Assessor's Office Forms

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Address Change Form

Form	Use	Instructions
Address Change	To change the mailing address of the owner for real property owned in Denver.	Complete the form and email, mail, or fax to the Assessment Division.

BoCC Petition for Abatement or Refund of Taxes

Note: Tax years eligible for abatement petitions change annually on January 1. Tax years 2024 and 2025 are currently open.

Form	Use	Instructions
Petition for Abatement or Refund of Taxes(PDF, 136KB)	To appeal property values and to abate (refund) taxes for the immediate two prior years through the Board of County Commissioners (BoCC). Anytime during 2026, a new petition may be submitted for 2024 and/or 2025.	BoCC Petition for Abatement Instructions(PDF, 597KB) Petitions should be filed with: Denver Board of County Commissioners, Attn: Geneva T. Campos 201 W Colfax Ave, Dept 406 Denver, CO 80202 or bocc.protest@denvergov.org

Form

Use

Instructions

Petition for Abatement or Refund of Taxes(PDF, 136KB)

To appeal property values and to abate (refund) taxes for the immediate two prior years through the Board of County Commissioners (BoCC). Anytime during 2026, a new petition may be submitted for 2024 and/or 2025.

BoCC Petition for Abatement Instructions(PDF, 597KB)

Petitions should be filed with:
Denver Board of County Commissioners, Attn: Geneva T. Campos
201 W Colfax Ave, Dept 406
Denver, CO 80202
or
bocc.protest@denvergov.org

Business Personal Property Forms

Form	Use	Instructions
Declaration - Short Form(PDF, 326KB)	Use for all types of taxable personal property including taxable agribusiness equipment and leased property.	Due date: April 15, 2026 See instructions on the form or file online at www.denvergov.org/property.
Declaration - DS 058 Renewable Energy(PDF, 377KB)	The owner of taxable personal property, their agent, and those in possession and/or control of the taxable personal property as of January 1 must file a declaration schedule.	Due date: April 15, 2026 See instructions on the form.
Declaration - DS 658S Oil & Gas Real and Personal(PDF, 662KB)	All owners and/or operators of oil and/or gas wells that have production and sale of oil and gas during the prior calendar year must file this schedule.	Due date: April 15, 2026 See instructions on the form.

Parcel Reconfiguration Form

IMPORTANT: Read - Will my proposed Assessor’s parcels comply with Denver zoning rules?(PDF, 131KB)

Tuesday, October 28, 2025 will be the last day to record an owner’s request for reconfiguration form with the Clerk & Recorder’s Office affecting real property parcels in 2025 (taxes payable in 2026).

Please note: this date is subject to change.

Form	Use	Instructions
Request for a parcel(s) split or combination(PDF, 1MB)	For a property owner(s) who want to subdivide or combine a parcel(s) of land.	See the instructions on the form.

Real Property Forms

Forms	Use	Instructions
2025-NOV-protest-FINAL.pdf(PDF, 117KB)	For property owners who wish to protest the assessed value of their property.	See instructions on form.
Request to Purge a Manufactured Home	To remove a mobile home from the Colorado State Division of Motor Vehicles when the mobile home is converting to affixed real property.	See instructions on form. Also complete a Request to Reclassify Improvements.

Senior Tax Exemption Forms

Please visit the Senior Tax Exemption webpage for information and forms on this tax exemption.

Veteran Tax Exemption Forms

Please visit the Veteran Tax Exemption webpage for information and forms on this tax exemption.