After you file

In Turbo Tax Basic,it'll come up automatically, depending on how you answer the questions about your IRA distribution.

To get Form 8915B to show up in your Print menu, go through the IRA, 401(k), Pension Plan Withdrawals (1099-R) section till you get to the screen below.

Answer the following questions till you get to the end of the section.  If you go to Forms in the upper right-hand corner, you'll see it on the bottom of the left-hand side,