So that is where my confusion is.
In TurboTax, it states that if one has only short term covered sales, one can summarize without the need to send in 1099B, and the brokerage firm has already confirmed that the 1099B was sent to IRS.
If the IRS understands that you need to add the W2 box 1 amount corresponding to this NQ stock option exercise to the 1099B cost base, Why does one need to add/attach 1099B which IRS has already received?
My question is that is it really a must to mail in 1099B again?
