Visit "Where can I get vaccinated" or call 1-877-COVAXCO (1-877-268-2926) for vaccine information.

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Contact Us By Phone

 

    Call the Taxpayer Helpline

    (303) 238-7378

    Taxpayer Service Representatives are available (except on state holidays)

    Monday through Friday, 8:00 a.m. to 4:30 p.m. MT

     

    Dedicated Phone Support

     

      Tax Unit Contact Phone Numbers

      Hearing or Speech Impaired Relay Services

      To use this service, dial the appropriate number below. Give the Relay Colorado agent the number that you would like to call. The Relay Colorado agent will stay on the line to relay the information/conversation to you.

      • TTY Telephone Users: 1-800-659-2656
      • Voice Telephone Users: 1-800-659-3656

        Relay Colorado Information