DOR Taxation web site

Say goodbye to the paper hassle. Revenue Online makes filing your return a simple and easy process. 

 

  • Sign up for account access, file your withholding tax return and your annual reconciliation documents or files, and monitor your account all in one place. Revenue Online.
  • Tired of using just one form to file for every period? Try Revenue Online to file instead! It will save you time.
  • Make payments by e-check, credit card or EFT through Revenue Online.
     

Create your own Login ID and Password. Then use them to get to your account and File Now. www.Colorado.gov/RevenueOnline


RevenueOnline 
 

Still want to download a form? Click a link below.