How to Look Up a Colorado Account Number (CAN)
Not sure what your Colorado Account Number (CAN) is with the Colorado Department of Revenue? You can locate your Colorado Account Number (CAN) in a variety of ways. Select an option below to learn more:
- Look Up a CAN Using Revenue Online
- Letters, Bills, and Other Correspondence from the Department
- Previously Filed Tax Return
- Sales Tax License
- Secure Messaging in Revenue Online
- Call the Taxpayer Helpline
- Email Taxpayer Services (Please allow 2-5 business days for a response.)
If you need information on other tax account tasks, visit the Help with Online Services web page for more information.
Log in to the Revenue Online system, on the home-page the CAN is located near the bottom of the screen under ‘Accounts’.
The Colorado Account Number is listed on all letters that have been sent by the Colorado Department of Revenue. The CAN is listed on the right side of the letter with the word "Account."
Note: If you have questions about why you have received correspondence from the Department, visit the Correspondence FAQ web page for more information.
The CAN is listed in the Colorado Account Number field in the upper portion of the first page on every form. For example, it is located just under the street address field on the Retail Sales Tax Return (DR 0100).
The Colorado Account Number is listed on the Sales Tax License as the first eight (8) digits of the Use Account Number. The CAN is located on the upper left portion of the sales tax license.