Check your most recent pay stubs for 401(k) deductions and plan provider information
Review old W-2 forms for retirement plan contributions
Log in to any current or former employer HR or benefits portal
Contact your former employer’s HR or payroll department
Search your email for account setup messages, statements, or provider names
Look through old bank statements for payroll deductions or rollover transfers
Use the National Registry of Unclaimed Retirement Benefits
Contact major 401(k) providers directly if you remember the company name
Search the U.S. Department of Labor’s abandoned plan database
Check with the plan administrator listed in your old employment records
If you changed jobs, ask whether your old 401(k) was rolled over to an IRA or new plan
Gather your Social Security number, old employer names, and employment dates before contacting providers