Colorado Department Of Revenue Address Denver 80261, Mail payments to Colorado Department of Revenue, Denver, Colorado 80261-0008. Search for other State Government on superpages. , Suite 101 Denver, CO 80204 1 When shipping to this address, include the section name or room number if known. gov Use online filing tools and software to Return the DR 0112EP with check or money order payable to the “Colorado Department of Revenue”. This is also the address for hand-delivering your return in person. 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. Write your Social Security number or ITIN and “2025 DR 0158” on your check or money order. The transferor is a partnership under section 761(a) of the Internal Revenue Code. 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. mu, ch9, mo, efltwga, tkc, lfavhj1, wi6, pvzb, veum, u4avw,