Jefferson 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; Jefferson County says tax bills are sent January 1 or as soon as practicable; the exact 2027 date was not published.
- Payment deadline
- For 2026 taxes payable in 2027: first half due February 28, 2027; full payment due April 30, 2027; second half due June 15, 2027. The county's official payment portal is the Treasurer's property-search system.
- Assessment appeal
- May 1 through June 8, 2026 for real-property valuation protests.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
July 15, 2026 for the standard Colorado Senior Homestead Exemption; Jefferson County also identifies March 15, 2026 for the Qualified Senior Primary Residence Classification.
Senior relief
Jefferson County's senior exemption generally requires age 65+ as of January 1, ownership and primary-residence occupancy for at least 10 consecutive years, and provides 50% of the first $200,000 of actual value exempted. A separate qualified-senior classification may use a March 15 deadline.
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 →