How do I find a lost 401(k) or old pension?

Short answer

Search the National Registry of Unclaimed Retirement Benefits with your Social Security number, check the PBGC's unclaimed pension search if a former employer's defined-benefit plan was terminated, and search the unclaimed property portal of the state where the employer or plan administrator was located, because small balances are often escheated there. Old plan statements and Form 5500 filings identify the administrator to contact directly.

Search in this order

Each source holds a different kind of retirement money, so a single search is rarely enough.

  • National Registry of Unclaimed Retirement Benefits — employer-reported unclaimed balances
  • PBGC unclaimed pensions — terminated defined-benefit plans the agency took over
  • State unclaimed property — small cashed-out balances escheated after the plan lost contact with you
  • The plan administrator itself — identified from old statements or the plan's Form 5500

Why balances go missing in the first place

Plans lose contact when you move without updating an address, when an employer is acquired or shut down, or when a small balance is force-transferred out of the plan after you leave. The money is still yours; it just stops showing up on a statement.

Related questions

Can I lose a 401(k) permanently?

Vested retirement money is not forfeited for being forgotten. It moves — to an IRA, to the PBGC, or to a state unclaimed property program — but it remains claimable.

Do I owe taxes when I recover an old 401(k)?

Rolling the balance into an IRA or a current employer plan is not a taxable event. Taking it as cash generally is, and may carry an early-withdrawal penalty.

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