The Internal Revenue Service generally gives you until April 15 of the year following the taxpayer's death to file a final 1040 form. To open an estate bank account, you must provide specific documentation.This may vary from bank to bank but generally includes the following: Refer to Their Will. For paper returns, the filer should write the word deceased, the deceased person's name and the date of death across the top. - Pay decedent's bills and taxes. Protect the decedent's property from waste, loss, fraud or theft. Here's what you need to know about the deceased's final tax return, reporting income and deductions, inheritance and more. Nevada filing is required in accordance with Nevada law NRS 375. In this detailed guide of Nevada inheritance laws, we break down intestate succession, probate, taxes, what makes a will valid and more.