I am using TurboTax Premier 2020 PC version.
I see the 1040 Line 1 is larger than Box 1 on my W2. But when I click the "magnifying glass" button beside it (in the form mode), it only listed my W2 forms, and does not explain how that number is calculated.
After I dig into lots of forms, I figured out that the additional part comes from one transaction of my ESPP. However, in the worksheet of that transaction, it only listed a number there, and does not explain how that number is calculated.
How can I find out how that number is calculated?
More general, for any number in TurboTax, how can I find out how that number is calculated?
