Register for social security when you start working for yourself in Belgium

You usually need a social security number before you start work, and your employer often uses it to register you. Self-employed people normally register themselves. Depending on the country, you apply to the social security office yourself or the number is linked to your address registration. Bring your passport or ID and, if you have them, your employment contract or business registration. A social security number does not by itself give you health cover or benefits; those may need separate applications.