Death Master File
A federal record of reported deaths, used by insurers and institutions to identify account holders who have died.
What it means
The Death Master File is compiled from death reports received by the Social Security Administration and made available in limited and public versions.
Insurers are required by many states to compare their policy records against it periodically and to make an effort to find beneficiaries of policies that match.
It is not complete. A death that was never reported to Social Security, or that was reported with a mismatched name or number, may not appear.
Why it matters
It is the mechanism behind unclaimed life insurance benefits being found and paid without anybody asking, and behind a state's unclaimed property program holding money for a family that never knew about a policy.
It also occasionally makes the opposite error: a living person recorded as dead, which takes real work to correct.
When you are likely to meet it
- When searching for a life insurance policy nobody can find.
- When an insurer contacts a family unprompted.
- When accounts are frozen because a death was reported in error.
How this varies by state
Whether an insurer must run comparisons against the file, how often, and what it must do with a match are set by state law.