2026 Property Tax Due Dates
Installment 1
October 1
First installment (delinquent Nov 1)
Installment 2
March 1
Second installment (delinquent May 1)
Penalty: 16% annual interest prorated monthlyGrace period: Pay full by Dec 31 without interest
Payment Methods
Online, Mail, In-Person
Coconino County Treasurer
Phone
(928) 679-8188Office Hours
Mon-Fri 8am - 5pm
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Coconino County Treasurer
In Person
Visit the Treasurer's office — 110 E Cherry Ave, Flagstaff AZ 86001, Mon-Fri 8am - 5pm
Other Counties in Arizona
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.