In the following sections, we review what a bank account beneficiary is and how to find out if you've been designated as one. Proof of death, such as certified copies of the death certificate.When one party dies, the survivor owns all remaining assets in the account. Letter of instruction. Online: Use our online form to notify us about a customer's death. The death of a spouse is a heart-rending time for family, particularly the surviving spouse. Get the resources you need to help navigate someone else's financial affairs. NC General Statutes - Chapter 28A Article 25.