Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format.Decedent must have been a resident of Middlesex County when they died. Certified death certificate for the decedent. When it comes to handling the decedent's bank accounts, we're here to make the process as simple and straightforward as possible. To sum up, I want to inform you that my husband died in a car accident on 28th July 2022. Moreover, he has a savings bank account in your bank. Sample Notice of Death. The terms in your document will update based on the information you provide. I need to write to several organisations including banks, insurance and mortgager company to inform them of my partners death.