Douglas County property tax calculator 2026
This calculator provides an estimated property tax for real estate in Douglas County, Colorado. Estimates are based on assessed value derived from actual (market) value using statewide assessment rates and a combined local mill levy that varies by location.
Estimates only. Loan terms and approval depend on lender underwriting.
Many U.S. counties use multiple local taxing authorities (county, city, school district, special districts). Enter your combined local millage rate as shown on your annual property tax notice.
Estimated property tax
Enter the assessed value to see the estimated annual property tax.
How it works
Property is first valued at its actual (market) value. Colorado applies statewide assessment rates to convert actual value into assessed value. Local taxing authorities then apply mill levies to the assessed value to calculate property tax.
Examples
An estimate starts with actual value, applies the appropriate assessment rate to determine assessed value, and then multiplies that value by a combined local mill levy reflecting the county, school district, municipality, and special districts.
Limitations and important notes
This calculator provides an estimate only. Assessment rates differ by property class and school versus local government components, and mill levies vary by location. Individual relief programs and parcel-specific factors are not fully reflected.
FAQs
Is this the official Douglas County property tax bill?
No. The results generated by this calculator are intended as a general estimate only. The official bill is calculated and issued by the county.
What value is used to calculate property tax?
Taxes are based on assessed value, which is derived from actual (market) value using statewide assessment rates.
Do mill levies vary within Douglas County?
Yes. Total mill levies vary depending on the school district, municipality, and special districts serving a property.
Are exemptions or relief programs included?
General valuation mechanics are shown, but eligibility-based relief programs are not fully modeled in this estimate.
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Calculations are simplified and for guidance only. Always double-check results and current rules with official sources or a qualified professional before making financial decisions.