News & Information
Assessor’s Office Status
All Assessor’s Office locations (the main location in Boulder as well as remote offices in Longmont and Lafayette) are closed to walk-in traffic until further notice.
Staff are available online and by phone during regular business hours to take your questions or schedule appointments. Please call 303-441-3530, or email Assessor@BoulderCounty.org.
The Colorado Constitution establishes a property tax exemption for qualifying older adults, surviving spouses of those who previously qualified, and for disabled veterans. Applications must be filed no later than July 15 for the exemption to apply to your tax bill next year.
Online filing will open Feb. 1, and is available to businesses who received a postcard in lieu of a full declaration. Deadline for filing declarations is April 15.