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School Fees - 2026/27
We offer 3 different payment options as follows: 10 monthly Payments, 3 Termly Payments, or 1 Single Payment. Students must be enrolled for the full academic year to qualify for either the 10 Monthly Payment option or 1 Single Payment option. The Single Payment Option provides a 5% discount on the Annual School Fee.
School Fees include teacher tuition, all prescribed textbooks, teaching materials and resources, access to digital resources, lunch, and accident insurance (for accidents happening within school campus only).
Early Years
Annual fee
Term 1
Term 2
Term 3
Single Payment (5% disc)
10 month plan
456,252 THB
190,105 THB
152,084 THB
114,063 THB
433,440 THB
45,625 THB
Year 7 - Year 9
Annual fee
Term 1
Term 2
Term 3
Single Payment (5% disc)
10 month plan
602,618 THB
251,091 THB
200,873 THB
150,654 THB
572,487 THB
60,262 THB
Reception - Year 2
Annual fee
Term 1
Term 2
Term 3
Single Payment (5% disc)
10 month plan
504,586 THB
210,244 THB
168,195 THB
126,147 THB
479,357 THB
50,459 THB
Year 10 - Year 11
Annual fee
Term 1
Term 2
Term 3
Single Payment (5% disc)
10 month plan
649,514 THB
270,631 THB
216,505 THB
162,378 THB
617,039 THB
64,951 THB
Year 3 - Year 6
Annual fee
Term 1
Term 2
Term 3
Single Payment (5% disc)
10 month plan
561,742 THB
234,059 THB
187,247 THB
140,436 THB
533,655 THB
56,174 THB
Year 12 - Year 13*
Annual fee
Term 1
Term 2
Term 3
Single Payment (5% disc)
10 month plan
519,612 THB
216,505 THB
173,204 THB
129,903 THB
493,631 THB
51,961 THB
*Year 12 - 13: This fee includes a special discount of 20% (129,902 THB) for students joining Year 12 in Term 1 in 2026/2027. The full fee is normally 649,514 THB
Joining Fee: 75,000THB (non-refundable). This is payable upon the agreement of a place for your child and before they enter the school. THB 150,000 is the maximum amount payable per family. Children joining the Early Years will be deferred from paying the Joining Fee until they move into the Reception Class. A Joining Fee of THB 37,500 is payable for students joining for one term only.
Security Deposit: THB 75,000 (refundable, subject to terms and conditions). This acts as financial security for the school and is returned upon withdrawal of a student from the school, providing all fees have been cleared, and one full term’s notice has been given. The security bond for A-level (Sixth Form) is not refundable if a student withdraws from ISS before the completion of the courses they have enrolled in. No exceptions. Please refer to the Refund section for more details.
Please find the detailed information on school fees