The International School of Samui is a UK / IGCSE school in Koh Samui, Thailand. Founded in 2007. It serves 250 students for students aged 2–16. Annual tuition ranges from $12,167 to $17,320 USD.
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Location & Getting There
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Key Details
Key facts
Fees & the true cost of attendance
Published fees
$ 12,167–$ 17,320 per year.
Budget beyond the sticker price. Assume the real annual spend is 5–15% higher than the headline fee. Hidden costs typically include: registration fee, acceptance deposit (usually one term's fees, refundable at the end of schooling), uniform + sports kit, trips and expeditions, individual music tuition, exam entry fees, travel to/from home.
Ask the Bursar for a sample "all-in" first-year invoice before committing.
About
The International School of Samui (ISS) is a co-educational day school on Koh Samui, Thailand, educating around 300 students aged 3 to 18 from over 35 countries. Founded in 2007, it follows the British National Curriculum through Cambridge IGCSE and A Level qualifications, with strong STEM and sports programmes supported by modern facilities including science labs, a computing classroom, and a swimming pool. Distinctive offerings include the Duke of Edinburgh Awards, a Marine Conservation Programme, and a school organic farm.
School data verified by NanaSays. Last updated: April 2026.
Why Families Choose
ISS offers the Duke of Edinburgh Awards scheme, a Marine Conservation Programme, and a school organic farm providing experiential learning and leadership opportunities. The school serves a diverse student body of 300 pupils from 35+ countries on Koh Samui, combining the British National Curriculum with Cambridge qualifications. Strong STEM facilities include 3D printers and Lego Robotics alongside a swimming pool and sports hall.
Fees & Financials
| Grade / Year | Annual Fee |
|---|---|
| Early Years | THB 434,526~$ 11,905 |
| Year 3 - Year 6 | THB 534,992~$ 14,657 |
| Year 7 - Year 9 | THB 573,922~$ 15,724 |
| Year 10 - Year 11 | THB 618,585~$ 16,948 |
| Year 12 - Year 13 | THB 618,585~$ 16,948 |
| Reception - Year 2 | THB 480,558~$ 13,166 |
Conversions to USD use exchange rates as of April 2026.
Original currency: THB 434,526 - 618,585. Application fee: $2,100.
Admissions Process
- 1Enquiry and school visit — contact admissions to arrange a campus tour or virtual meeting. 2. Meeting with Head of School in person or online to discuss the child's needs. 3. Admissions testing (Years 3–11) — NGRT (English) and CAT (Cognitive Ability Test) completed at home or on-site. 4. Documentation and payment — submit required documents and pay joining fee, security deposit, and first term's tuition. 5. Visa support arranged if applicable.
Admissions Details
ISS operates a waitlist system via an optional Reservation Fee. Parents may pay this fee to secure a higher position on the class waiting list. If the school cannot offer a place within eight weeks of the expected enrolment date, the Reservation Fee is refundable.
School Day
Early Years: 8:30 AM to 2:50 PM. Primary School: 8:30 AM to 3:00 PM. Senior School: 8:20 AM to 3:00 PM. After-school activities run from 3:00 PM to 4:00 PM, Monday through Thursday.
Student Life
Uniform is mandatory from Reception upwards. Boys wear a blue ISS shirt with grey shorts; girls wear a blue ISS blouse with a grey skirt or shorts. Shoes must be black with no logos. PE kit is a white ISS shirt with blue/black shorts. Hats are encouraged outdoors. Hair colouring is discouraged; coloured sprays are allowed only on special occasions. Year 12–13 students may purchase uniform externally.
Facilities & Programmes
Wellbeing & Safety
SEL and mental wellbeing are addressed within the PSHE curriculum. Year 5 and Year 6 students learn about sleep, physical activity, hobbies, social connections, and lifestyle habits supporting mental health. Year 10 students explore emotional triggers, resilience-building, and recognising signs of stress or distress. No separate counselling services or dedicated wellbeing staff are publicly mentioned.
ISS has a formal safeguarding framework with annual child protection training for all staff. A Designated Safeguarding Lead and two deputies are employed, with their contact details displayed around campus. Safer Recruitment practices are followed for all hiring. A formal child protection policy outlines reporting procedures and expected conduct.
Student Demographics
School Background
Founded in 2007 by Jeremy and Victoria Lees. In 2022, day-to-day running and Executive Leadership was handed over to Stephen Andrews, who sits on the Executive Board.