Commissioners: “We will continue to value, respect, and support all individuals as we serve the people of Boulder County.” Read full message.

BPP Declarations

File your Business Personal Property Declaration

Declaration Schedules Filing Methods

There are several options for filing a declaration schedule. The 2025 deadline to timely file a Business Personal Property Declaration is April 15.

File Online

Available February 2025

To file your Personal Property Declaration online please use the link below:
File your Personal Property Declaration online using form BPP FORM DS-056.

Online Declarations Frequently Asked Questions

Downloadable Forms

Download declaration forms for all personal property types from the Colorado Department of Property Taxation’s website. These forms must be returned to the Boulder County Assessors Office, or the County within which the assets are located as of 1/1/2025. Please do not mail them to the State of Colorado.

File by Email

Email your completed declaration schedule to BPPAssets@BoulderCounty.gov

File by Mail

Mail your completed declaration to:

Boulder County Assessor
PO Box 471
Boulder, Colorado 80306

The declaration schedule must be postmarked by April 15 to be considered timely filed.

File by Fax

Fax your completed declaration to 303-441-4996.

The declaration schedule must be faxed by April 15 to be considered timely filed.

Deadline to File

Declaration schedules must be filed by April 15.

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