2027 Property Tax Due Dates
County-specific02-28
First half due by last day of February
Delinquent after: 07-01
06-16
Second half due by June 16
Delinquent after: 11-01
04-30
Full payment (or if bill < $25) due by April 30
Payment Methods
Online (e-check free, CC 2.40%, debit $3.95 Visa/MC), phone 833-735-2288, In-Person, drop box, Mail
Arapahoe County Treasurer
Treasurer
Michael R. Westerberg
Phone
(303) 795-4550Fax
(303) 347-2597
Mailing Address
P.O. Box 571
Littleton, CO 80160
Office Hours
How to Pay
Online
true
By Mail
true — P.O. Box 571, Littleton CO 80160
In Person
true — 5334 S Prince St, Littleton CO 80120, Mon-Fri 8am - 4pm
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 Arapahoe County
Arapahoe County is a county located in the U.S. state of Colorado. As of the 2020 census, its population was 655,070, making it the third-most populous county in Colorado. The county seat is Littleton, and the most populous city is Aurora. The county was named for the Arapaho Native American tribe, who once lived in the region. Arapahoe County is part of the Denver-Aurora-Lakewood metropolitan statistical area. Arapahoe County calls itself "Colorado's First County", since its origins antedate the Pike's Peak Gold Rush.
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.