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Retirement

How to Find a Lost 401(k) From an Old Job — and What to Do With It

A bundle of old papers tied with string, next to old photos, with a sticky note reading “Still yours?”.
Photo by Joanna Kosinska on Unsplash

Think back through every job you've had: the one in the 1990s that lasted three years, the company that got bought, the one you left in a hurry. If any of them offered a 401(k) and you signed up, there may be an account nobody has looked at in a decade or more. That money doesn't vanish. It can move without anyone asking you, though, and then the job is figuring out where it went.

See the free searches, in order

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By Ray Castellano · Updated Sep 29, 2026 · Reviewed against DOL EBSA, PBGC, IRS, SSA

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A forgotten account can drift in a few directions. Plans are allowed to push small balances out to an IRA the former employee never picked. Companies merge and switch recordkeepers. Uncashed checks can land with a state unclaimed property office.

The sums aren't small. Take fiscal year 2025. That year, enforcement staff at the Labor Department helped 8,015 people collect pension benefits their old plans owed them but hadn't paid. The total came to $512.5 million. And finding the account is only half of it. The second decision, what to do with it, is where people lose money to taxes.

See the 60-day rule and the 20% withholding

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Why an old balance can look smaller than you remember

Finding the account is one surprise. The number on it can be another, and there are a few ordinary reasons it may not match the last statement you saw.

  1. The match wasn't fully yours yet. Your own contributions and their earnings were yours from day one. The employer match may not have been, since 401(k)-type plans can require up to three years of service for full vesting all at once, or up to six when it vests a bit each year.
  2. A short stay. Leave after 18 months and the unvested part of the match can go back to the plan. That's allowed. Keeping vested money isn't.
  3. A forced move to an IRA. A plan can pay out a vested balance of $7,000 or less without consent. Above $1,000, it generally has to go into an IRA at a custodian the plan chose, often parked in a conservative investment.
  4. Years of small fees. That IRA may be charging a fee that's been nibbling at a small balance for a long time.
  5. A number that still looks wrong. Ask the plan for its vesting schedule and your service dates in writing.

Those explain the number. The article covers finding the account in the first place, with the free searches in the order to run them, and how to move the money without an avoidable tax bill.

See the four options once it's found

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