How Much Do International Schools in Thailand Cost? (2025–2026 fees guide)

The short answer: the fee range in 2025–2026

As of 2025–2026, the top premium international schools in Bangkok charge roughly ฿700,000 to ฿1,200,000+ a year for the upper year levels. The highest published fees include Wellington College International Bangkok at about ฿1,198,200 a year and International School Bangkok (ISB) at about ฿1,128,000. Established British schools sit a little below the very top — for example, Shrewsbury's primary fees are roughly ฿700,000–฿850,000 and Bromsgrove's primary fees roughly ฿650,000–฿800,000, with secondary higher.

Mid-tier and newer international schools are often cheaper, in the region of ฿300,000–฿600,000 a year, and there are more affordable international and bilingual schools below that. All of these figures are approximate, change every year and vary by school and year level, so treat them as a planning guide and confirm the current fees with each school.

Tuition by year level

Tuition is not a flat number — it rises steeply as your child moves up the school. Early years and lower primary are the cheapest entry point, primary sits in the middle, and secondary is higher again.

The most expensive years are the final examination years — the IB Diploma (DP) or A-level years — where fees at premium schools push toward the top of the range. When you budget, plan for the highest years, not today's fee, because the cost climbs with almost every year level.

The costs beyond tuition

The headline tuition is only part of the picture. Budget well above it for the following, which are typical as of 2025–2026 and vary by school:

• One-off registration / enrolment fee: about ฿50,000–฿200,000+ when your child first joins.
• Deposits: a refundable place or facility deposit, and sometimes a non-refundable acceptance deposit.
• EAL / English or learning support: often ฿80,000–฿200,000+ a year while your child needs extra English support.
• External exam fees: IGCSE, IB or A-level entry fees of roughly ฿80,000–฿200,000+ per session in the exam years.
• Uniforms, school buses, lunches, trips and technology (a laptop or tablet), which add up across the year.
• Capital or building levies charged by some schools on top of tuition.

Budget vs premium tiers

Broadly, international schools in Thailand fall into tiers. Premium schools — the long-established names and the international campuses of famous British schools — charge roughly ฿700,000–฿1,200,000+ a year at the top years and offer the deepest facilities, teaching staff and university-counselling support.

Mid-tier and newer schools, often ฿300,000–฿600,000 a year, can offer the same curriculum (British, American or IB) at a lower price, sometimes with a smaller campus or a shorter track record. Below that sit more affordable international and bilingual schools. A higher fee does not automatically mean a better fit for your child — visit, compare the curriculum and university destinations, and confirm current fees before you decide.

How the curriculum shapes cost and route

The curriculum sets both the fee and the qualification your child leaves with. British schools run toward IGCSE and then A-levels; American schools offer a high-school diploma with Advanced Placement (AP); IB schools run the Primary Years, Middle Years and Diploma Programmes (PYP, MYP, DP).

All three are taught in English and all three are recognised by international universities, but the timing and number of external exams differ, which affects the cost in the final years. Choose the route that suits your child's strengths and target universities, then budget for that route's exam years.

The English requirement most parents underestimate

International schools teach entirely in English, so English is the gate — not an afterthought. Entry to the upper years usually requires a proven level of English, and schools budget EAL support for children who need to catch up, which is a real recurring cost.

The same gate appears again at the end: admission to international universities generally requires a recognised English test such as IELTS or TOEFL, and IELTS Academic is the most widely accepted. Building strong academic English early lowers EAL costs, protects upper-year entry and removes a common last-minute obstacle to university offers. Bilingual, exam-focused prep — for example engforedu.com, which offers IELTS and English practice in both Thai and English with AI-powered band scoring — is an affordable way to keep your child ahead of that requirement.

How to budget for the whole journey

The mistake is to budget for this year's tuition only. International schooling is a multi-year commitment where the fee rises every year and the extras are predictable if you plan for them.

Work out the total across the years your child will attend, add the one-off and annual extras, build in an annual increase, and keep a reserve for the expensive exam years. Then pressure-test it against a realistic view of your household income over that whole period.

Ways to reduce the cost (general)

There are legitimate ways to bring the cost down, though availability varies by school and none is guaranteed:

• Scholarships and bursaries: many schools offer academic, music, sport or means-tested awards — ask each school directly.
• Sibling discounts and fees-in-advance discounts offered by some schools.
• Choosing a strong mid-tier or newer school running the same curriculum at a lower fee.
• Starting in a Thai or bilingual programme in the early years and moving to a full international programme later (weigh this against the English transition).
• Reducing avoidable extras — for example lowering EAL costs by building your child's English before they join.