Amended fire restrictions: Stage 1 fire restrictions in western Boulder County. Fire restrictions rescinded in eastern Boulder County.

Boulder County government offices closed Monday, Oct. 14, in observance of Indigenous Peoples’ Day. The District Attorney’s Office is open Oct. 14.

Senior Tax Exemption

Senior Homestead Property Tax Exemption

The Colorado Constitution establishes a property tax exemption for qualifying senior citizens, surviving spouses of senior citizens who previously qualified, and for Disabled Veterans.

If you wish to apply for the exemption, and qualified as of January 1, 2024, and wish to receive a form to fill out, you may call our office at 303-441-3530, or email .

Deadline

We are no longer accepting applications for tax year 2024. If you would like to be put on our 2025 mailing list, please email AssessorSX@bouldercounty.gov. Be sure to include your property address in your request.

Effect on Taxes

  • The exemption goes into effect for tax year 2024.
  • The discount will first appear on the tax bill sent in January 2025.
  • The exemption remains in effect until a disqualifying event occurs, such as:
    • Sale of property
    • Property is moved into a trust, LLC or other legal entity, or
    • Surviving Spouse, or
    • Home destroyed by a natural disaster

Eligibility

To qualify to apply for the 2024 tax year (payable in 2025), seniors:

  • Were born on or before January 1, 1959, and
  • Lived in the home continuously starting before January 1, 2014, and
  • Owned the home continuously starting before January 1, 2014.

Exemption Amount

For those who qualify, 50 percent of the first $200,000 in actual value of their primary residence is exempted, for a maximum exemption amount of $100,000 in actual value. The State of Colorado pays the property taxes on the exempted value.
If you have any questions, please email .

Contact Us

Assessor

Phone: 303-441-3530
Fax: 303-441-4996

Email

Mailing Address

PO Box 471
Boulder, CO 80306-0471

Hours: 7:30 a.m. to 5 p.m.
Monday-Thursday
Closed Friday

Locations

Assessor Boulder and Longmont Drop Boxes

Boulder

1325 Pearl St., 2nd floor
Boulder, CO 80302
Hours: 7:30 a.m. to 5 p.m.
Monday-Thursday
Map and Directions Boulder Location

Longmont

515 Coffman St., Suite 114
Hours: 7:30 a.m. to 5 p.m.
Monday only
Map and Directions Longmont Location

Lafayette

1755 S Public Road
Hours: 7:30 a.m. to 5 p.m.
Tuesday only
Map and Directions Lafayette Location