Arizona Property Tax Assessors

Maricopa County, Arizona Tax Assessors' Office

Maricopa County Assessors Phone Number
Maricopa County Assessor
301 West Jefferson Street
Phoenix, Arizona 85003

Where is the Maricopa County Tax Assessor's Office?

The Maricopa County Tax Assessor Office is located at 301 West Jefferson Street, at the County Administration Building building in Phoenix, Arizona.

What can the Maricopa County Assessor's Office do for me?

The Maricopa County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in Maricopa County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a Maricopa County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the Maricopa County Assessor's Office at (602) 506 3406 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

Useful Maricopa County Facts:

The median home value in Maricopa County is between $237,661.00 and $239,539.00. Property tax rates are based on property values.

How can I contact Maricopa County?

You can try contacting the Maricopa County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for Maricopa County is located in the County Administration Building in Phoenix, which is where the Maricopa County Assessors' Office is also located. You can direct your general inquiries to Maricopa County with the contact info listed below.

Maricopa County Phone Number


Maricopa County Fax Number


Maricopa County County Administration Building Address

County Administration Building
301 W Jefferson St
Phoenix, AZ 85003-2143