News & Information
Business Personal Property
- Business Personal Property Overview
- About Business Personal Property Declarations
- File Online for Business Owners Online filing will open February 1, 2021. (Available to businesses who received a postcard in lieu of a full declaration.) Deadline for filing declarations: April 15.
Assessor’s Office New Hours
The Assessor’s Office is one of several Boulder County departments participating in a pilot program to explore moving to a four-day work-week.
Starting January 4, and running through March 31, 2021, the Assessor’s Office staff will be available Monday through Thursday, 7:30 a.m.–5:00 p.m. online and by phone, to take your questions or schedule appointments. Please call 720-574-1880, or email Assessor@BoulderCounty.org.
Important Alert for Tax Notices and Ownership inquiries
We are currently processing documents that were recorded with the Boulder County Clerk & Recorder from September 2020. Ownership, Death Certificates, Quit Claim Deeds, etc. that have occurred since September 2020 may not be reflected in Property Search results. Thank you for your understanding and patience. This notice will be updated to reflect our progress.
If you receive a tax notice for a property you sold in 2020, please disregard it. Once the ownership records are updated, the new owner will be notified of the taxes due.
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.