Andrew, I was having a similar situation with my total gain not corresponding with my proceeds and cost basis. I found the answer. It was due to a disallowed wash sale. The math was taking from my Proceeds, adding the Disallowed Wash Sale to that figure. Then the cost basis was subtracted from that figure. The Disallowed Wash Sale was then subtracted from that new figure. That new amount was the total gain that was displaying in TurboTax.
