Thank you for the information. I don't like the fact we have to check 'other' rather than 'gift'. If you read the 'Learn More' adjacent to Donor's Cost Basis it alludes to adding your improvements to the donor's cost basis. In fact, if you insert your gross proceeds from the 1099-S into the 'Net Proceeds' location, check the box and insert your sales expenses and insert your cost basis at the time of sale into the 'Donor's Cost Basis' location, Turbo Tax appears to compute the gain correctly.
