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Thanks. Got 1099-B showing stock option buy / sell  simultaneously with a capital gain.  This is what will be reported to IRS with gross proceeds, cost basis and that capital gain.  However, because it’s a short term gain, this gain was immediately transferred to my company as ordinary income and included in a payroll check with all taxes taken out.  

A 1099 Supplement was included with the 1099-B showing the adjustment of that gain being removed to zero it out since I already got taxed on the gain.  This supplement is not reported to IRS so I have to make the adjustment in column g to remove that gain (believe it will be the negative of the gain amount?).  I then don’t know the code to use in column f (since the gain is actually incorrect then thing “B”?).