You would do it using the TurboTax import feature after your financial institution has submitted the data to
TurboTax. The IRS mailing
deadline is Feb. 15, 2018 for Form 1099-B, and other forms related to an account
which could receive a Form 1099-B. The Form 1099-B reports sales of securities.
To use the import feature, click on
How do I import my 1099?