For expat families moving to Bangkok in 2026, international school fees are often the single largest line item in the annual budget. Tuition varies widely, the fee structure is layered, and the "sticker price" rarely matches the real all-in cost. This guide walks through what international school fees in Bangkok actually look like, including the lesser-known levies and the most competitive options.
How international school fees are structured in Bangkok
Most Bangkok international schools break their fee schedule into five components. Application and assessment fees are typically THB 3,000 to 7,000 and are non-refundable. A one-off enrolment or registration fee equal to 10 to 15 percent of annual tuition is charged on acceptance and is usually non-refundable. A refundable deposit of one term of tuition secures the place and is returned when the student leaves with notice. Annual tuition is billed termly, and additional levies cover transport, lunch, ECAs and technology.
When comparing offers, always ask for the full fee schedule in writing, including any capital or building fund contributions, which can add 3 to 10 percent on top of published tuition at newer or expanding schools.
Tuition ranges by tier
Premium tier
At the most established schools, annual tuition ranges from roughly THB 650,000 for early years up to THB 1,100,000 in senior school. Schools in this bracket include NIST International School, International School Bangkok (ISB) and Harrow.
Mid tier
Mid-tier international schools typically charge THB 350,000 to 750,000 per year, with strong British and IB curricula. This bracket is often the best value for families who want rigorous academics without premium-tier capital fees.
Entry tier
Smaller or newer international schools can start as low as THB 200,000 in early years and THB 450,000 in senior school, particularly for IGCSE pathways.
Top schools by fee profile
NIST International School
NIST International School offers the full IB continuum (PYP, MYP, DP) and is widely regarded as one of the top IB schools in Southeast Asia. Fees sit at the top of the market, with strong university outcomes that many families consider worth the premium.
International School Bangkok (ISB)
ISB delivers a US curriculum with Advanced Placement in the high school. It sits in the premium bracket and is particularly popular with American and multinational corporate families.
St Andrews International School
St Andrews International School teaches the English National Curriculum through to IGCSE and IB Diploma. Fees are mid-tier and the school has multiple campuses around Bangkok, which helps with location flexibility.
D-Prep International School
D-Prep International School offers a US curriculum with a project-based approach. It sits in the mid tier and often appeals to families who want a more progressive environment.
KIS International School Reignwood Park
KIS International School Reignwood Park is an IB continuum school with competitive fees, newer facilities, and a clear focus on environmental education.
Additional costs to budget for
Tuition is rarely the whole story. Expect to add the following:
- Enrolment fee: 10 to 15 percent of tuition, one-off and non-refundable.
- Refundable deposit: one term of tuition.
- Transport: THB 40,000 to 80,000 per year depending on distance.
- Lunch: THB 20,000 to 40,000 per year.
- Uniform, books and technology: THB 15,000 to 35,000 in the first year.
- ECAs and trips: THB 20,000 to 60,000 per year.
For realistic planning, assume the all-in cost is 20 to 30 percent above the published tuition.
Overseas student rates and tax implications
Thailand does not apply differential tuition rates for foreign students, so expats pay the same published fees as other international school families. However, many employers deduct school fees from taxable allowances, and some multinational companies reimburse fees directly to the school. Check whether your employer's reimbursement is grossed up for Thai withholding tax, as this can materially change your net out-of-pocket amount.
Compare fees across all Bangkok schools
For an up-to-date comparison of fees and curricula, see the best international schools in Bangkok ranking on International School Advisor.
Frequently asked questions
Do Bangkok international schools offer scholarships?
Several premium schools offer academic, music and sports scholarships from Year 7, typically covering 10 to 50 percent of tuition. Scholarships are competitive and require early application, usually 9 to 12 months before entry.
Are sibling discounts common in Bangkok?
Yes. Many schools offer 5 to 10 percent off tuition for second and subsequent siblings. Some also offer corporate rates for specific employers.
Can I negotiate international school fees in Bangkok?
The published fee is usually non-negotiable, but there is sometimes room to discuss enrolment fee instalments, deposit waivers for short stays and timing of capital contributions. Always ask in writing.