BASIS International School Bangkok vs International School Bangkok (ISB)
Side by side from CredRadar's verified dataset — every fee carries its source label. Last verified 2026-10-06.
Photo: Google MapsBASIS International School Bangkok
Bang Khun Thian (Rama 2) · Bangkok
Photo: Google MapsInternational School Bangkok (ISB)
Nonthaburi, Pak Kret (Nichada Thani) · Nonthaburi
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 ฿659,000 – ฿1,197,000 / year at International School Bangkok (ISB) — a gap of ฿159,000 at the top of the range and ฿94,000 at entry level.
- Curriculum: BASIS International School Bangkok lists American (BASIS), AP from G9 (22 APs 2026/27); International School Bangkok (ISB) lists American + IB DP + AP. That difference — not the brand name — is what most affects transferability to your next school or university system.
- They are not in the same place: BASIS International School Bangkok is in Bangkok, International School Bangkok (ISB) in Nonthaburi — for most families that settles the commute question before fees do. Check both in the commute finder.
- Over 13 years at today's fees, the midpoint totals are ฿10,419,500 at BASIS International School Bangkok and ฿12,064,000 at International School Bangkok (ISB) — a difference of ฿1,644,500 before annual increases.
| BASIS International School Bangkok | International School Bangkok (ISB) | |
|---|---|---|
| Location | Bang Khun Thian (Rama 2) · Bangkok · Bangkok Metropolitan | Nonthaburi, Pak Kret (Nichada Thani) · Nonthaburi · Bangkok Metropolitan |
| Founded | — | 1951 |
| Grades / ages | 3–18 | 3–18 |
| Curriculum | American (BASIS), AP from G9 (22 APs 2026/27) | American + IB DP + AP |
| Accreditation / notes | College Board AP | WASC context |
| Annual tuition | ฿565,000 – ฿1,038,000 / year [O] Official fees Full fees breakdown | ฿659,000 – ฿1,197,000 / year [O] Official fees Full fees breakdown |
| Est. 13 years | ฿7,345,000 – ฿13,494,000 at today's fees, before annual increases | ฿8,567,000 – ฿15,561,000 at today's fees, before annual increases |
| Fee history (recorded) | +14.4% on recorded points, 2020/21 → 2024/25 (5 school years recorded) Fee history | +15.3% on recorded points, 2020/21 → 2024/25 (5 school years recorded) Fee history |
| Boarding | No | No |
| Nearest rail station | Phasi Charoen (MRT Blue) · 5.3 km straight-line | Nonthaburi Civic Center (MRT Purple) · 3.8 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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