Partnerships must submit a copy of each partner’s Colorado K-1 to the Department. These copies may be submitted in spreadsheet or XML form at Colorado.gov/RevenueOnline. Partnerships may also enter the data manually at Colorado.gov/RevenueOnline. Finally, paper copies may be submitted with the Annual Transmittal of DR 0106K – Colorado K-1 Forms cover sheet (form DR 1706) by mail to:
Colorado Department of Revenue
Denver, CO 80261-0006
Do not submit the copies of the Colorado K-1s issued to partners (or the DR 1706 transmittal form) as an attachment to the partnership’s income tax return.