Thanks!! That makes sense given the instruction for the form, and yet when I look at my K-1 and the Shareholder Basis Worksheet our company accountant provided, the OBI does NOT include deductions against the stock basis (charitable contributions + nondeductible expenses) OR an 'other decrease' to the stock basis which was a transfer of shares to some of our other owners. My point here is that the only way to have Lines 1, 3a, and 15 in form 7203 match my K-1 is to have the 3 types of reductions in stock basis taken into account. Since Line 13 is the only one in the Turbo Tax version of the form that allows manual entry (Line 11 is calculated based on Part III) it seems the only option to make the math work. What am I missing?
