Property Tax Protest · Jefferson County, CO
Protest your property taxes
in Jefferson County, CO.
Home to Golden, Jefferson County homeowners protest through Colorado’s system: the county assessor sets the value, and the County Board of Equalization (CBOE) hears the case. Boards act on evidence of market value as of the assessment date — a licensed, USPAP-compliant appraisal is that evidence. Start with the $5 check to see what you’d save.
- Valued as of January 1 (the county lien date)
- 3+ comparable sales within ~1 mi, sold within 12 months
- Cover letter addressed to the Jefferson County Assessor
- Delivered upload-ready for electronic filing
In the even (intervening) year values generally carry over unless the property changed, so the odd-year protest is the main event. Several large counties use an alternate protest calendar with later dates — one more reason the notice, not a blog post, is your authority.
Jefferson County questions
The annual deadline is June 1. File before then or wait until the next cycle — rush appraisal delivery is available when the window is close.
Colorado revalues every odd-numbered year, and by law the comparable sales must come from a fixed base period ending June 30 of the preceding even year — so a 2027 value rests on sales through June 30, 2026, not on today’s market. Protests go first to the county assessor starting May 1 (online, by mail, or in person in most counties); if the assessor doesn’t move, you appeal to the County Board of Equalization, and beyond that to arbitration, district court, or the state Board of Assessment Appeals. Because the statute fixes the appraisal date, the strongest evidence is a licensed appraisal tied to that exact date, built from sales inside the statutory study period.
Comparable sales as of the assessment date, adjusted for the differences between those homes and yours — the substance of a licensed appraisal. County Board of Equalization (CBOE) panels see hundreds of cases; a signed, USPAP-compliant report is the document they can act on.
We’re not an AVM, a computer model, or a real-estate agent estimate. Every report is prepared under the Uniform Standards of Professional Appraisal Practice (USPAP) and signed by a licensed appraiser in your state — the same qualification required for mortgage appraisals.