When entering sales of employee stock purchase plan stock, Turbo Tax mentions that the Box A (or D) 1099-B cost basis provided by the financial institution is incorrect and the supplemental information they provide has the correct cost basis. I have both of these cost basis numbers and can see the difference. When I choose to make adjustments, it appears there are adjustment codes to use. What is the correct code to use in this case (ESPP stock sale adjustment)?
