BPP Declarations

File your Business Personal Property Declaration

Declaration Schedules

Online Declarations

  • File Online for Business Owners
    (Available to businesses who received a postcard in lieu of a full declaration.)
    Deadline for filing declarations is April 17.

Downloadable Forms

About Business Personal Property

The Personal Property Section of the Assessor’s Office establishes values for business personal property (the assets owned by businesses) for ad valorem property tax purposes.

By April 15 of every year, businesses in Boulder with a total actual value of their personal property assets greater than $7,400 are required to send the Boulder County Personal Property Section a declaration listing all the assets they owned as of January 1, along with information regarding the original date and cost of acquisition for those assets. Even if assets were disposed of after January 1, they must be declared because current Colorado law does not provide for prorated assessments. The Assessors Personal Property staff takes the information provided by the taxpayer and calculates a value for each business; a Notice of Valuation is mailed by June 15.

If you have also filed a paper declaration, please note that on your online form.

The Assessor is located at 1325 Pearl St. Courthouse, Boulder on the Pearl Street Mall. The mailing address is: PO Box 471, Boulder, Colorado 80306.

New business owners may be unaware of the basic rules and procedures regarding the personal property assessment process, so please review the information in the first paragraph at the top of this page, and feel free to call the Personal Property Division at 303-441-3316 with any questions. Leasing Companies can also call this number.

Contact Us


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

Business Personal Property
Phone: 303-441-3316
Fax: 303-441-1783

Mailing Address
Main: PO Box 471
Boulder, CO 80306-0471



1325 Pearl St., 2nd floor
Boulder, CO 80302
Map & Directions
Temporary Location
starting August 27, 2018

1333 Iris Avenue
Map & Directions
Hours: 8 a.m.-4:30 p.m. M-F


515 Coffman Street, Suite 114
Map & Directions
Hours: 8 a.m.-4:30 p.m.
Mondays ONLY


1376 Miners Dr., Unit 105
Map & Directions
Hours: 8 a.m.-4:30 p.m.
Tuesdays ONLY