for the most part Turbotax uses nothing in box 20. this ordinary income must be entered in the sub worksheet for the disposition of your interest. it is not entered directly through the k-1.
this ordinary gain is part of the capital gain calculation because it is part of your tax basis for gain
original cost
+/- adjustments to basis
+751 gain
= tax basis for capital gain calculation.
I'm starting to see some supplemental sales worksheets already have a column for adjusted basis before the 751 gain. it varies from PTP to PTP
look at the sales worksheet it describes what is included in each column. the sales info should only reflect the items affecting the shares you sold
