To check your EPF balance, the first thing you’ll need is your Universal Account Number (UAN). This is a unique 12-digit ID assigned by the Employees’ Provident Fund Organisation (EPFO) to every contributor. What makes the UAN especially useful is that it remains the same throughout your career—even if you switch jobs. Each time you join a new employer, the EPFO simply links the new EPF account to your existing UAN, allowing you to track your entire retirement savings under a single umbrella.