If you selected code 4 for box 7, marked the IRA/SEP/SIMPLE box, indicated that you inherited the IRA from which you received the distribution from [financial institution] and indicated that the decedent had made nondeductible contributions to traditional IRAs, TurboTax will indeed ask you to enter the taxable amount of the distribution. Under any other circumstances, TurboTax should not ask you to enter the taxable amount.
