Colorado Property Tax Appeal Guide
Appeal deadlines, exemptions, assessment rules, and county filing details for Colorado homeowners.
State Overview
In Colorado, property tax appeals are generally handled through the County Board of Equalization. Assessment notices are typically issued May 1, and the appeal deadline is June 1. LowerTheTax reviews comparable sales, assessment records, exemptions, and county filing rules before recommending whether to appeal.
Find Your County
Property tax rules can vary by county. Search for your county to see specific information.
Or select from major counties:
Real Property Information
Assessment Notice Issue Date
May 1
Appeal Deadline
June 1
Tax Bills Issued
January
Payment Due Date
First half: February 28, Second half: June 15
Personal Property Information
Rendition Date
April 15
Assessment Notice
June - July
Appeal Deadline
July 15
Available Exemptions
Special Programs
Senior Homestead Exemption
Review eligibility and timing before filing a Colorado property tax appeal.
Property Tax Deferral (seniors/military)
Review eligibility and timing before filing a Colorado property tax appeal.
TABOR Refunds
Review eligibility and timing before filing a Colorado property tax appeal.