I am running into the same issue. I spent almost 3 hours on the phone with Turbotax trying to figure this out but the software doesn't seem to be updated to allow for this. They had me switch from the online turbotax to the desktop download version so that I could work in the individual forms. It seems as if the worksheet for the pension as well as the Schedule 1 is not carrying over information correctly and the 6a box on the 4884 is not being considered. In my opinion, after choosing the type of pension plan (G - from a government or public source (qualifies for exclusion based on age)", there needs to be a further question asking if you received benefits from this plan from service as a public safety retiree to trigger the box 6a being checked, in order to populate the Retirement and Pension Benefits Subtraction on line 27 of Schedule 1.
Turbotax needs to fix this ASAP! The state of Michigan website says all 2023 forms have been updated to reflect the change in the law, and they advise people should not wait to file their taxes in anticipation of the Feb. 13 effective date. They can't legally process the returns with a form 4884 until that date, but Turbotax should be up to date with these changes because the state of Michigan already is. According to Turbotax's Tax Form Availability, the 4884 as well as the Schedule 1 are up to date and available. But obviously they are not working correctly, at least for public safety officer pensions.
I was told I would have to manually file my state taxes because Turbotax is not doing it correctly, which is ridiculous since the reason I use Turbotax is to complete and file all my taxes, with confidence that they are done correctly.
