To make my question more clear, let me explain my situation in more details (without real numbers):
For example, I have three W2 forms, and the summation of Box 1 of all three W2 forms is "X". I see the number on 1040 Line 1 is not "X", but "X+Y". I want to know how this number "X+Y" is calculated.
I have already figured out (to some extent) where this "Y" comes -- it comes from a transaction of my ESPP selling. However, in the worksheet of that ESPP transaction, it only listed this number "Y" in a line named compensation income. I want to know how this "Y" is calculated. But I do not know how. :(
Furthermore, I have other transactions of ESPP as well. On worksheets of other transactions, there is NOTHING listed as compensation income. I.e. they all have "0" on the same position as the "Y" above. I want to know how that "0" is calculated. Or in other words, why those transactions have "0" as compensation income, but only one transaction has "Y". Anyone knows how to figure this out in TurboTax?
