Note that you must close all of your Roth IRAs to be able to recognize your unrecoverable Roth IRA basis. You would do this by making a regular distribution, code J if you are under age 59½, code T if you are over age 59½ but it has been less than 5 years from the beginning of the year for which you first made a Roth IRA contribution, code Q if you are over age 59½ and it has been more than 5 years from the beginning of the year for which you first made a Roth IRA contribution. But which of these codes you use does not really matter. What matters is that after entering the Form 1099-R you click the Continue button on the Your 1099-R Entries and proceed to where TurboTax asks you to enter your basis in Roth IRA contributions and do so. If your basis in Roth IRA contributions is more than the amount that you enter as the distributions to close out all of your Roth IRA accounts, TurboTax will automatically report the unrecoverable basis as a miscellaneous deduction on Schedule A line 23.
