Substitute Form Developer Specifications

Submission Guidelines:
To avoid returns or rejections, ensure all submissions meet the following criteria: 

• Check the current year forms pages and determine:

  • Is the form status marked as "Final"?

  • Does the revision date on the CDOR form match the revision date on the SFD form?

• Prepare the output PDF version of the form:

  • Contains all pages of the form.

  • Pages are in numerical order (page 1, 2, 3...)

  • All pages have variable dummy data.

  • Contains two (2) samples. (Scanline forms may require three (3) samples).

  • Variable data matches the expected formatting.

(Name, CAN, SSN, Dates, Amount of Payment, ETC.)

• • SFD who align variable text vertical centered may use "XXX" or "999" in specific area's. Please see the specifications document for more details.

• Create an email:

  • Title of the email should be the software form developers NACTP number, the type of submission (new, resubmission, or courtesy copy), and the date of the submission.

  • The body of the email should list the forms being submitted at this time.

  • Attach each output PDF to the email.

  • Email the submission to DOR_FD_Vendor@state.co.us.

  • Submission time frames:

    • The first submission of forms marked as "Final", should be submitted by the date located in the "submit no later" than column of the 2025 Colorado Tax Grids by year. 

    • Some forms will have line reference updates later in the season. A courtesy copy is due within two weeks of the updated posting. 

Submission Guidelines:
To avoid returns or rejections, ensure all submissions meet the following criteria: 

• Test cases must be contained in their own PDF.

• Forms should be complete and in the order presented in the 2D Test Package.

• Version date must match the current 2D Test Package and Layout.

• Email 2D submissions to DOR_efileadmin@state.co.us