Choosing a school is one of the biggest decisions a family makes when moving to Thailand, and it comes with real money attached: roughly ฿200,000 to ฿1,000,000+ a year (US$6,000-30,000+), depending on tier, city and curriculum. This guide breaks down what schools actually charge across Bangkok, Chiang Mai, Phuket, Pattaya and Hua Hin, compares the three main curricula honestly, and covers the costs and logistics that catch new families off guard: application timing, accreditation checks, the true cost beyond tuition, and the guardian-visa angle for parents.
Prices are quoted in Thai baht (THB) with US dollars in parentheses at ฿33 = US$1 (July 2026). Figures come from schools’ own published fee schedules where available; schools revise fees annually, so treat every number here as a planning range and confirm directly with the school before you commit.
Fee tiers and curricula at a glance
| Tier | Example schools | Annual tuition range | Typical class size | Where |
|---|---|---|---|---|
| Top-tier British/American/IB | Bangkok Patana, Harrow Bangkok, NIST, ISB, BISP, UWC Thailand | ฿470,000-1,200,000+ | 18-22 | Bangkok, Phuket |
| Mid-tier international | Regents Pattaya, Hua Hin International School, established Chiang Mai schools | ฿160,000-830,000 | 20-25 | Chiang Mai, Pattaya, Hua Hin |
| Bilingual (dual Thai-English) | Amnuay Silpa, Sarasas Witaed, Concordian | ฿280,000-950,000 | 25-35 | Bangkok metro, nationwide |
Ranges compiled from school-published fee schedules and fee-tracking sites, current as of July 2026; exact figures vary by grade level within each school. ฿33 = US$1 (July 2026).
How much do top-tier schools cost in Bangkok and Phuket?
Bangkok’s top-tier British, American and IB schools run roughly ฿470,000 to ฿1,200,000+ a year, scaling up steeply with grade level. Bangkok Patana School, the city’s largest British curriculum school, lists tuition around ฿630,000-1,095,000 for the 2026/27 year depending on year group, plus a ฿250,000 entrance fee for a first child. Harrow International School Bangkok spans roughly ฿553,000 (Pre-Nursery) to ฿1,037,000 (Years 12-13), with a ฿225,000 non-refundable admission fee on top. On the American and IB side, NIST International School runs roughly ฿510,000-1,095,000 a year as a non-profit, community-owned IB World School, while International School Bangkok (ISB), one of the longest-running American curriculum schools in the region, sits at the premium end at roughly ฿659,000 (Pre-K) to ฿1,197,000 (Grades 9-12).
Phuket’s international school scene has grown fast alongside the island’s expat and long-stay population. British International School Phuket (BISP) charges roughly ฿470,000 (Nursery) to ฿936,000 (Years 9-13) in tuition, plus a refundable ฿150,000 bond and ฿95,000/year for transport if you need it, a realistic all-in secondary-year total lands around ฿800,000-950,000. UWC Thailand, the island’s IB-focused United World College campus, quotes an all-inclusive first-year cost of roughly ฿900,000-1,050,000 once the one-time capital levy is factored in, and, notably for a premium school, distributes significant financial aid across its global network. Both reflect Phuket’s boom as a serious alternative to Bangkok for international families, not just a beach posting.
Which curriculum should you choose: British, American or IB?
Answer first: all three lead to university worldwide, the real choice is about specialisation timing and where your child is likely to apply. The British system has students sit IGCSEs around age 16 in roughly 8-10 subjects, then narrow to 3-4 A-level subjects for the final two years, a structure that rewards a student who already has a direction and suits UK, Australian, Singaporean and Hong Kong university applications that read A-level grades directly. The American system keeps a broader subject load through Grade 12, layering in Advanced Placement (AP) courses for rigor and building a cumulative GPA, which maps naturally onto US and Canadian applications that weigh GPA, extracurriculars and standardised tests together rather than a narrow final-year exam. The IB Diploma, offered as an additional track at many top schools (NIST, UWC Thailand and others) rather than as a separate curriculum, requires six subjects spanning sciences, humanities, language and the arts plus an extended essay and a community-service component, widely regarded as the broadest and most globally portable of the three, at the cost of more sustained breadth than a student who wants to specialise early may want.
If your family expects to relocate again before graduation, IB’s consistent structure across countries reduces the risk of a curriculum mismatch mid-way through secondary school. If you already know your child is headed toward a UK or Commonwealth university in a specific field, British A-levels let them start specialising two years earlier than the alternatives.
What does Chiang Mai’s value tier look like?
Chiang Mai is the honest value alternative to Bangkok for the same curricula, with schools running roughly 15-30% below Bangkok’s leading schools for an equivalent year group, according to school-fee comparisons. Overall tuition across the city’s established schools spans roughly ฿160,000-820,000 a year, scaling from ฿280,000-410,000 for early years up to ฿620,000-820,000 for IGCSE and A-level or IB Diploma years at the top end. Chiang Mai International School, one of the city’s longest-running options, lists tuition from roughly ฿190,000-430,000 depending on year group, a genuinely accessible entry point if you’re weighing where in Thailand to base your family. Class sizes at Chiang Mai’s mid-tier schools tend to run slightly larger than Bangkok’s flagship campuses, and facilities are typically a step down from the largest Bangkok schools’ sports complexes and theatres, a fair trade for many families given the lower cost of living overall.
What do Pattaya and Hua Hin schools cost?
Pattaya and Hua Hin sit in the same mid-tier band as Chiang Mai, with a smaller total number of schools to choose from. Regents International School Pattaya, part of the Nord Anglia network, lists tuition from roughly ฿436,000 to ฿829,000 depending on grade level, plus a ฿7,500 application fee per child. Hua Hin International School runs roughly ฿350,000-712,000 a year, with a ฿4,000 application fee and ฿80,000 enrollment fee on top. Both towns suit families prioritising a beach-town lifestyle over Bangkok’s density, but with fewer schools in town, check current availability and waiting lists earlier than you would in Bangkok, since there’s less depth of options to fall back on if your first choice is full.
What does it actually cost beyond tuition?
Tuition is the headline number, but it isn’t the full bill. Budget for a one-time, non-refundable application fee (commonly ฿4,000-7,500 per child across the schools above), a one-time entrance, admission or capital-development fee that ranges from roughly ฿150,000 at a mid-tier school to ฿225,000-575,000 at a top Bangkok school (occasionally structured as partly refundable on departure, check the specific terms), and then recurring annual costs layered on top of tuition: uniforms, a school bus if you need one (BISP Phuket lists this separately at roughly ฿95,000/year), lunch or meal plans (NIST quotes roughly ฿25,000/year for younger students), and extracurricular activities or clubs that aren’t bundled into the base fee. Sibling discounts are standard across nearly every school in this guide, typically starting around 5% for a third child and rising to 15-25% or more for a fourth or fifth, so a large family’s effective per-child cost drops meaningfully compared to the sticker price for one child.
When should you apply, and how do waiting lists work?
Apply 6-12 months ahead for the most in-demand Bangkok and Phuket schools and grade levels; popular year groups at well-regarded campuses can carry waiting lists that stretch past a year, and virtually every school in this guide requires an assessment or interview, even for early-years applicants. Chiang Mai, Hua Hin and Pattaya schools generally have more mid-year availability given the smaller pool of families competing for places, but the safer move everywhere is to apply as soon as you have a target start date rather than waiting until you’ve landed and settled into a neighbourhood.
How do you check a school is properly accredited?
Check for accreditation from the Council of International Schools (CIS) or WASC (Western Association of Schools and Colleges), the two bodies most established Thailand international schools cite, and confirm membership in the International Schools Association of Thailand (ISAT), which represents its member schools to the Ministry of Education and the Office of the Private Education Commission and maintains a member search on its site. A legitimate school states its accreditation and exam-board affiliations (Cambridge, Edexcel, IB) clearly on its own admissions pages; treat a school that’s vague about either as a reason to ask more questions before paying a deposit.
Are bilingual schools a real alternative, or just cheaper?
At the better-established ones, bilingual schools are a genuine value alternative, not merely a discount version of an international school. Bangkok’s bilingual sector runs roughly ฿280,000-950,000 a year across three informal tiers: a value tier around ฿280,000-450,000 (schools like Sarasas Witaed, the largest bilingual group in the country with 20+ campuses), a mid tier around ฿450,000-700,000, and a premium tier around ฿700,000-950,000 anchored by schools like Concordian. Amnuay Silpa, founded in 1926 and widely regarded as the country’s leading bilingual school, runs a genuine dual Thai-UK curriculum from age two through IGCSE and A-levels.
The honest catch: quality and English-medium hours vary considerably between schools marketed as “bilingual.” Some run a true dual curriculum with a recognised exam board at the end; others are Thai-medium schools with an English Programme bolted on as a parallel track, typically priced 30-50% below a dedicated bilingual school. Ask specifically what share of instruction is in English, whether the school sits an internationally recognised exam (IGCSE, A-level), and where recent graduates went on to study, rather than assuming every school under the “bilingual” label delivers the same outcome.
Is homeschooling a legal option in Thailand?
For Thai citizens, yes. Thailand’s 2004 homeschool law and a Ministerial Regulation on the family’s right to provide basic education let Thai families register with the Office of the Basic Education Commission or their Provincial Education Office, submit a curriculum plan, and have their child assessed annually. For foreign nationals, the picture is less settled: Thailand’s formal homeschool registration system is built around Thai citizens, and most expat families who homeschool instead enrol their child with an accredited international online school or curriculum provider rather than attempting to register through the Thai system. This is a fast-moving, family-specific area of law. Verify your situation directly with the Ministry of Education, the Office of the Private Education Commission, or an education-focused visa agent, this guide gives orientation, not legal advice.
Can a parent get a visa through their child’s school enrollment?
Yes, via what’s commonly called the Guardian Visa, a Non-Immigrant O visa available to a parent or guardian of a child holding a Non-Immigrant ED (Education) visa at a recognised Thai school. It typically requires a ฿500,000 deposit in a Thai bank account as proof of financial stability, is usually issued as a single-entry visa valid for 90 days that you then extend once inside Thailand (the extension process generally opens around 45 days after entry, tied to the child’s ED visa validity), and does not permit the guardian to work. Usually only one parent per child can hold the visa, so families with a single child typically see one parent take the Guardian Visa while the other uses a different visa route. Immigration rules and office-by-office practice change; verify current requirements with Thai immigration or a licensed visa agent before applying, this is orientation, not immigration advice.
The honest downsides
International school in Thailand is a genuine financial commitment, not a bargain version of Western private school, once you add the entrance fee, uniforms, transport and activities to the tuition line, a family at a top Bangkok school can easily clear ฿1,000,000+ in year one. Waiting lists are real at the most in-demand schools and grade levels, so late applications risk starting the year at a second-choice school. Bilingual-school quality varies widely, and the label alone tells you little, verify the actual English-medium hours and exam pathway before enrolling. Guardian-visa and homeschooling rules shift, and this guide can only give you the shape of the current rules, not a guarantee they’ll be identical by the time you apply, always confirm with an official source before committing money or paperwork.
Where to next
If you’re still working out logistics, our moving to Thailand checklist and cost of living in Thailand guide cover the wider budget picture, and best places to live in Thailand can help you match a city to your school shortlist. If you’re weighing whether Thailand suits family life more broadly, Thailand with kids covers the day-to-day side of raising children here. And once you’re settled, browse Thailand events for family-friendly things happening near you.
Sources
- Bangkok Patana School fee announcement, 2026/27
- NIST International School tuition and fees
- Harrow International School Bangkok tuition and fees
- International School Bangkok (ISB) fees
- British International School Phuket (BISP) school fees
- UWC Thailand admissions fees
- International Schools Association of Thailand (ISAT)
- Regents International School Pattaya and Hua Hin International School published fee schedules (2025/26-2026/27)
- Reporting on Thailand’s 2004 homeschool law and Ministerial Regulation on the family’s right to basic education
- Reporting on Thailand’s Non-Immigrant O (Guardian) visa requirements tied to a child’s ED visa