My sincere condolences for your loss.
If a refund is due from your son's tax return, you should complete a Form 1310, Statement of Person Claiming Refund Due a Deceased Taxpayer, to file with the tax return.
You should request a paper check for the refund. The bank could reject a direct deposit to an account that is not in the deceased taxpayer's name.
Click here for instructions on how to complete Form 1310 in TurboTax.
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