Solved
Withholdings are reported as line 4 on my 1099-B. But TurboTax only asks about gains/losses and doesn't allow me to add the withholdings. Should I add these as additional estimated tax payments?
i.e., when you enter, or edit the particular transaction in question.....look for the following:
(This is for the "Online" software. Desktop shows it a different way without checking a box)
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