The International School of Brussels (ISB) Admissions Guide 2026

How admission to The International School of Brussels (ISB) actually works — timeline, assessment, and the practicalities for international and mid-year applicants.

Reviewed by Priscilla Han · 2026-07-24

How admission to The International School of Brussels (ISB) works, step by step.

ISB is an independent, not-for-profit school serving students from preschool (French from age 2.5) through Grade 12, organized into ECC (Preschool–Grade 2), Elementary (Grades 3–6), Middle (Grades 7–9) and High School (Grades 10–12). Inclusion & Challenge services provide personalised support across all age groups. Prospective families should confirm current entry requirements with the admissions office.

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