B Permit (based on Job Offer)
A B permit is valid for one employer and runs for one year, after which it can be renewed (by the same employer, usually for the same job or job classification). If you change employers, your new employer must apply for a new B permit. You may find that you have to return to your home country and re-apply for a residence visa before you can start your new job! Once you’ve renewed a B permit four or more times, i.e. have lived and worked in Belgium for five years on the same permit, you can receive an unlimited A permit.