Who can help with this?  client died last year in 2021 age 34 left no will but has both parents still alive, they did not go to court go get appointed as there is hardly any money there. I am doing the parents income tax as well and they have received1099 r's for death  benefits from his work, no problem there/ I worked out son's income tax and he is getting a refund, what boxes do i check on  filing form 1310 for his father to receive the refund.  everytime I do this client gets a letter from irs that its wrong.  any other info you can give me would be great.  Help!! Thanks