Substitute Form Developer


Welcome to the Colorado Department of Revenue’s
Substitute Form Developer home page.  Here you will find the resources dedicated to ensuring your forms meet Colorado tax processing and imaging standards.

Substitute Form Developers are required to receive approval from CDOR before the release or distribution of any substitute forms.  To get started: 

Send any questions to dor_fd_vendor@state.co.us or check out our F.A.Q. section.  Click here to open email link dor_fd_vendor@state.co.us

Click here to access the Frequently Asked Questions page.

Click here for 2022 Letter of Intent Google Form
Click here to access the 2022 Tax Forms page.
Click here to access the 2022 SFD Specifications page.
Click here to access the Frequently Asked Questions page.

Dates  & Timelines