Please remember that you must claim the state sales tax refund (TABOR refund) when filing your state income tax return. If you claimed a 2023 refund, the TABOR refund will be combined and issued out with your refund. Unlike the 2022 Colorado cashback, no separate check will be issued. 


DR 0900 - Individual Income Tax Payment Form


Return the DR 0900 with check or money order payable to the “Colorado Department of Revenue”. Mail payments to:

Colorado Department of Revenue, Denver, Colorado 80261-0008.

These addresses and zip codes are exclusive to the Colorado Department of Revenue, so a street address is not required. Write your Social Security number or ITIN and “2023 DR 0104” on your check or money order. Do not send cash. Enclose, but do not staple or attach, your payment with this form.