So the answer is yes, you can. Put the word "Died" in the SSN cell. Then attach a birth certificate and death certificate in the usual place on Screen 4. However, you need to link it to Form 1040-Other - Do not use the obvious drop down "Birth Certificate" or it will kick out a diagnostic - counter intutive on that and no reason given by Lacerte why that is. Perhaps it will change in the future.