The Treasurer’s Office collects taxes for real property, mobile homes, and business personal property (business equipment).
On July 1, 2020, the Treasurer will become the Public Trustee
Information about the transition, later this year, of the Boulder County Public Trustee’s office is available.
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 should be made payable to “Boulder County Treasurer.”
To pay taxes by phone, call 1-800-272-9829 and use jurisdiction code: 1601
It’s easy to pay online. Just click the button below!
Do not use our online system to make a late first half payment. The interest charged will be more than you must pay. Call our office for payment options.
Look up / pay property taxesElectronic 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 noticesSeniors, 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