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How to use Secure Messaging in Your Revenue Online Account
Income Tax | Fiduciary -- Refund
Revenue Online “Where’s My Refund?”
Other Contact Phone Numbers
Hearing or Speech Impaired: Relay Colorado To use this service, dial the appropriate number above. 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.
See list of Taxation Service Centers.