Australian International School vs Tanglin Trust School
🇸🇬 Singapore · Side-by-side comparison on verifiable public data.
Tanglin Trust School holds a public inspection verdict (BSO "Outstanding"), while Australian International School operates in a market with no public inspectorate — the former has a verifiable official quality anchor, the latter is judged on accreditation depth. One practical difference: Australian International School offers boarding while the other is day-only — decisive for families who need a residential option. Verify current fees against each school's own figures (see the table below).
Key Facts
| Australian International School | Tanglin Trust School | |
|---|---|---|
| Curriculum | Australian / IB / British | British / IB |
| Ages | 2 months–18 | 3–18 |
| Languages of instruction | English | English |
| Annual fees | SGD 43,030–53,518 | SGD 34,770–55,734 |
| Enrollment | 2,300 | 2,824 |
| Boarding | Yes | Day only |
| Inspection rating | — | BSO: Outstanding |
| Accreditations | CIS, WASC, NSW Government Education | CIS, COBIS, HMC, IAPS, FOBISIA, Cambridge International, Edexcel, BSO |
Strengths
- ✓Genuinely distinctive Southern Hemisphere (January–December) academic calendar — ideal for families moving on the Australian school cycle
- ✓Broad multi-pathway curriculum: Australian Curriculum + IB PYP + Cambridge IGCSE + a choice of IB Diploma or NSW HSC at senior level
- ✓Very wide age span, from infant care (2 months) through Year 12, on one campus
- ✓Multiple recognized accreditations: CIS, WASC, IB World School, Cambridge International, NSW Government Education
- ✓Large, established community (opened 1993; ~2,300 students; 50+ nationalities)
- ✓'Outstanding' rating in the 2025 BSO inspection — the only BSO-inspected school in Singapore, a verifiable third-party quality signal
- ✓Strong published 2025 results: provisional IB Diploma average 39.3, 100% IB pass rate, 63% A*/A at A-Level
- ✓Rare dual-pathway Sixth Form letting students choose A-Levels or the IB Diploma at 16
- ✓Century-long track record (founded 1925) and a large, diverse community (~2,824 students)
- ✓Broad accreditation and membership footprint (CIS, COBIS, HMC, IAPS, FOBISIA, Cambridge, Edexcel)
Trade-offs
- !High fees: secondary tuition reaches SGD 53,518/year (2026), among the more expensive bands in Singapore
- !For-profit ownership under Cognita
- !Large size (~2,300 students) may not suit families seeking a small setting
- !No independent regulatory inspection report is publicly available (external references are editorial, e.g. Good Schools Guide)
- !The blended HSC/IB/IGCSE model, while broad, can be complex for families to navigate
- !High fees: SGD 34,770–55,734 for 2025/26, plus a non-refundable SGD 1,000 application fee, SGD 4,500 enrolment fee, and SGD 4,500 capital levy
- !No EAL support — children not already fluent in English cannot be accommodated
- !Day school only; no boarding option
- !Exam fees (GCSE/IGCSE/A-Level/IB), personal-device costs, transport, meals and trips are extra
- !Established and oversubscribed — competitive admissions and waitlists are commonly reported (not quantified in public sources)
Best Fit For
- • Families relocating on the Australian/Southern Hemisphere school calendar who want continuity of term timing
- • Families wanting a single school covering infancy through to age 18
- • Students who may benefit from a choice between IB Diploma and the Australian HSC at senior level
- • Families seeking an established, well-accredited, large international school in central-north Singapore
- • Fluent-English-speaking families wanting a British curriculum with an IB option at Sixth Form
- • Academically ambitious students aiming for strong A-Level or IB Diploma outcomes
- • Families seeking a long-established, large, multi-national community
- • Families who can comfortably absorb premium Singapore international-school fees
University Placement
School-reported · not independently verified
School-reported, unverified: AIS states '100% university acceptance' with '99% securing a top-choice placement,' names destinations including Melbourne, Stanford, Cambridge and NUS, reports 15% of students achieving 40+ IB points, and over $2.67M in scholarships in 2024. These are not independently verified.
School-reported, unverified: Tanglin publishes 2025 examination outcomes (provisional IB Diploma average 39.3, 100% IB pass rate, 63% A*/A at A-Level) but no specific university-destination list was found in public sources.
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Frequently Asked Questions
Should I choose Australian International School or Tanglin Trust School?
Australian International School is best for: Families relocating on the Australian/Southern Hemisphere school calendar who want continuity of term timing. Tanglin Trust School is best for: Fluent-English-speaking families wanting a British curriculum with an IB option at Sixth Form. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between Australian International School and Tanglin Trust School?
Australian International School: SGD 43,030–53,518. Tanglin Trust School: SGD 34,770–55,734. Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do Australian International School and Tanglin Trust School offer?
Australian International School: Australian, IB, British. Tanglin Trust School: British, IB. Tanglin Trust School inspection: BSO "Outstanding".
Do Australian International School or Tanglin Trust School offer boarding?
Australian International School: offers boarding. Tanglin Trust School: day school only.
This comparison is BrightKey's independent assessment using verifiable public data only. University-placement figures are school-reported and not independently verified. BrightKey takes no payments from schools. Our method →