@The_AntiTax_Manthe problem for me wasn't that line - it was red when I first found it.  The problem is when you put a figure in that box ProSeries calculates deferred SE tax by default.  To override that you have to go to the 1040 worksheet and enter how much you want to defer so the calculated deferral doesn't flow through to the final 1040.  I personally am telling my clients about the deferral issue to let them choose, but am advising them against it.