How to prove years of service without social security

Go to the personnel office of the organization and explain the situation, so that the relevant staff can issue a certificate of years of work. If you keep the entry registration form, payroll records, employee handbook, certificate of termination of labor contract, labor contract, etc. can legally prove the years of work.

The length of service refers to the cumulative time an employee has worked in the same organization, usually measured in years. The length of service is an important indicator of an employee's work experience and stability, and has different meanings and impacts in different fields and industries.