Harrow International School Bangkok vs BASIS International School Bangkok
Side by side from CredRadar's verified dataset — every fee carries its source label. Last verified 2026-10-06.
Photo: Google MapsHarrow International School Bangkok
Don Mueang · Bangkok
Photo: Google MapsBASIS International School Bangkok
Bang Khun Thian (Rama 2) · Bangkok
In short
How they differ
- On published fees, BASIS International School Bangkok is the less expensive of the two: its range (฿565,000 – ฿1,038,000 / year) sits against ฿146,300 – ฿1,063,000 / year at Harrow International School Bangkok — a gap of ฿25,000 at the top of the range and ฿418,700 at entry level.
- Curriculum: Harrow International School Bangkok lists British, IGCSE, A-Level; BASIS International School Bangkok lists American (BASIS), AP from G9 (22 APs 2026/27). That difference — not the brand name — is what most affects transferability to your next school or university system.
- Only Harrow International School Bangkok offers boarding of the two (Yes). Boarding charges are additional to the tuition shown — see the boarding hub for published boarding rates.
- Over 13 years at today's fees, the midpoint totals are ฿7,860,450 at Harrow International School Bangkok and ฿10,419,500 at BASIS International School Bangkok — a difference of ฿2,559,050 before annual increases.
| Harrow International School Bangkok | BASIS International School Bangkok | |
|---|---|---|
| Location | Don Mueang · Bangkok · Bangkok Metropolitan | Bang Khun Thian (Rama 2) · Bangkok · Bangkok Metropolitan |
| Founded | 1998 | — |
| Grades / ages | 18mo–18 | 3–18 |
| Curriculum | British, IGCSE, A-Level | American (BASIS), AP from G9 (22 APs 2026/27) |
| Accreditation / notes | BSO Outstanding (Mar 2026, per Prestige) | College Board AP |
| Annual tuition | ฿146,300 – ฿1,063,000 / year [O] Official fees Full fees breakdown | ฿565,000 – ฿1,038,000 / year [O] Official fees Full fees breakdown |
| Est. 13 years | ฿1,901,900 – ฿13,819,000 at today's fees, before annual increases | ฿7,345,000 – ฿13,494,000 at today's fees, before annual increases |
| Fee history (recorded) | +14.5% on recorded points, 2019/20 → 2025/26 (7 school years recorded) Fee history | +14.4% on recorded points, 2020/21 → 2024/25 (5 school years recorded) Fee history |
| Boarding | Weekly boarding 456,700/yr; full boarding 571,100/yr (2026/27) | No |
| Nearest rail station | 11th Infantry Regiment (BTS Sukhumvit) · 3.5 km straight-line | Phasi Charoen (MRT Blue) · 5.3 km straight-line |
| Google rating | No live Google rating (Google removed K-12 reviews in Apr 2025) | No live Google rating (Google removed K-12 reviews in Apr 2025) |
| School website | Visit website → | Visit website → |
Fees are the published annual ranges in our dataset (checked 2026-10-06); one-off enrolment charges, deposits and transport are additional — each school's fees page shows the published wording in full. Enrolment/student numbers are not shown because neither school publishes a figure we could verify in this pass.
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