Utility Menu Visit "Where can I get vaccinated" or call 1-877-COVAXCO (1-877-268-2926) for vaccine information. Menu Home Important Dates Important Dates Important Dates General Property Reappraisals Occur Every Two Years Next reappraisal - 2021 Notices of Valuations For: Real Property are mailed out – On or before May 1 Protest Period to Assessor - May 1 through June 1 Notices of Valuations For: Personal Property are mailed out - June 15 Protest Period to Assessor - June 15 through June 30 Application for: Senior Citizen Exemption - on or before July 15 (If you have applied previously and nothing about your property has changed, you do not need to reapply) Other Dates: Personal Property, Earth & Stone Products, and Oil & Gas Declarations – By April 15 Notices of Determinations Are Mailed Out - June 30 Protest Period to County Board of Equalization - June 30 through July 15 Contact Us: PHONE EMAIL ONLINE FACEBOOK © 2021 State of Colorado Transparency Online Accessibility Privacy Statement Security Statement Colorado Official State Web Portal