Starting Jan. 1, the minimum wage in unincorporated Boulder County is $15.69/hour.

A partir del 1 de enero, el salario mínimo local en la zona no incorporada del condado de Boulder será de $15.69/hora.

BPP Declarations

File your Business Personal Property Declaration

Declaration Schedules Filing Methods

There are several options for filing a declaration schedule.

File Online

File your Personal Property Declaration online using form BPP FORM DS-056.

File by Email

Email your completed declaration schedule to

File a Paper Declaration

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.

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 1/1/2024. Please do not mail them to the State of Colorado.

Deadline to File

Declaration schedules must be filed by April 15.

Contact Us


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


Mailing Address

PO Box 471
Boulder, CO 80306-0471

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


Assessor Boulder and Longmont Drop Boxes


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


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


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