Protest Property Values

Current options for protesting your property value

2021 Tax Year - You may file protests for the 2021 tax year online or via mail. Protests must be submitted or postmarked no later than June 1, 2021.

To file your protest online, please click here. Once connected to the filing application you may select “Guest Login” or you may create an account if desired (for those who interact with our office regularly). 

After login select “Real Property Appeals” from the list of available filings and follow the filing process. 

To file via mail, fill out the Optional Protest Form(PDF, 121KB) and return to:

City and County of Denver
Assessment Division
201 W Colfax Ave., #406
Denver, CO 80202


What is a protest?

A protest is an opportunity to show the appraisal staff in the Assessor’s Office that your property’s assigned value or classification is inaccurate. Your protest should include evidence to support your position. 

Why protest (or appeal)?

Reasons to appeal include:
  • Incorrect property characteristics – property square footage, condition, bath count, use, etc.
  • Estimated value is too high – provide market data to support a reduction in value.
  • Incorrect property classification – the assessor is required to classify property based on the actual use as of January 1 of every year.

What happens after I protest?

After a protest is submitted, it is assigned to a member of the appraisal staff who reviews the information and makes a determination to either adjust the assigned value/classification, or deny the appeal and retain the current assigned value. The Assessor will notify you of the determination.