Announcements Tax Year 2026

Hello,

This email is to notify you that the following forms have been posted. Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet. 

Final:

The following forms are now being accepted for Substitute Form Review

• DR 0104CN

• DR 0104EZ

• DR 1217

• DR 1305

• DR 1305E

• DR 1305F

• DR 1305G

• DR 1317

• DR 1322

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello Everyone,

This is a reminder that the initial submission of the following forms should be submitted no later then 10/16/26:

Forms:

• DR 0104BEP

• DR 0104EP

• DR 0105

• DR 0105EP

• DR 0106EP

• DR 0112EP

• DR 0145 - Should be treated as a new form.

• DR 0154 - Should be treated as a new form.

• DR 0155  - Should be treated as a new form.

• DR 1102  - Should be treated as a new form.

• DR 1108  - Should be treated as a new form.

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello,

This email is to notify you that the following forms have been posted. Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet. 

Final:

The following forms are now being accepted for Substitute Form Review

• DR 0112

• DR 0112C

• DR 0112CR

• DR 0112RF

• DR 0112X

• DR 0113

• DR 0617

• DR 0618

• DR 0619

• DR 0990

• DR 1079

• DR 1083

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello Everyone,

This message is to notify you of an update to the DR 0106EP, which was previously posted as "Final".

• DR 0106EP (New Revision Date: 06/08/26)

  • Check mark box, line thickness has been decreased.

If your DR 0106EP form is:

• Approved - Please send a blank courtesy copy showing the update to the form.

• Under review -  Please wait for your results email before resubmitting. This is to avoid any duplicate submissions. 

• Not Approved or Not Submitted - Please make the updates and submit as normal. 

Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet.

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello,

This email is to notify you that the following forms have been posted. Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet. 

Final:

The following forms are now being accepted for Substitute Form Review

• DR 0104AMT

• DR 0104CH

• DR 1330

• DR 1366

• DR 1370

• DR 1465

• DR 1705

• DR 1706

• DR1778
  
  

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello Everyone,

This message is to notify you of an update to the DR 0158-N, which was previously posted as "Final".

• DR 0158-N (New Revision Date: 09/16/26)

  • The revision date was changed from 06/11/25 to 09/16/26

If your DR 0158-N form is:

• Approved - Please send a blank courtesy copy showing the update to the form.

• Under review -  Please wait for your results email before resubmitting. This is to avoid any duplicate submissions. 

• Not Approved or Not Submitted - Please make the updates and submit as normal. 

Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet.

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello,

This email is to notify you that the following form have been posted. Visit the Tax Forms By Year Page (access page here) and select the current tax year. 

Final:

• 2D barcode layout for TY2026 version 26.0

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello,

This email is to notify you that the following forms have been posted. Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet. 

Final:

The following forms are now being accepted for Substitute Form Review

• DR 0158

• DR 0158-C

• DR 0158-F

• DR 0158-N

• DR 0900

• DR 0900C

• DR 0900F

• DR 0900P

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello,

This email is to notify you that the following forms have been posted. Visit the Tax Forms By Year Page (access page here) and select the current tax year, to access the tax grid spreadsheet. 

Final:

The following forms are now being accepted for Substitute Form Review

• DR 0104BEP

• DR 0104EP

• DR 0105

• DR 0105EP

• DR 1016EP

• DR 0112EP

• DR 0145 - Should be treated as a new form.

• DR 0154 - Should be treated as a new form.

• DR 0155  - Should be treated as a new form.

• DR 1102  - Should be treated as a new form.

• DR 1108  - Should be treated as a new form.

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello All,

The DR 1093 & DR 1094 has not been updated this year and will not require a review if already approved from previous years.

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

Hello Everyone,

Colorado received a 2026 version of the DR 0106K with a reversion date of 07/09/26, using the CDOR 9999 vendor ID. The revision date does not match this year or last year. 

This form has not been released for replication. Nor, is it being accepted for taxpayer submission until January of 2027. Please check your systems to make sure a 2026 version of the DR 0106K has not been released to the public.

Please let us know if you have any questions.

Thank you,

Hello Everyone,

We have updated the LOI to correct the following:

• In the "MeF Forms" table, the estimated payment form for partnerships and S corporations has been updated to reflect the correct form number: 

  • "DR 0106EP – Colorado Partnership and S Corporation Estimated Tax Payment Form"

For any vendors that have already submitted a 2026 LOI and who have indicated that they will support estimated payments for pass-through entities, our team will verify the responses and make any necessary corrections on our end.

Please let us know if you have any questions.

Thank you,

Substitute Form Developer Review Team

 Hello All,

The Colorado Letter of Intent (LOI) has been released!

The LOI PDF is attached to this email. It can also be found on the Colorado Substitute Form Developer website. 

Finalized forms will begin to be posted on the website beginning in September.

Please let us know if you have any questions.

Thank you,

Thank You, 

Colorado Department of Revenue Taxation Division