Location
Nonthaburi
Ages
Ages 3 to 18
Language of Instruction
English
Yearly Fees 2026/27
Elementary KG-Grade 5: 1,015,000 THB
From 659,000 (Pre-Kindergarten) to 1,197,000 (High Grades 9-12). Full fee table
Founded
1951
ISB holds the distinction of being Thailand's first international school, opening in 1951 as the International Children's Center on the grounds of the US Embassy, serving an initial group of just 50 children from UN and embassy families. That history helps explain why the school still carries an unusually international, diplomatic-community feel even today.
The campus occupies roughly 37 acres inside Nichada Thani, a gated residential community in Nonthaburi built specifically around the school. Many ISB families choose to live inside or near Nichada Thani itself, since it removes the cross-town commute that affects families at more centrally located schools, at the cost of being further from downtown Bangkok on weekends.
Academically, ISB runs an American curriculum through Advanced Placement courses, with the IB Diploma Programme also available as an option in the final two years, giving families a choice between the two most internationally recognized university pathways. ISB was the first school in Thailand to offer the IB Diploma at all, alongside its American track.
With around 1,900 students, ISB is large enough to field a full IASAS athletics and arts program, and its extensive campus includes facilities that go well beyond a typical school day, more in line with a small American high school and college campus combined.
International School Bangkok (ISB) fees 2026/27
Annual tuition in Thai baht, read from the school's own fee schedule on 18 September 2026.
| Year group | THB per year |
|---|---|
| Pre-Kindergarten | 659,000 |
| Elementary KG-Grade 5 | 1,015,000 |
| Middle Grades 6-8 | 1,137,000 |
| High Grades 9-12 | 1,197,000 |
One-time fees at entry
- Application fee4,700
- Registration or entrance fee260,000
Charged on top of tuition
- Annual feeCompulsory22,000 / yr
- Life Centered Education programme980,000 / yr
- School bus111,300 to 178,000 / yr
Not included
Lunch, School bus
Worth knowing: Life Centered Education is charged on top of tuition, so a Grade 5 place with it is about 2,000,000 THB a year. Non-profit; 80-85% of tuition goes to salaries.
Source: International School Bangkok (ISB) fee schedule. Fees change every year, so confirm with the school before you budget. What international school really costs in Bangkok
International School Bangkok (ISB) term dates 2026/27
We have not confirmed this school's full 2026/27 calendar yet. The school year starts on 13 August 2026.
ISB runs an American semester calendar, so its breaks do not map onto the British half term pattern. The full calendar sits behind a viewer that needs opening in a browser. Only the 13 August start date is confirmed.
Source: Board approved first day of school, 2026/27. Calendars change, so check with the school before booking travel or camps. Compare with other schools