Maricopa County Assessor's Office

Maricopa County Assessor's Office

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The Assessor's Office is the fourth largest assessment jurisdiction in North America.

The Maricopa County Assessor's Office, led by Assessor Eddie Cook, locates, identifies ownership and usage and annually notices & administers 1.8 million real & personal property parcels/accounts with a value of more than a trillion dollars. The Maricopa County Assessor's Office is a constitutionally based office within Arizona that is responsible for noticing and valuing up to 1.8 million real an

06/12/2026

🚨 MOBILE HOME OWNERS 🚨

This morning we mailed roughly 73,000 Mobile Home Notices of Value.

Keep an eye out for this notice to see how your FCV and LPV have changed over the past year.

06/08/2026

We recently began our Legal Class Verification process to ensure all property is valued fairly and equitably.

If you received a Notice of Intent to Reclassify to your primary residence, you have until June 15 to respond.

06/02/2026

Happy to provide clarification from a concerned property owner:

Dog houses are considered a part of the primary residence and therefore not a tax burden on the canine.

05/25/2026

We hope everyone is enjoying their Memorial Day weekend.

Our office is closed for the holiday and will reopen at 8 a.m. tomorrow.

Photos from Maricopa County Assessor's Office's post 05/22/2026

Grateful for two incredibly productive days in Philadelphia with the Large Jurisdiction Group.

Great things happen when great minds collaborate!

05/12/2026

Wishing a Happy Birthday to Assessor Eddie Cook!

Thank you for your dedication and service to our community!

05/10/2026

Happy Mother's Day to all the amazing moms out there! Today we celebrate your love, strength, and endless support.

05/01/2026

This month, we recognize and celebrate the history, traditions, and lasting contributions of the AAPI community!

Photos from Maricopa County Assessor's Office's post 04/22/2026

Helping seniors access property tax relief is a priority for our office! Our Valuation Relief Programs team visited the Adam Diaz Senior Center this week to share information on our Personal Exemption & Senior Valuation Protection programs.

Visit our website to see if you qualify!

04/20/2026

Don't forget, dude!

The deadline to appeal your 2027 Notice of Value is tomorrow.

If you believe your property was misvalued or misclassified, we have step-by-step instructions on how to appeal your NOV through our website.

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Click here to claim your Sponsored Listing.

Location

Telephone

Address


301 West Jefferson Street
Phoenix, AZ
85003

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm