DOR Taxation web site

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

  • Tired of using a form to file for just one location? Try Revenue Online to file instead! It will save you time and find deductions you may have missed!
  • Revenue Online has all the rates for each state-collected jurisdiction for your location.
  • Have a few locations? Each location is filed separately in Revenue Online.
  • 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? These forms won't have the tax rates but if you want to use a paper form, click a link below.