406 or use its online FAQs and inquiry forms. If your concern is the amount due, interest or penalties, delinquent status, or whether a recent payment has posted, those questions go to the Maricopa County Treasurer's Office at (602) 506-8511. For broader context on statewide practices, you can also review Arizona Property Tax.

  • Maricopa County Assessor's Office: valuation, property details, legal class, and exemption program questions.
  • Maricopa County Treasurer's Office: tax bills, amounts due, payment methods, delinquent accounts, and tax lien processing.

Finding Your Maricopa County Property Tax Bill Online

The Maricopa County Treasurer's online property tax information system lets you look up your parcel without needing to visit the office. The search accepts several identifiers, including parcel or account number, owner or business name, mailing or situs (physical) address, and, in some cases, a vehicle identification number (VIN).

To begin, go to the Treasurer's property tax information page and start your property tax search online. Enter whichever identifier you have and select the matching parcel or account from the results to view its detailed tax information.

Once you have opened your parcel, the Treasurer's site links you to tools such as “Find My Current Tax Statement,” refund and research request forms, public records request options, parcel information, resources for becoming a tax lien bidder, and a map showing delinquent taxes. The online statement complements the paper tax bill mailed each September, giving you another way to confirm amounts billed and see what the county has recorded for your property.

Many property owners use the online information to double-check what their mortgage servicer paid, verify the total calendar-year tax for personal records, or confirm that their mailing address and basic property details match what the county has on file. If anything in the online record looks unexpected, it is best to follow up directly with the Treasurer's Office or, for valuation questions, with the Assessor's Office.

Paying Your Property Tax Bill Securely

Maricopa County property taxes can be paid online through the Maricopa County Treasurer's Office using its official payment processor, Paymentus. The site allows payments by debit card, major credit cards (Visa, MasterCard, Discover, and American Express), and digital payment options such as PayPal, Venmo, Apple Pay, and Google Pay, with a maximum online payment amount of $2,000,000 per transaction.

Card and digital payments include a convenience fee charged by Paymentus and not by the county: currently 2.25% of the amount for credit card and digital wallet payments and 1.80% for debit card payments, with no minimum fee. By law the Maricopa County Treasurer cannot charge processing fees or deduct banking fees from the property tax levy, so these charges go entirely to the payment processor. Electronic check (e-check) payments made through the Treasurer's site or your bank's online bill-pay service do not carry this additional service fee.

Only one debit or credit card can be used per online transaction, and the Treasurer advises allowing one to three business days for online payments to post to the tax database. Cancellations of an online payment are limited to the same day the payment is made. The Treasurer also sets minimum payment amounts excluding any service fees, currently $10 for the current tax year and $6 for back tax years.

Beyond online card and e-check payments, the Treasurer lists additional ways to pay, including mailing a check and paying in person. Mailed payments for individual tax bills go to “Maricopa County Treasurer, PO Box 52133, Phoenix, AZ 85072-2133,” while in-person payments are accepted at the Treasurer's office during regular business hours, Monday through Friday from 8:00 a.m. to 5:00 p.m., except on County holidays. The Treasurer's detailed “Payment Options” information also describes e-check via bank bill pay, bank branch payments, and corporate services for eligible taxpayers.

Maricopa County Property Tax Deadlines and Status

Maricopa County issues property tax statements on a calendar-year basis, printing and mailing them each September with two payment stubs. You may either pay the full year's tax at once or pay in two installments that correspond to the “first half” and “second half” amounts printed on the statement.

According to the Treasurer's property tax FAQ, the installment schedule uses specific annual dates tied to the calendar year of the bill and the following year. The key dates for most bills are:

  • First half is due October 1 and becomes delinquent after 5:00 p.m. on November 1 for tax bills over $100.
  • Second half is due March 1 of the following year and becomes delinquent after 5:00 p.m. on May 1.
  • Full-year bills, and any taxes under $100, become delinquent after 5:00 p.m. on December 31.
  • When a delinquency date falls on a Saturday, Sunday, or legal holiday, the delinquency time moves to 5:00 p.m. on the next business day.

Property owners may pay both halves together any time up to December 31. If a deadline is missed, county law requires the Treasurer to add simple interest at 16% per year, prorated monthly from the first day of the month, until the delinquent amount is paid. Missing deadlines also risks additional costs if the tax eventually moves into tax lien status.

When you look up a parcel in the Treasurer's online system, the displayed information for each calendar year will show whether there is still an amount due or whether the bill has been paid. Because posting can lag by a few days, especially around due dates, use the combination of your mailed statement, online account history, and any records from your lender to understand the current status.

Several property tax relief programs are handled through the Maricopa County Assessor's Office rather than the Treasurer. The Assessor describes exemptions for certain widows, widowers, and disabled residents, as well as a Senior Valuation Protection program designed to freeze the full cash value of a qualifying primary residence based on age and income criteria. These programs generally work by reducing taxable value rather than by changing due dates, so questions about eligibility and how they appear on your assessment notice should be directed to the Assessor.

Late Taxes, Tax Liens, and Next Steps

When Maricopa County property taxes remain unpaid after the delinquency dates, interest begins to accrue by statute. The Treasurer's FAQ explains that delinquent balances accrue simple interest at 16% per year, calculated on a monthly basis, and that failure to receive a tax statement does not remove the requirement to pay or the interest that accrues.

If taxes are not paid in full within 13 months, an additional advertising fee of 5% of the tax or $5, whichever is greater, is added. During the sixteenth month of delinquency, the Maricopa County Treasurer's Office may offer a tax lien on the property for sale. If that tax lien is not redeemed within three years from the sale date, the purchaser of the lien may begin foreclosure proceedings on the property.

Parcels with prior-year delinquent taxes still unpaid at the end of December can become candidates for the Back Tax Lien Sale held the following February. The Treasurer's online tools also include a map and reports related to delinquent taxes, which can help property owners or interested bidders see where unpaid taxes have progressed to lien status.

Delinquent situations can be complex because they mix payment issues with questions about value or legal classification. If you believe your assessed value is incorrect or an exemption has not been applied, those concerns should first be taken to the Maricopa County Assessor's Office, which provides a property tax FAQ, educational materials, and an online inquiry form and virtual appointments. For questions about payoff amounts, redemption of tax liens, or how and when to pay a delinquent balance, you will need to speak directly with the Maricopa County Treasurer's Office.

Because interest, fees, and lien timelines are driven by state law and county procedures, it is important to contact the appropriate office as soon as you see a delinquent amount so you can understand the options that may apply in your situation.

Property Tax Contacts and Offices in Maricopa County

Two main county offices handle property tax matters in Maricopa County: the Maricopa County Treasurer's Office for billing and payment, and the Maricopa County Assessor's Office for valuation, classifications, and exemption questions. The table below summarizes their primary in-person locations and public telephone numbers.

Facility Name Physical Address Phone Number
Maricopa County Treasurer's Office 301 W. Jefferson St. Suite 100 Phoenix, AZ 85003 (View on Google Maps) (602) 506-8511
Maricopa County Assessor's Office 301 W Jefferson Street Phoenix, AZ 85003 (View on Google Maps) 602-506-3406

The Treasurer's customer service line at (602) 506-8511 can help with questions about current-year or delinquent balances, how to make a payment, and how online payments were posted. In-person visits to the Treasurer are generally handled during office hours of 8:00 a.m. to 5:00 p.m., Monday through Friday, excluding County holidays. The Assessor's Office at 602-506-3406 focuses on questions about valuation, legal class, exemptions, and programs such as the Senior Valuation Protection program.

For vehicle- or business-related property tax questions that appear on your parcel or account, start by checking how the item is listed in the Treasurer's online system and then call the office above that corresponds to whether your concern is about value (Assessor) or the bill and payment (Treasurer). Before calling or visiting, have your parcel or account number and recent tax statement handy to make it easier for staff to locate your record.

Because procedures and contact details can change, always confirm current information directly with the appropriate Maricopa County office before acting on property tax or assessment questions.

When are Maricopa County property taxes due?
Annual property tax statements are mailed in September. The first half of the tax is due October 1 and becomes delinquent after 5:00 p.m. on November 1 for bills over $100. The second half is due March 1 of the following year and becomes delinquent after 5:00 p.m. on May 1. Full-year bills and any taxes under $100 become delinquent after 5:00 p.m. on December 31.

What happens if I do not pay my Maricopa County property tax bill?
Unpaid taxes accrue simple interest at 16% per year, calculated monthly. If the bill is not paid in full within 13 months, an advertising fee of 5% or $5, whichever is greater, is added and the Treasurer may offer a tax lien on the property for sale in the sixteenth month. If that tax lien is not redeemed within three years from the sale date, the purchaser may initiate foreclosure proceedings.