Property Tax in Colorado: Complete Guide 2026
Data Notice: Figures, rates, and statistics cited in this article are based on the most recent available data at time of writing and may reflect projections or prior-year figures. Always verify current numbers with official sources before making financial, medical, or educational decisions.
Property Tax in Colorado: Complete Guide 2026
Tax information is for educational purposes only and does not constitute tax advice. Consult a licensed tax professional for your specific situation.
Colorado has one of the lowest effective property tax rates in the nation, averaging approximately ~0.51%. This low rate is largely driven by the Gallagher Amendment’s legacy and the recently adopted assessment rate reductions that keep the residential assessment rate well below most other states. For 2026, the residential assessment rate is approximately ~6.70% of actual value, meaning only a fraction of your home’s market value is subject to the mill levy. Commercial property is assessed at ~29.00%. This guide covers how Colorado’s assessment system works, key exemptions, and strategies for managing property taxes.
Colorado Property Tax Rates (2026)
Average Effective Rates by County
| County | Avg. Effective Rate | Median Home Value | Median Annual Tax |
|---|---|---|---|
| Denver | ~0.54% | ~$550,000 | ~$2,970 |
| El Paso (Colorado Springs) | ~0.44% | ~$420,000 | ~$1,848 |
| Arapahoe | ~0.48% | ~$480,000 | ~$2,304 |
| Jefferson | ~0.50% | ~$510,000 | ~$2,550 |
| Boulder | ~0.56% | ~$700,000 | ~$3,920 |
| Adams | ~0.52% | ~$420,000 | ~$2,184 |
| Douglas | ~0.46% | ~$600,000 | ~$2,760 |
| Larimer (Fort Collins) | ~0.52% | ~$500,000 | ~$2,600 |
Statewide Averages
| Metric | Value |
|---|---|
| Average effective rate | ~0.51% |
| Median home value | ~$475,000 |
| Median annual property tax | ~$2,423 |
How Colorado Property Taxes Work
Assessment Rates
Colorado’s unique feature is its split assessment rate system, which taxes residential property at a much lower percentage of actual value than commercial property:
| Property Type | Assessment Rate |
|---|---|
| Residential | ~6.70% |
| Commercial | ~29.00% |
| Agricultural | Varies (productive value) |
| Oil and gas | ~87.50% |
| Vacant land | ~29.00% |
The assessment rate has fluctuated significantly in recent years due to legislative changes following the repeal of the Gallagher Amendment in 2020 and subsequent laws adjusting the rate.
Actual Value
Colorado county assessors determine the actual (market) value of property based on comparable sales data. Residential properties are reassessed every two years using an ~18-month data collection period ending June 30 of the year before the assessment year.
Mill Levy
The mill levy is set by each taxing authority (county, city, school district, special district). One mill equals ~$1 of tax per ~$1,000 of assessed value. Typical total mill levies range from ~50 to ~120 mills depending on location and the number of overlapping districts.
Tax Calculation Example
For a ~$500,000 home in Denver with a total mill levy of ~80 mills:
| Component | Calculation |
|---|---|
| Actual value | ~$500,000 |
| Assessment rate | ~6.70% |
| Assessed value | ~$33,500 |
| Mill levy | ~80 mills |
| Annual property tax | ~$33,500 x ~0.080 = ~$2,680 |
TABOR and Revenue Limits
Colorado’s Taxpayer’s Bill of Rights (TABOR), adopted in 1992, requires voter approval for any tax increase. This applies to property taxes through:
- Revenue limits: Local governments cannot increase total property tax revenue by more than inflation plus new construction without voter approval.
- Mill levy adjustments: When property values rise rapidly, governments must reduce mill levies to stay within TABOR limits (called “revenue neutral” rate reductions).
- De-Brucing: Some jurisdictions have voted to waive TABOR revenue limits, allowing them to keep excess revenue.
Colorado Property Tax Exemptions
-
Senior Homestead Exemption: Homeowners age 65+ who have lived in their home for at least ~10 years may exempt ~50% of the first
$200,000 of actual value ($100,000 exempt), saving approximately ~$500 to ~$1,000 annually. -
Disabled Veteran Exemption: Veterans with a ~100% permanent disability rating may exempt ~50% of the first ~$200,000 of actual value. The ~10-year residency requirement is waived.
-
Agricultural Classification: Land used for agricultural purposes is assessed based on productive value rather than market value, often dramatically lower.
-
Renewable Energy Exemption: Residential renewable energy systems (solar, wind) are exempt from property tax assessment.
-
Property Tax Deferral: Qualifying seniors, active military, and disabled individuals can defer property taxes until the home is sold.
How to Appeal Your Assessment
Colorado provides a structured appeal process:
- County Assessor: File a protest by June 1 of the reassessment year. Present comparable sales data that supports a lower value.
- County Board of Equalization: If the assessor denies your protest, appeal to the county CBOE by July deadline.
- Board of Assessment Appeals (BAA): Further appeals go to the state BAA within ~30 days of the CBOE decision.
- District Court: Final appeals can be filed in district court.
Comparison to National Average
| State | Avg. Effective Property Tax Rate | Median Annual Tax |
|---|---|---|
| Colorado | ~0.51% | ~$2,423 |
| Utah | ~0.57% | ~$2,282 |
| Arizona | ~0.62% | ~$2,201 |
| New Mexico | ~0.72% | ~$1,558 |
| Wyoming | ~0.55% | ~$1,551 |
| National average | ~1.07% | ~$2,795 |
Colorado’s effective rate is less than half the national average, making it one of the most affordable states for property taxes.
Tips for Reducing Colorado Property Tax
-
Apply for the Senior Homestead Exemption. If you are 65+ and have lived in your home for ~10+ years, this exemption can save ~$500 to ~$1,000 annually.
-
Appeal your assessment. File a protest by June 1 in reassessment years if comparable sales support a lower value.
-
Claim the disabled veteran exemption. Veterans with ~100% permanent disability are eligible regardless of how long they have owned the home.
-
Install renewable energy systems. Solar panels and wind systems are exempt from property tax, reducing the net cost of installation.
-
Understand TABOR protections. Mill levies must be adjusted downward when values rise rapidly unless voters have approved de-Brucing.
-
Consider property tax deferral. Qualifying seniors and disabled homeowners can defer all property taxes interest-free until the home is sold.
-
Verify your property records. Check that the assessor’s records accurately reflect your home’s condition, square footage, and features.
Key Takeaways
- Colorado’s average effective property tax rate of ~0.51% is among the lowest in the nation.
- Residential property is assessed at just ~6.70% of actual value, while commercial property is assessed at ~29.00%.
- The Senior Homestead Exemption exempts ~50% of the first ~$200,000 of actual value for qualifying homeowners age 65+.
- TABOR requires voter approval for tax increases and forces mill levy reductions when values rise rapidly.
- Property is reassessed every two years using comparable sales data.
- Renewable energy systems are exempt from property tax.
Next Steps
- Federal Income Tax Guide 2026 — Property tax deductions on your federal return.
- State Income Tax Rates Comparison 2026 — Colorado’s overall tax environment.
- Tax Bracket Calculator — Estimate your combined tax burden.
- Self-Employment Tax Guide — Home office property tax deductions.
- Find a CPA Near You — Get professional help with Colorado property taxes.