File the final income tax returns of a deceased person for current and prior years, pay any balance due and claim the refund. File an estate income tax return.For paper returns, the filer should write the word deceased, the deceased person's name and the date of death across the top. Find common questions and answers about estate taxes, including requirements for filing, selling inherited property and taxable gifts. Your account balance will be paid out according to the most recent beneficiary form on file. The form requires the claimant to provide information about the deceased taxpayer, including their name, Social Security number, and date of death. There will always be a due date on the notice. It is important that a response is made. The IRS provides an extended filing window, allowing taxpayers to make that election up to six months after the standard tax return due date. Personal income tax.