In TurboTax, your husband needs to enter the form 1099-R that he received for the distribution. On that form, there is a code in box 7 which will indicate that the distribution is an early withdrawal. He has to follow the 1099-R to the end. If he is liable for the 10% penalty, TurboTax will calculate it, fill out form 5329 and include the amount of penalty in the final refund or tax due on the tax return. He does not have to pay the penalty separately.