I don't know if this thread is still active, but here's my question. The Schwab 1099-B adds disallowed losses to the basis of subsequent sales. Which I understand, however, it continues to do this for all future buys so that the total Cost Basis is a meaningless number.
Scenario 1:
First disallowed loss - xxshs proceeds of $100 with basis of $120 will show zero loss. You suggest that the basis be entered as $100 to get to zero g/l.
Scenario 2:
Disallowed loss of $20 above is added to subsequent basis. Therefore, total basis of $120 ($100 above and $20 adjusted here) which is correct. However, The Schwab 1099-B will show $140. Therefore Column (e) of Form 8949 won't match the 1099-B which I thought how it should work.
If however, you match Column (e) to the 1099-B, you have to make bogus adjustments to get to the right gain/loss.
Not sure if I stated this clearly, but this must be a common thing though I can't seem to find the right thread here to address it.
