Locations - Service Centers
Taxpayer Service Center Locations
All Service Centers Are Temporarily Closed to the Public to Help Prevent the Spread of COVID-19.
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Tax Drop Box Information
A drop box has been placed outside of the Denver Taxation Division Office. You can submit your returns, e-filer attachments, and payments (check or money order only) in that drop box. If you have any questions about the drop box, please call Taxpayer Services at (303) 238-7378 from 8:00 a.m. to 4:30 p.m., Monday through Friday.
Denver, CO 80261