It is one official stop, not a complete map of every old account in the country. We make Asset Recovery: Lost 401k, a free app that opens this page (and the other official searches) after you enter a former employer. You do not pay us to run the lookup.
The database is meant to connect you with a plan administrator who may still hold benefits in your name. A match, when the site has one, is contact information so you can follow up. It is not a button that deposits money into your bank account.
Search happens on the Department of Labor site. You verify your identity with Login.gov, then the lookup is tied to your Social Security number there. Asset Recovery: Lost 401k does not ask for that number. If the government site needs it, you type it on the government site.
Plan filings behind the database can be old. A result may show an administrator or address that has changed. An empty result can mean the plan never sent your record, not that you have no 401(k). Treat one search as a start.
As of early 2026, the Department of Labor has focused the searchable records on people who have reached about age 65. Younger workers can still open the site, and many will see nothing yet. That limit is about the database rollout, not about whether an old job left a balance behind.
The DOL lost and found 401k search is for certain private-sector and union workplace plans, including many 401(k) and 403(b) plans and some pensions. It does not replace:
An IRA you opened yourself
Many government or religious-organization plans
Social Security benefits
A plan that shut down (Abandoned Plan Search is the closer match)
A pension taken over after an employer failed (PBGC is the closer match)
If you are under 65, or the Lost and Found comes back empty, the account is often still at the old job. Start with the company name and the years you worked, then contact that employer's plan administrator or former HR. If the company closed or the plan was shut down, use Abandoned Plan Search. A traditional pension from a failed plan is a PBGC search. The National Registry of Unclaimed Retirement Benefits is a free extra list, but only plans that uploaded a name will show up. That order is the same one in our guide to finding a lost 401(k) from a previous job.
Asset Recovery: Lost 401k is a guide, not the government. You log the company and the years you were there. The app opens the official Lost and Found page so you are not hunting for the URL. Identity checks stay on Login.gov and the DOL site. Searching is free. Optional partner links, if you later want help moving money, stay optional.
A short list of former employers beats a single search with a half-remembered plan name. Each job can point at a different database. Lost and Found is the one built for "I left the account at an old employer." Closed companies and failed pensions need the other official pages, which the app also opens.
If you want a comparison of apps before you start, see apps to find a lost 401k. Then come back to the employer list and the DOL page.
A hit means "contact this plan," not "the balance is already yours in hand." The administrator confirms who you are and what, if anything, the plan still holds. After that, people usually leave the money, roll it over, or cash it out. Those choices have tradeoffs. This page is general education, not financial advice.
Open the Lost and Found from Lost 401k when you are ready. Start on our Asset Recovery page or download the app.