Retirement tax questions

If there is still income for his estate, you will file a Form 1041 Estate Tax return.  That will produce a Schedule K-1 for each beneficiary.  The Schedule K-1s for each beneficiary's share will then be reported on their individual income tax Form 1040.

You will need the TurboTax Business software to prepare the Form 1041 and Schedule K-1s. 

Here is the link to the TurboTax Business Software