Boulder County has enacted Level 1 Fire Restrictions

Treasurer
Courthouse art deco relief showing miner and farmer
We have a list of resources available for those affected by the Marshall and Middle Fork fires. The County has also partnered with other local governments to provide information on rebuilding resilient, high-performance homes.

Treasurer

The Treasurer’s Office collects taxes for real property, mobile homes, and business personal property (business equipment). The Treasurer is also the Public Trustee– handling the release of deeds of trust and managing foreclosures.

2021 Taxes Payable in 2022

Tax notices are mailed near the end of January, to the owner of the property. .

If you prepaid your property taxes, we have answers to some frequently asked questions.

Paying Taxes

Property taxes may be paid in full, or in two half payments, by the due dates. You can pay these taxes in our office, by mail, online, or over the phone. Instructions for each of these payment methods can be found on the back of your property tax notice. If you choose to mail us a payment, do not include cash. Checks and money orders should be made payable to “Boulder County Treasurer.”

It’s easy to pay online. Just click the button below!

Look up / pay property taxes

Electronic Property Tax Notices

We now offer the option to receive tax notices by email. 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

Treasurer Email

Foreclosures

Mailing Address

PO Box 471
Boulder, CO 80306

Boulder

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

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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
Hours: 8 a.m. - 4:30 p.m.
Tuesdays Only