2026 Property Tax Due Dates
Installment 1
November 10
First half
Installment 2
April 10
Second half
Penalty: $5 minimum + 1% monthly interestGrace period: Until Jan 10 / May 10
Payment Methods
Online, Mail, In-Person
Rio Arriba County Treasurer
Phone
(575) 588-7727Office Hours
Mon-Fri 8am - 5pm
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Rio Arriba County Treasurer
In Person
Visit the Treasurer's office — P.O. Box 548, Tierra Amarilla NM 87575, Mon-Fri 8am - 5pm
Other Counties in New Mexico
About Rio Arriba County
Rio Arriba County (Spanish: Condado de Río Arriba) is a county in the U.S. state of New Mexico. As of the 2020 census, the population was 40,363. Its county seat is Tierra Amarilla.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 336 hours before your property taxes are due.
Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.