For a copy of the deceased person's tax return, submit Form 4506, Request for Copy of Tax Return. There's a fee for each return you request.For paper returns, the filer should write the word deceased, the deceased person's name and the date of death across the top. Effective for dates of death on or after January 1,. You'll need the person's Social Security number and certified copies of their death certificate for most agencies and programs. Social Security and Medicare. Here's what you need to know about the deceased's final tax return, reporting income and deductions, inheritance and more. The worksheet will help you correctly determine the income to report on the decedent's final return and on the return for either the estate or a beneficiary. We'll need a photocopy of the death certificate to verify the identity and legal residence of your loved one as well as confirm date of death. Massachusetts requires estate tax returns to be filed within nine months following a death.