BoCo Alert System

Boulder County non-emergency offices will be closed on Monday, May 29 for Memorial Day.

Appeals & Abatements

Appeals & Abatements

Real Property Value Appeal

El Proceso de Apelación En Español »

Review Your Full-Page Notice of Value (NOV)

Review the details of your property as it is described on your Notice of Value (NOV):

Your property has been compared to similar homes that sold in the 24 month period from July 1, 2014 to June 30, 2016.

Comparable Property Sales & Time Trending

Provide evidence that your property value is incorrect by including comparable sales.

Comparable Property Sales for 2017/2018 Property Valuation

Time Trending

Appeals for Real Property Values

Appeal Forms

For Property Owner’s using a tax agent:

When & Where to Appeal

About the 2017/2018 Assessment

Understanding How Properties Are Assessed

Business Personal Property

Appeals for Business Personal Property are accepted from June 15–June 30 each year. Outside of these dates:

Property Tax Abatements

An official reduction or invalidation of an assessed valuation after the initial assessment for a tax based on the value of real estate or personal property.

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



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