You're quite right, I HAD transferred all of the information on my W-2 to TurboTax, without filling Box 15 since I live in a no-income tax state; I did enter the state and the figure. When I went back and simply deleted the State income data completely I was able to E-file with no problem.
That said, for 2021 -- I checked -- the state and income boxes were populated, nothing in the Employer's state ID # box, and E-filing went without a hitch. TurboTax users should be able to expect the same actions to produce the same results from year to year unless a change in procedure is obvious. As it was, I had no clue what I was doing wrong.
Thank you SteamTrain!
