To close a bank account on behalf of someone who has passed away, you must have legal authority to manage the account. One thing for sure is that the bank will want to know the specific reasons for the removal request as the next-to-kin.We're here to help when a loved one passes away. The death of someone close to you is difficult, and dealing with his or her finances can feel overwhelming. 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. This is to notify the bank that my. (Relationship with deceased). Further, the caseworker will contact the listed NOK to confinn. I declare the following named is my true next of kin to be notified in the event of my death:.