Estimate your Colorado property tax based on the state's 0.49% average effective rate. Enter your home value for an instant, free calculation.
Enter any tax exemption amount you qualify for in Colorado
Colorado has one of the lowest effective property tax rates in the country. Homes are taxed on only a small fraction of their market value — a residential assessment rate of 6.8% for 2026 — and all property tax revenue stays local.
Colorado taxes assessed value, a fraction of market value set by the state residential assessment rate (6.8% for 2026, after a 10% reduction on the first $700,000 of actual value). Property is revalued in two-year cycles from comparable sales, and rates are levied in mills by counties, cities, school districts, and special districts. None of the revenue goes to the state.
| Home Value | Estimated Annual Tax | Monthly (Escrow) |
|---|---|---|
| $250,000 | $1,225 | $102/mo |
| $461,000 (median) | $2,259 | $188/mo |
| $600,000 | $2,940 | $245/mo |
Effective rates vary within Colorado. These figures are median-tax-to-median-value estimates from U.S. Census ACS data (2019–2023 ACS 5-year (SmartAsset)) for some of the most populous counties:
| County | Effective Rate |
|---|---|
| Denver County | 0.48% |
| El Paso County | 0.43% |
| Arapahoe County | 0.52% |
| Jefferson County | 0.51% |
| Adams County | 0.60% |
| Douglas County | 0.61% |
| Larimer County | 0.52% |
| Boulder County | 0.55% |
Among these counties, effective rates range from about 0.43% in El Paso County to 0.61% in Douglas County. Your actual rate depends on the local mill/millage set by your county, city, and school district.
Colorado has no broad homestead exemption for all owners; the statewide residential assessment rate serves as the main relief. Targeted relief comes through the Senior/Veteran Homestead Exemption, which exempts 50% of the first $200,000 of a qualifying home's actual value — a reduction of up to $100,000 in actual value.
Seniors 65+ who have owned and occupied their home for at least 10 consecutive years qualify for the Senior Homestead Exemption (50% of the first $200,000 of actual value), and the identical benefit extends to veterans with a 100% permanent service-connected disability and Gold Star surviving spouses. It's applied for through the county assessor and generally renews automatically once granted.
Tax bills are mailed in January. Owners may pay in full by April 30, or in two equal installments — the first half by the last day of February and the second half by June 15 — with interest and eventually a fall tax lien sale on unpaid amounts.
Notices of valuation are mailed by May 1. Owners may protest to the county assessor in the spring (statutory real-property deadline in early June), then to the County Board of Equalization and on to the Board of Assessment Appeals, an arbitrator, or district court.
Colorado has one of the lowest effective property tax rates in the country, roughly 0.49% of home value on average, versus a national average near 0.9%. Your actual rate depends on the mill levies of your county, city, school district, and special districts.
Your home's actual value is multiplied by the residential assessment rate (6.8% for 2026) to get assessed value, then by your combined local mill levy. A mill equals $1 of tax per $1,000 of assessed value.
Yes. Owners 65+ who have owned and lived in the home at least 10 years can exempt 50% of the first $200,000 of actual value. The same benefit is available to 100% permanently disabled veterans and Gold Star spouses.