Income Tax | Individual -- Account

A Colorado income tax account is created for you when an income tax return is filed with the Colorado Department of Revenue. You can access your tax account information through Revenue Online.  Learn how to Sign Up for Access.
Save time and file online! You may use the Department's free e-file service Revenue Online to file your state income tax. You do not need a Login ID to File a Return. After you file, you have the option of setting up a Login ID and Password to view your income tax account in Revenue Online. Or, you may opt to e-file through a paid tax professional or purchase tax software to complete and file returns. NOTE: If you are a first-time filer, you cannot use Revenue Online. You must either submit a paper return or use a third-party software to file electronically. You may use Revenue Online after you’ve filed your first tax return with the Department.
You can also view the status of a refund, view letters from the Department, make a change of address and more.