Rio Blanco County, ColoradoProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- January 2027; the exact Rio Blanco County 2027 tax-statement mailing date was not published in the official source reviewed.
- Payment deadline
- For 2026 property taxes payable in 2027: first half due February 28, 2027; full payment due April 30, 2027; second half due June 15, 2027. Rio Blanco's official payment page states that payments after April 30 should be confirmed with the Treasurer and provides in-person, mail, and phone payment methods.
- Assessment appeal
- May 1 through June 8, 2026; Rio Blanco County's official Assessor calendar explicitly lists the real-property protest start and end dates.
- Rate information
- Approximately 0.325% in Rio Blanco County's official illustrative residential comparison (6.25% assessment rate multiplied by a 52.00 average mill levy); actual effective tax rates vary by tax district and property class.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
July 15, 2026 under Colorado's Senior Homestead Exemption schedule; the county assessor administers applications.
Senior relief
Rio Blanco's official comparison and Colorado's program indicate a senior exemption of 50% of the first $200,000 of actual value of a qualifying primary residence when funded. General eligibility is age 65+ as of January 1, 10 years of ownership, and 10 years of primary-residence occupancy.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →