Part of your reply was "Therefore, if your K-1 (1065) form has an amount in box 20 with a code of one or more of Z to AC, those are the amount(s) that are needed for the QBI deduction calculation."
I am currently in TurboTax 2019 and the last allowed box is 17 when entering the K-1 data.
I am trying to understand why TurboTax calculated the 20% QBI for me in 2018, but not in 2019. My business structure remains unchanged and I am well under the income threshold.
