e-File Options
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.
- Access Your Income Tax Account (Sign Up/Login) Sign Up Help.
- 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
- Revenue Online for Business Brochure
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.