Location
Phra Khanong, On Nut and Prawet
Language of Instruction
English
Yearly Fees 2026/27
Year 1-6: 510,000 THB
From 292,500 (Nursery) to 612,000 (Year 10-13). Full fee table
Charter International School was founded by the Thienprasiddhi family, who also run the Plengprasiddhi Kindergarten schools in Thailand, giving Charter a connection to an established local education background even as a standalone international school. It follows the English National Curriculum.
One distinctive detail about Charter is that its building design was modeled directly on the founding family's own home, with the explicit intention of making the campus feel less institutional and more like an extension of home life for younger students specifically.
As a family-founded and family-run school rather than part of a larger international group or UK-affiliated network, Charter operates with more independence in how it shapes its specific culture and priorities compared to schools tied into networks like Nord Anglia or the various UK boarding school affiliates in Bangkok.
Families drawn to Charter are often specifically looking for that family-run, home-like atmosphere rather than the scale and brand recognition of a larger international network school, making it a genuinely different kind of option within Bangkok's British curriculum landscape.
Charter International School 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 |
|---|---|
| Nursery | 292,500 |
| KG-Reception | 447,000 |
| Year 1-6 | 510,000 |
| Year 7-9 | 582,000 |
| Year 10-13 | 612,000 |
One-time fees at entry
- Application fee2,000
- Registration or entrance fee100,000
- Refundable deposit10,000
Charged on top of tuition
- Place guarantee depositCompulsory25,000 / yr
Included in tuition
Lunch, Snacks, English language support, After-school activities
Not included
Uniform, Textbooks
Worth knowing: Unusually inclusive: tuition covers lunch, snacks, English language support, learning support and after-school activities. Enrolment can be paid as 100,000 per child or 150,000 per family. 5% discount for full-year prepayment.
Source: Charter International School fee schedule. Fees change every year, so confirm with the school before you budget. What international school really costs in Bangkok