Should I add a second Form 1099-9?

Do you mean 1099-B?  Or do you mean something else?

You may receive multiple 1099-B's.  But all of the entries will be reported on IRS form 8949 / Schedule D Capital Gain and Loss.

Adding additional  1099-B's into TurboTax makes it easier to review 1099-B entries before they are re-sorted by long and short term and gain and loss on Schedule D.

A broker must file IRS form 1099-B for each person:

• For whom, they sold stocks, commodities, regulated futures contracts, foreign currency contracts, forward contracts, debt instruments, options, securities futures contracts, etc., for cash,
• Who received cash, stock, or other property from a corporation that the broker knows or has reason to know has had its stock acquired in an acquisition of control or had a substantial change in capital structure reportable on Form 8806, or
• Who exchanged property or services through a barter exchange.

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