How do I renew a Belgian single permit and what if there's a delay?

Renewing a single permit is something you should start well before expiry. Renewal requests go to the competent region, and applying ahead of time – commonly at least two months before the permit runs out – helps keep your status continuous.

If the decision is not ready in time, the municipality can issue a temporary certificate so you are covered while processing continues. Long-term workers who continue to meet the conditions may, over time, move toward more durable status, but timely renewal is the key to avoiding gaps.