Welcome to Colorado Business Express

File with Department of Revenue

Get your sales tax and wage withholding accounts by downloading and completing the
CR 0100 form and mailing it to the Colorado Department of Revenue, or you
can file in person. You can file electronically using Colorado Business Express and
get your license today.

File with Colorado Department of Labor and Employment

To file your business for unemployment insurance (UI) with Colorado Department of Labor and Employment download and complete UITL-100 form and file in person or by mail. Once the UITL-100 form is complete and certain criteria are met, the business is assigned a UI tax account number and an initial UI tax rate.