Next of kin
The closest living relative or relatives, as the law of a particular state defines them — not as a family would.
What it means
A phrase that appears on forms far more often than it appears in statutes, and it means something slightly different every time. On a motor vehicle affidavit it usually means whoever the intestacy rules would send the property to. In a hospital it usually means whoever may make a decision. Neither is a definition you can carry from one office to another.
It is not a rank you hold. It is a description of where you sit in a list that the law writes, and the list changes with who else is alive.
Why it matters
Forms ask you to sign as next of kin without telling you who qualifies, and signing when somebody closer is alive is how a transfer gets undone later.
Being next of kin is not the same as being entitled to anything: a person can be the closest relative and still inherit nothing, because a will or a beneficiary designation decided it first.
When you are likely to meet it
- On a motor vehicle affidavit that asks the next of kin to sign on behalf of the estate.
- At a hospital or a coroner's office deciding who may authorize something.
- When a form offers no other category for the person actually doing the work.
How this varies by state
Who counts as next of kin, and in what order, is set by each state's intestacy statute.