Offices that help you get a BIS number in Belgium

Most want an email, form or phone call before a visit

Where a town office handles this, you can see whether it starts with an online form, a phone call or an appointment, which documents it wants copies of, and what to say so that you reach the right desk instead of a residence application.

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1 office in Aalst

  • Aalst

    Administratief centrum Aalst

    Werf 9, 9300 Aalst

    Phone first to ask for the right appointment, and do not pick a residence application just to get the number.

    Office website+32 53 77 93 00

    Have a valid national identity card or passport and details of the authority requesting identification. Ask for the case-specific evidence list and the delivery time, as no separate complete BIS checklist or delivery time is available. Disclose any existing Belgian identification number to avoid a duplicate. For employment, your current or future employer may instead request identification through belgianIDpro.

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Where to next

BIS number for non-residents

Frontier workers, short-stay students and others who deal with Belgian authorities from abroad may need one. See how a request usually starts.

Register as a non-resident in Belgium

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