DOR Taxation web site

Corporation/Partnership e-File

File Tax Returns Online (Available through Revenue Online.)

  • File current and previous returns.
  • Amend current and previous returns.
  • Use Direct Deposit to receive refunds quicker.
  • Pay tax through Revenue Online.


Revenue Online

  • Access Your Income Tax Account (Sign Up/Login)  
  • Upload documents related to your tax return
  • Address Changes
  • Add Power of Attorney
  • Balance Inquiry
  • Copy of a Return
  • File a Protest
  • Send a Message to DOR about your account
  • View Letters from the department


IRS Modern eFile

Corporation e-File -- Colorado is now accepting electronically filed corporate income tax on our Form 112. This is part of the IRS Modern eFile(MeF) program. See the list of accepted software for the current tax year.

 

Partnership e-File  -- Colorado is now accepting electronically filed Partnership and S-Corp returns on our Form 106. This is part of the IRS Modern eFile(MeF) program. See the list of accepted software for the current tax year.