Treasurer
Courthouse art deco relief showing miner and farmer
If you want to prepay your 2018 property taxes, payable in 2019, please read our instructions.
Online payments are no longer being accepted. Payment can be made by mail or in our office with certified funds– cash (office only), cashier’s check, or money order. You can still view your tax account information online.
Our Lafayette office is closed until January 29. Please come to our other offices for service or contact us by phone.

Treasurer

The Treasurer’s Office collects taxes for real property, mobile homes, and business personal property (business equipment).

Prepayment

If you are interested in prepaying your property taxes, instructions are available.

Paying Taxes

Property taxes may be paid in full, or in two half payments, by the due dates. Currently, online payments are no longer being accepted. Payment can be made by mail or in our office with certified funds– cash, cashier’s check, or money order. If you choose to mail us a payment, do not include cash. Checks should be made payable to “Boulder County Treasurer.”

LOOK UP / PAY PROPERTY TAXES

Electronic Property Tax Notices

We now offer the option to receive tax notices by e-mail. Please read the instructions, then click the button below to get started!

SIGN UP FOR ELECTRONIC TAX NOTICES

Seniors, Veterans, and Active-Duty Military

The Treasurer’s Office processes applications for:

Senior Property Tax Deferral
Active Military Property Tax Deferral

Tax exemption program applications are processed by the Assessor:

Senior Tax Exemption
Disabled Veterans Tax Exemption

Tax Liens

Once a year, real properties with unpaid taxes are subject to having a tax lien placed on the property.

Tax Lien Sale Information

Contact Us

Treasurer's Office

Phone: 303-441-3520
Fax: 303-441-3598

Email Us

Mailing Address

PO Box 471
Boulder, CO 80306

Connect With Us

Boulder

1325 Pearl St.
1st Floor
Map & Directions
Hours: 8 a.m. - 4:30 p.m.
Monday - Friday

Longmont

515 Coffman St.
Suite 113
Map & Directions
Hours: 8 a.m. - 4:30 p.m.
Mondays Only

Lafayette

1376 Miners Dr.
Unit 105
Map & Directions
Closed until January 29