Thanks for the tip @AlexanderS08 ! I only looked at Schedule M1SA for MN Itemized Deductions, which also references the limit. However, I needed to look at MN State Form M1 Line Instructions that includes a Worksheet for Line 4 - Standard Deduction LIMITATION. This explains why TurboTax didn't include MN Schedule M1SA and what is NOW the correct Deduction amount. I will mark this resolved. I still don't know why it wasn't correct the first time with the limitation applied to my Deduction upon 2/1/20 preparation. It would have been nice to be informed the state return was not complete / ready for filing or notified of the change to my In- Process return.
