Colorado (CO) · Property Tax Appeal
How to Appeal Your Property Tax Assessment in Colorado
File a written protest with the County Assessor by June 1 (odd years) or June 15 (even years), or appeal directly to the Board of Assessment Appeals.
Filing Deadline
June 1 (odd years) / June 15 (even years)
Appeals Body
Board of Assessment Appeals
Generate Your Colorado Appeal Letter
Answer 3 questions, pick comparable properties, download your county-ready letter. Only pay when you're happy with the result.
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Property Tax Appeal by County in Colorado
Denver County
Denver County Board of Equalization
Deadline: June 1 (odd) / June 15 (even)
Jefferson County
Jefferson County Board of Assessment Appeals
Deadline: June 1 (odd) / June 15 (even)
Arapahoe County
Arapahoe Board of Assessment Appeals
Deadline: June 1 (odd) / June 15 (even)
Boulder County
Boulder Board of Assessment Appeals
Deadline: June 1 (odd) / June 15 (even)
How to Appeal Your Property Taxes in Colorado
1. Gather evidence
Your current assessed value vs. recent sales of comparable properties in your neighborhood.
2. File your protest
Submit to the Board of Assessment Appeals by June 1 (odd years) / June 15 (even years). Late filings are typically rejected.
3. Attend your hearing
Present your comps and letter. Most hearings are brief. Many are resolved before the hearing date.
Deadlines and procedures change. Always verify with your county assessor or Board of Assessment Appeals before filing. This is not legal advice.