Now you tell us. <g>
I did all of those except # 1. I do have copies of the filed .tax2018 and pdfs produced at the time of filing.
I did not turn off automatic updates. So one of the recent updates (not sure which since the relevant change is not reported in the notes) changed the return so it reports a different tax bill. The interesting thing is the program change which affected our return was apparently a correction of an IRS error in one of their worksheets.
If automatic updates were turned off, I would not know about this correction. I am not sure whether it is a good idea to turn automatic updates off. The update could be a correction of an IRS error or Turbo Tax error. I might well want to know about either. Maybe the only way to protect against this is to keep a copy of the program as it existed at the time of filing - in addition to the taxfile and pdfs.
