ISS International School
International School in Singapore
Quick answer
ISS International School Singapore is one of Singapore's longest-established IB schools, with over four decades of operation, enrolling 200 students. The school is triple-accredited by IBO, CIS, and WASC, with reported highest IB scores reaching 43/45 and 94% IB Diploma pass rate. Annual tuition runs $20,000-$35,000 USD (true cost ~$30,360, +10% — Singapore's 83rd cost percentile). Best suited to internationally mobile families wanting smaller-community IB-focused education.
Key facts
- Curriculum: IB taught at ISS International School.
- Tuition: $20,000–$35,000/yr published in USD, US$ equivalent.
- Avg class size: 15 (max 20) Singapore international school · 200 students total.
- Ages: 4-18 school day starts at 8:00 a.m..
- Accreditations: IBO, CIS, WASC verified.
200
15 avg / 20 max
Rolling
IBO, CIS, WASC
About ISS International School
Within today's global education landscape, ISS International School stands as a beacon of educational innovation, providing a comprehensive and inclusive education that has made a real difference in students' lives for over four decades. Our unwavering commitment to "Educating to Make a Difference" is deeply embedded in the fabric of our institution.
| Item | Amount |
|---|---|
| Annual tuition (USD) | $20,000 – $35,000 |
| Annual tuition (USD) | SGD 27748-SGD 57356 |
| Fee year | 2025-2026 |
| True annual cost (with hidden fees)how we calculate | $30,360(+10%) |
| First-year total (with registration + deposit) | $32,860 |
| Cost position in Singapore | 83th percentile(premium tier) |
Hidden costs & fee notes
Full IB school. Registration and development levy additional. 9% GST on all fees (mandatory since 2024). Application fee SGD 500-2,500. Capital/development levy SGD 2,000-10,000+ (one-time). Uniforms SGD 200-500. Bus SGD 2,000-5,000/year. ECA SGD 1,000-3,000/year.
IB
IB Diploma, High School Diploma, IB Certificate, International Schools Assessment (ISA), IBMYP e-Assessment
100% of our HSD students achieved a pass rate and university acceptance, 94% of our IB students obtained their IB diplomas, and which 88% of them obtained bilingual diplomas. The highest points were 43 over 45, and our average points were 34.2, with the global average at 30.6 points.
Language & Literature (Japanese, Korean, Chinese)
If a student presents with special learning needs, they are referred to an external specialist for a professional diagnosis. Based on that diagnosis, the Head of Learning Support and Wellness (or their designated proxy) consults with all relevant parties and determines the level of support the student needs, from 1 (basic support) to 5 (shadow teacher needed).
Yes
We offer English Language Supported (EAL) classes for students who are not fluent in English.
8:00 a.m. – 2:45 p.m.
Students can purchase their lunch from the school canteen. Alternatively, students can bring their own packed lunch. There is a fridge in every Primary School classroom, and students are welcome to use the fridge for food that requires refrigeration.
No
Recommended neighborhoods
Orchard, River Valley, Tanglin, Holland Village
Is ISS International School right for your family?
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At a Glance
Fee Position in Singapore
Mid-rangeSchool Profile
Class Size
Estimated Real Cost
Tuition + registration, transport, uniform, exams
Full IB school. Registration and development levy additional. 9% GST on all fees (mandatory since 2024). Application fee SGD 500-2,500. Capital/development levy SGD 2,000-10,000+ (one-time). Uniforms SGD 200-500. Bus SGD 2,000-5,000/year. ECA SGD 1,000-3,000/year.
Decide on this school — and four others
The $49 School Fit Brief covers ISS International School and 4 other top schools in Singapore — tuition + true cost, curriculum fit, admission timeline, and red flags. Builds your shortlist in 8 minutes vs the $1,500–3,500 (and 2–4 weeks) an education consultant charges for the same answer.
Nearby Schools (within 5km)
Disclaimer: School profiles are source-backed decision aids, not endorsements or official rankings. Tuition figures are approximate and may not include registration fees, uniforms, transport, or exam costs. Always verify directly with the school before applying. WhereNext is not affiliated with any school listed. This is not admissions consulting, legal advice, or official school placement guidance.