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Revenue Online -- Quick Answers
Filing income tax return
It is not necessary to create a login to file a Colorado income tax return online.
To file a return:
Under Quick Links (located on the bottom left of the page) click on File a Return.
Make sure you select the correct filing year.
A login account is
created when filing an income tax return through Revenue Online. Open this link to learn
How to Register for Revenue Online
When you receive correspondence regarding your taxes from the Colorado Department of Revenue, the letter contains a "Letter ID" in the upper right corner of the document. The ID number starts with the letter "L." You may use the Letter ID as a security key to set up access to your account in Revenue Online. Then you will create a Login ID and Password that you will use each time you access Revenue Online. PINs for Revenue Online are not issued but older Department of Revenue services assigned a PIN for tax account access and you may be able to use the PIN for Revenue Online access if you still know it.
A Letter ID is associated with a particular tax type. You will not be able to use a Letter ID from a letter about your individual income tax to also access another tax account you may have, such as sales tax.
You may access Individual income tax refund and PTC rebate status information in
under "Quick Links," "Where's My Refund /Rebate" without login to Revenue Online. All other tax types (corporation, fiduciary and partnership income tax, sales, withholding, retailer's use taxes) require Sign Up and Login to Revenue Online to access the account. Also see "
Refund Status - Where is My Refund
Send a Secure Message (email)
How to use Secure Messaging in your Revenue Online Account
Sign up to access my tax account
Access an Account in Revenue Online