Excise & Fuel Tax Payment

Additional Balance Due After Filing Return

After filing your tax return, if you receive a bill for an additional balance due, you should remit payment electronically, or mail a check/money order along with a payment voucher enclosed with the Statement of Account. For questions, contact the Excise Tax Unit or the Fuel Tax Unit.

Payment Options

Payments must be submitted electronically pursuant to section 39-21-119.5, C.R.S. The qualifying electronic payment methods are Revenue Online Direct Debit, E-Check, ACH Debit, Credit/Debit Card, and Cryptocurrency. If a payment is made using a method other than one of these electronic payment methods, such as paper check or cash, a penalty of $50 or 5% of the tax, whichever is greater, will be applied.

Payment Methods

Check or Money Order

If you wish to pay by check or money order, be sure to:
  • Make the check or money order payable to the Colorado Department of Revenue.
  • Write the Colorado Account Number (CAN) for the IFTA account on the check. Include the filing period dates and the type of excise tax paid in the memo portion of the check.

Cash

Cash payments can only be made at the Denver Regional Service Center Location at 1351 5th St., Suite 100, Denver, CO. 80204. Visit the Cash Payments web page for more information.

Electronic Payment

You can make a payment through Revenue Online by logging into your ROL account or using other options on the Make a Payment webpage.