Check your resume or CV
Review your LinkedIn profile
Look at old job applications
Search email for offer letters, contracts, and onboarding documents
Check pay stubs and tax forms
Review employment records from previous employers
Contact former employers’ HR departments
Check your personal files and folders
Review background check reports if available
Use government employment records or tax records if accessible
Ask former coworkers or supervisors to confirm dates and roles
Search professional networking profiles and portfolios
Review bank statements for payroll deposits
Check unemployment or benefits records
Use a work history report service if available