Colorado E-Filer Attachment Form - It appears you don't have a pdf plugin for this browser. This form is used to submit documentation for various credits on your colorado income tax return. Please use the link below to download 2023. Learn how to file your colorado income tax return online using revenue online or other options.
Learn how to file your colorado income tax return online using revenue online or other options. This form is used to submit documentation for various credits on your colorado income tax return. It appears you don't have a pdf plugin for this browser. Please use the link below to download 2023.