Someone died with money in a bank account in their name alone, and nobody was named on it. That money belongs to their estate, and the bank needs to know who has the right to collect it. If the estate is small, most states give the family a shortcut: a sworn statement called a small estate affidavit, which lets an heir collect the property without opening a probate case.
The rules are set state by state. Each state picks its own dollar limit, its own waiting period after the death, and what the person signing has to swear to. This page walks through how it works, with the statutes from six states, and points you to your own state's figures.

