Securing a place at a top international school in Bangkok is more competitive every year. The city has attracted multinationals, embassies and regional HQs, pushing demand for British, IB and American programmes well beyond available seats at the most sought-after schools. This 2026 guide walks expat families through the admissions process, realistic timelines, required documents and practical tips to maximise your odds.
When to start the admissions process
Most Bangkok international schools open applications ten to fourteen months before the August start. For a Year 3 place in August 2026, families should submit by October or November 2025 at the latest. Popular schools keep waiting lists for specific year groups, so early registration is the single biggest lever you have. Mid-year entries (January intake) are possible but places are narrower and typically only at newer or smaller schools.
Documents you will need
Expect to provide two years of academic reports translated into English, standardised test scores if available, a copy of your child's passport and visa, immunisation records, a parent statement, and one or two reference letters from teachers. Some schools also request writing samples or short essays from older applicants. Keep certified copies ready, as originals are sometimes requested during interviews.
Language and entrance assessments
Most schools assess English proficiency for applicants aged seven and above, usually using the CAT4, MAP or a school-specific test. If your child is a non-native English speaker, expect an additional EAL screening. Schools that offer generous EAL support will accept students who need language reinforcement, while more selective schools expect near-native fluency by Year 4.
Leading schools to shortlist
KIS International School Reignwood Park
A green 80-rai IB continuum campus in the northern suburbs, with small classes and a strong focus on outdoor learning. An attractive option for families who want more space and nature without leaving Bangkok. View profile
Glory Singapore International School
A bilingual English-Mandarin programme following the Singaporean framework, popular with families balancing Asia and Europe. Strong mathematics and science track record. View profile
Interviews and family fit
Interviews are often the deciding factor once academic criteria are met. Schools look for engaged parents, realistic expectations and a child who will thrive in their community. Dress smartly, arrive ten minutes early, and have two or three informed questions ready about pastoral care, university guidance and extracurriculars.
Fees, deposits and payment schedules
Application fees sit between THB 5,000 and THB 8,000 and are non-refundable. Once a place is offered, expect a refundable deposit (one term's tuition) plus an enrolment levy. Annual tuition at Bangkok's top international schools ranges from THB 550,000 to THB 950,000 depending on age and curriculum. Review the fee schedule carefully, including building funds and end-of-year exam fees.
Practical admissions tips
Visit at least three schools before shortlisting. Ask to see a typical lesson, not a showcase assembly. Talk to current parents independently through expat groups. If your child has learning support needs, disclose them upfront; schools with robust learning support actually prefer transparency. Finally, keep a secondary option warm, because first-choice places can fall through when a corporate transfer shifts.
Explore more Bangkok options on the best schools in Bangkok ranking.
Frequently asked questions
How early should I apply to a Bangkok international school?
Ideally 10 to 14 months before the August start date. Earlier for competitive year groups such as Reception and Year 7.
Do Bangkok international schools require entrance exams?
Most do, typically CAT4, MAP or an in-house assessment in English and maths. Non-native English speakers may also take an EAL screening.
How much is the application fee?
Application fees range from THB 5,000 to THB 8,000 and are non-refundable. A refundable deposit equal to one term's tuition is paid on acceptance.