2026 Property Tax Due Dates
October 1
First installment (delinquent Nov 1)
March 1
Second installment (delinquent May 1)
Payment Methods
Online, Mail, In-Person
La Paz County Treasurer
Phone
(928) 669-6145How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to La Paz County Treasurer
In Person
Visit the Treasurer's office — 1112 S Joshua Ave, Suite 203, Parker AZ 85344
About Property Taxes in Arizona
Arizona property taxes are administered at the county level, with each county having an assessor who determines property values and a treasurer who collects taxes. Arizona uses a classified property tax system, meaning different types of property are assessed at different percentages of their full cash value (market value). Owner-occupied primary residences (Class 3) are assessed at 10% of full cash value, while commercial property is assessed at 18%. Property taxes in Arizona are paid in two installments and are among the more moderate in the western United States, with an effective rate averaging around 0.6–0.8% of market value. The state also offers several programs specifically designed to help seniors and long-term homeowners manage their tax burden.
Payment & Assessment
Arizona property taxes are paid in two equal installments: First installment: Due October 1, delinquent after November 1 Second installment: Due March 1, delinquent after May 1 Late penalty: A flat 16% per year simple interest rate applies to delinquent taxes, prorated by month. This works out to approximately 1.33% per month. If the total annual tax is $100 or less, it is due in a single payment on October 1. Most Arizona counties offer online payment through the county treasurer's website. Payment by mail and in person at the county treasurer's office is also available. Some counties accept payment by phone. Taxes unpaid for three or more years may be subject to a tax lien sale, where investors purchase the right to collect the delinquent taxes with interest.
Statewide framework for Arizona. Your county's specific rates and deadlines are shown above.
Other Counties in Arizona
About La Paz County
La Paz County is the 15th county in the U.S. state of Arizona, located in the western part of the state. As of the 2020 census, its population was 16,557, making it the second-least populous county in Arizona. The county seat is Parker. The name of the county is the Spanish word for "the peace", and is taken from the early settlement of La Paz along the Colorado River.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.