I need to upload colo state form dr1307 after I filed? An addendum?

This can be done through an amendment. TurboTax does not support the Colorado (CO) form DR1307.  

With TurboTax Desktop, you can calculate the credit and manually add it to your 1040-X amended return. Once completed you can print and mail the amendment with your completed form DR1307.

• How do I switch from TurboTax Online to TurboTax Desktop?

Follow the steps to amend your 2024 tax return.  If you want to make changes or add a document to a tax return that has already been filed and accepted by the taxing agency, you should follow these guidelines. 

• You must first wait until the initial return is completely processed.
• You will have to use the same TurboTax account that you used for the original tax return.
• Once you begin your amendment, you'll see your original return.
• The refund calculator will start new at $0 and only reflect the changes in the refund or tax due
• Only make changes to the areas of your return that need to be corrected.
• You have three years from the date you filed your return or two years after you paid the tax due (whichever is later) to file an amendment

Select your product below and follow the instructions. 

Amend TurboTax Online 

Amend TurboTax Desktop