Get your taxes done using TurboTax
I ran through a test case using TurboTax Deluxe just to make sure the advice given earlier was valid. I still saw the follow-up question asking whether the 1099-R was for 2019 or 2020.
One thing to try would be to delete the 1099-R in question and re-enter it, going all the way through the follow-up questions. If that still does not work, take a look at the following picture taken from 'forms mode'. It shows where to find the check box to indicate a 2020 Form 1099-R. Select the Form 1099-R on the left side and scroll to the section pictured below.
