International school fees in Bangkok cover an unusually wide spectrum, from accessible mid-tier schools to some of the most expensive in Southeast Asia. For relocating families, understanding the full cost, not just the advertised tuition, is essential to budgeting accurately. This 2026 guide breaks down what international schools in Bangkok charge by age group in Thai baht, where the one-off and recurring extras hide, and how to keep the total bill under control.
What shapes the cost of schooling in Bangkok
Three things drive the fee. Curriculum matters, with British, IB and American schools priced differently from smaller or faith-based international schools. Age matters, as tuition climbs steadily toward the pre-university years. And prestige matters, because Bangkok's flagship campuses, with extensive sports and arts facilities, sit well above the mid-tier schools that still deliver a solid international education.
International school fees in Bangkok by age band
As a 2026 planning guide, expect annual tuition in roughly these ranges. Always confirm current figures with each school, as they are reviewed yearly:
- Early years and kindergarten: about THB 300,000 to THB 600,000 per year.
- Primary: about THB 400,000 to THB 800,000 per year.
- Secondary: about THB 600,000 to THB 1,000,000 per year.
- Pre-university (IB Diploma or A-Levels): about THB 700,000 to THB 1,200,000 per year.
Premium flagship schools reach or exceed the top of these ranges, while well-run mid-tier schools sit comfortably below.
The extra costs to budget for
Tuition is only part of the picture. Plan for these from the outset:
- Application fee: typically THB 5,000 to THB 25,000, usually non-refundable.
- Enrolment or placement fee: a significant one-off charge on acceptance, sometimes THB 50,000 to THB 200,000 or more at premium schools.
- Refundable deposit: often equal to one term of fees.
- Building or facilities levy: an annual contribution at many schools.
- Extras: school bus, lunches, uniform, devices, exam fees and trips.
Always ask each school for an all-in annual figure for your child's specific year group rather than relying on headline tuition.
Leading international schools in Bangkok and their positioning
The schools below show the range available across the city. Confirm current fees directly when you shortlist.
Wycombe Abbey International School Bangkok
A British-heritage school offering a premium English-curriculum education with strong academic ambition. See Wycombe Abbey International School Bangkok on ISchoolAdvisor.
KIS International School
An established IB World School offering the full continuum, well regarded for its community and central location. View KIS International School.
The British School of Bangkok
A British-curriculum school delivering an English-medium pathway for a multinational student body. View The British School of Bangkok.
OISCA International School
An international school offering an English-medium education with a values-led approach, often more affordable than the flagship campuses. See OISCA International School.
How to manage the cost
Clarify your relocation package. Many postings to Bangkok include an education allowance, so confirm exactly what is covered before choosing a school.
Consider mid-tier schools. Several deliver strong outcomes at a fraction of flagship fees, which matters if you are paying privately.
Ask about sibling discounts. These can meaningfully reduce the total for families with more than one child.
Check the payment schedule. Termly billing eases cash flow, and some schools offer a small discount for paying a year in advance.
To compare schools, fees and reviews in one place, browse the ranking of the best international schools in Bangkok on ISchoolAdvisor.
Frequently asked questions
How much do international schools in Bangkok cost per year?
Annual tuition ranges from about THB 300,000 in the early years to around THB 1,200,000 at pre-university level at premium schools, before extras such as enrolment fees, deposits, levies and transport. Mid-tier schools sit toward the lower end.
Are there large one-off fees on top of tuition?
Yes. Most Bangkok international schools charge a non-refundable application fee and a one-off enrolment or placement fee, which can be substantial at premium schools, plus a refundable deposit equal to about one term.
Can Thai citizens attend international schools in Bangkok?
Yes. Thailand allows local children to enrol in international schools, so the student body is a mix of Thai and expat families, which is part of why Bangkok's international sector is so large and varied.