This is exactly what I happened as you predicted - automatically imported 1099-B and W2 but got concerned when there was no way to "correct" the basis. Since TT did not complain and during 1099-B, there was no question to prompt it, I assumed all was well and correct. I filed my tax return for this year, and sadly the realization of this screw up happened when looked at older tax filing and compared the forms. (I owe a lot due to this mistake).
What do I do now?
