Contact the Excise Tax Unit

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Email: DOR_ExciseTax@state.co.us
Phone: (303) 205-8287
Web Message:    
Hours of Operation:

Mailing Address:

Colorado Department of Revenue
Excise Tax Unit, Room 237
P.O. Box 17087
Denver, CO 80217-0087
 

Excise Tax Return Mailing Address:

Colorado Department of Revenue
Denver CO 80261-0009