Can I change employer while holding a Belgian single permit?

Changing jobs on a single permit with limited labour-market access is possible, but it requires action. Your new employer must submit a new single-permit request for you – ideally while your current permit is still valid, or within 90 days after your previous employment ends.

Because a limited-access single permit is tied to a specific employer, you should not simply start with a new company without this step. Coordinating the new request early helps you avoid losing your right to work during the change.