2027 Property Tax Due Dates
County-specific02-28
First half due by last day of February
06-15
Second half due by June 15
04-30
Full payment due by April 30
Payment Methods
Online (immediate or scheduled), e-check ($1.50), credit card (2.5%)
Douglas County Treasurer
Treasurer
David Gill
Phone
(303) 660-7455Mailing Address
P.O. Box 1208
Castle Rock, CO 80104
Office Hours
How to Pay
Online
true
By Mail
true — P.O. Box 1208, Castle Rock CO 80104
In Person
true — 100 Third Street, Suite 120, Castle Rock CO 80104, Mon-Fri 8am - 5pm (excluding legal holidays)
About Property Taxes in Colorado
Colorado property taxes are administered at the county level. Property is assessed at its actual value (market value) as determined by the county assessor. Colorado conducts countywide reassessments every two years (odd years), meaning values are updated on a two-year cycle. Colorado has recently enacted significant property tax relief legislation to address rapid home value appreciation. The residential assessment rate — the percentage of market value that is taxable — has been reduced and is subject to legislative adjustment. Always confirm the current assessment rate with your county assessor, as it may change year to year.
Payment & Assessment
Colorado property taxes for the prior year are due in the current year. You have two options: Option 1 (single payment): Pay the full amount by April 30. Option 2 (two installments): Pay the first half by February 28, and the second half by June 15. A penalty of 1% per month applies to late payments. Taxes remaining unpaid for several years can result in a tax lien sale. Most Colorado counties offer online payment through the county treasurer's website. Payment by mail and in person is also available.
Statewide framework for Colorado. Your county's specific rates and deadlines are shown above.
Other Counties in Colorado
About Douglas County
Douglas County is a county located in the U.S. state of Colorado. As of the 2020 Census, the population was 357,978. The county is named in honor of U.S. Senator Stephen A. Douglas. The county seat is Castle Rock.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.