The International School of Brussels

Kattenberg 19, B-1170 Brussels, Belgium. It is in Watermael-Boitsfort, the south‑east quadrant of Brussels. The 40‑acre campus sits within the Forêt de Soignes and offers extensive outdoor learning facilities; it is easily reachable by car, bus, train and tram.

Early Childhood Centre (Preschool – Grade 2); Elementary School (Grade 3–6); Middle School (Grade 7–9); High School (Grade 10–12).

Private not-for-profit international day school.

Inclusion & Challenge services provide personalised support for diverse learning needs across all age groups.

Belgium

The ISB Bus Service operates with more than 30 buses serving most parts of the city and surrounding areas. It is available to students from Kindergarten to Grade 12, with BatOnRoute real‑time tracking and bus monitors. Late Bus Service is available for Middle and High School students; bus fees for 2025‑26: Return 3,140 Euro; One way 2,385 Euro.

Application fee

- Application fee (all grades): EUR 2,000.

Tuition fees (annual) — by year group

- Preschool (ages 2.5–3): EUR 22,590.
- Pre‑Kindergarten (4 years old): EUR 25,030.
- Kindergarten (5 years old): EUR 37,760.
- Grades 1–2 (ages 6–7): EUR 40,670.
- Grades 3–6 (ages 8–11): EUR 41,400.
- Grades 7–9 (ages 12–14): EUR 46,825.
- Grades 10–12 (ages 15–18): EUR 49,715.
- Intensive Learning Support (for ILS students): EUR 25,155 plus the relevant grade‑level tuition.

Per‑term (how fees are presented and typical payment structure)

- Fees are published and invoiced on an annual basis; the school issues invoices annually in May for the following school year. Because fees are set and invoiced annually, there is no official per‑term charge published. Families may choose the school's instalment plan, which spreads the annual tuition into monthly payments; the instalment plan divides tuition into up to 10 monthly payments (July–April). For simple budgeting, an approximate per‑term figure can be obtained by dividing the annual tuition by the number of academic terms you choose to use for your own budgeting (the school does not publish an official per‑term schedule).

Billing schedule and payment terms

- Invoices for the following school year are issued annually in May.
- Invoices for students joining during the school year are issued before the enrolment date.
- Invoices are payable within 30 days of the invoice date or prior to the student's start date.
- The parent (or legal guardian) is always responsible for payment of school fees regardless of any employer arrangements.

Payment methods and terms

- All fees are due and payable in EUR. Payments can be made by bank transfer to The International School of Brussels at BNP Paribas Fortis.
- Bank transfer details (for payments by bank transfer): SWIFT: GEBABEBB; IBAN: BE71 2100 5790 1069.
- Consolidated monthly invoices (for items such as lunch, athletics, music, ISB Plus) can be paid by bank transfer or by direct debit (SEPA mandate).
- There is no published option on the fee page for credit‑card payment; available options shown are bank transfer and SEPA direct debit.

Instalment / payment plan

- A family instalment scheme is available to individuals (not open to companies paying tuition).
- Typical administrative fee: EUR 200 per family, annually.
- The instalment calculation uses the cost of tuition plus an interest rate of 1% above the current EUR Central Bank rate and may be divided into up to 10 monthly instalments (July–April).
- The instalment scheme applies only to tuition fees (does not include bus fees or other related costs).

Bus fees

- Return trip (annual): EUR 3,140.
- One‑way only (annual): EUR 2,385.
- Bus fees are charged annually; there is no reimbursement of bus fees due to an inability to use the service.
- The school offers a separate payment plan for families who would otherwise find it difficult to pay the annual bus fee.

Other costs and optional charges

- Cafeteria: daily lunch is paid through student lunch accounts; a lost lunch card carrying fee of EUR 10 will be billed if a card is lost.
- Co‑curricular activities and ISB Plus: costs for clubs, activities and ISB Plus are optional and billed through the consolidated monthly invoice.
- Musical instrument rental: EUR 210 per year (rental from the school).
- Athletics fees: billed per season/per sport; typical player fees noted are EUR 270 for JV/Varsity teams and EUR 170 for U14 teams (additional travel costs for tournaments billed separately).
- International Baccalaureate Diploma Programme: students taking the IB will be billed for IB exam and administrative fees and any external examination expenses requested by the student.
- Other potential costs (examples): school trips, seasonal team travel, specialty courses, therapy or additional student support services — these are billed as they occur via the consolidated invoice.

Refunds, adjustments and pro‑ration

- Students who leave early: for students who have paid the full tuition (and bus, where applicable) and who leave before the last day of January, 25% of the tuition (and bus) fee will be reimbursed by the school. If a student leaves after the last day of January, there is no reimbursement of fees already paid.
- Students who enrol late: the school publishes monthly pro‑rata amounts by level (the published schedule shows the reduced amounts for each month if a student starts after the academic year begins). The published pro‑rata schedule is used to calculate fees for late enrolment and for partial months; students starting within a month will be asked to pay for the full month.

Boarding

- Boarding is not provided as a standard full‑time option; the International School of Brussels operates as a day school for its student population. (Overnight/boarding arrangements may be referenced only in limited, event‑specific contexts such as camps where temporary overnight accommodation is arranged.)

60+ nationalities represented.