2026 Property Tax Due Dates
February 28
First half (or full by April 30)
June 15
Second half
Payment Methods
Online, Mail, In-Person
Boulder County Treasurer
Treasurer
Paul Weissmann
Phone
(303) 441-3520Mailing Address
P.O. Box 471, Boulder, CO 80306
Office Hours
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Boulder County Treasurer — P.O. Box 471, Boulder, CO 80306
In Person
Visit the Treasurer's office — 1325 Pearl St., Boulder CO 80302, Mon-Fri 8am - 4:30pm
Other Counties in Colorado
About Boulder County
Boulder County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 330,758. The most populous municipality in the county and the county seat is Boulder.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 14 days 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.