Colorado Department Of Revenue Address Denver 80261, As a result, a street address or box number is not required when mailing forms or payments to 80261 via USPS First Class Mail. Apr 5, 2026 ยท Colorado residents, part-year residents, and nonresidents with Colorado-source income file their state tax returns with the Colorado Department of Revenue, either electronically through the free Revenue Online portal or by mail to the Department’s Denver address. Return the DR 0106EP with check or money order payable to the “Colorado Department of Revenue”. Search for other State Government on superpages. Colorado. The public entrance for the Lottery is on Larimer Street. When filing your Colorado individual income tax return, it is important to use the correct mailing address based on whether you are submitting your return with a payment or without one. The public entrance for DMV/Tax is located on 5th Street, between Walnut Street and Larimer Street. Get more information for Colorado Department Of Revenue in Denver, CO. Write your Social Security number or ITIN and “2025 DR 0158” on your check or money order. wlh, mmvc9q8, j09t, 9xb, wplpq1, t2s, fvmf, yn, vd7hjjdik, r2o,