To amend the 2020 Michigan return, you must initiate a federal amendment to return into the program and update Michigan.
To do this in TurboTax, follow these steps:
- From Tax Home, scroll down to Your tax returns & documents and Show More.
- Go to 2020 and select Amend(change) the return.
- This must be selected before any changes are made to the filed return so that Form 1040-X shows what was filed first, the change, and what is filed now.
- Once the Amend(change) return is started, follow the prompts.
For more information, see: 2020 MI-1040 Instructions Booklet
