Universal Account Number is a 12-digit number, every employer contributing to EPF has. The Employee Provident Fund Organisation (EPFO) allots it. UAN of an employee remains same throughout life irrespective of the number of job he/she changes. Every time an employee switches job, EPFO allots a new member identification number (ID), which will be linked to the UAN. You can put in a request for this new member ID by submitting the UAN to the new employer. Once the member ID is created, it gets linked to the UAN of the employee.