This did not work for me. I went through each of the 8949 transactions and not one had anything in box 18a or 18b, yet I have information showing up on both line 1a and 1b, and on line 8a and 8b for long term gains and losses. You are only supposed to use just line 1a or 1b, and the same goes for line 8a or 8b. I can't even figure out which transactions are not being reported. Help desk said I should modify manually and file a paper return. I don't get it . It worked perfectly last year, but not this year. I even deleted everything and did a new import and got the same results.
