International schools in Bangkok offer high-quality education, but the true cost extends far beyond tuition. Parents must account for additional expenses such as application and enrollment fees, uniforms, transportation, field trips, meals, and extracurricular activities. These “hidden” costs can add 10–20% or more to the overall annual total.
Below is our analysis of 30 international schools across three fee tiers, premium, mid-range, and more affordable, based on our research conducted in October 2025.
Premium International Schools in Bangkok (Highest Fees)
Top-tier schools charge between ฿800,000 and ฿1.2 million per year. In addition to tuition, families face high one-time fees such as application, enrollment, and security deposits. Some schools collect a refundable deposit of several hundred thousand baht.
Top 10 Premium Schools and Key Fees
| School | Annual Tuition (approx.) | Application Fee | Enrolment Fee (one-time) |
| International School Bangkok (ISB) | ฿1,160,000 (High School) | ฿4,700 | ฿260,000 (registration) |
| Harrow International School Bangkok | ฿1,037,100 (Year 12–13) | ฿5,000 | ฿225,000 (admission) |
| NIST International School | ฿1,094,500 (Grade 12–13) | ฿6,000 | ฿265,000 (registration) + ฿575,000 refundable deposit |
| Shrewsbury International School (Riverside) | ฿1,208,400 (Year 12) | ฿5,000 | ฿225,000 (Place Fee) + ฿225,000 refundable deposit |
| Bangkok Patana School | ฿840,000 (Year 13 IB) | ฿4,000 | ฿250,000 (entrance fee) + ฿50,000 deposit |
| Wellington College International School Bangkok | ฿1,198,200 (Year 12) | ฿6,000 | ฿225,000 (enrolment) + ฿175,000 deposit |
| Brighton College Bangkok | ฿1,021,800 (Sixth Form) | ฿5,000 | ฿200,000 (admission) + ฿150,000 deposit |
| Denla British School (DBS) | ฿1,009,200 (A-Levels) | ฿5,000 | ฿220,000 (admission) + ฿150,000 deposit |
| BASIS International School Bangkok | ฿998,000 (Grade 9–12) | ฿5,000 | ฿250,000 (registration) + ฿100,000 deposit |
| KIS International School (Reignwood Park) | ฿997,600 (Grade 11–12) | ฿6,000 | ฿260,000 (registration) + ฿45,000 annual development fee |
Additional costs:
Uniforms (฿3,000–฿6,000 per set), bus services (฿108,000–฿172,800 per year), lunches (~฿30,000–฿40,000 per year), and compulsory field trips. Premium schools also charge extra for exam fees, activities, and insurance.
Key insight:
Even at Bangkok’s most expensive schools, parents still pay separately for almost everything beyond classroom instruction.
Mid-Range International Schools (Moderate Fees)
Mid-tier schools charge roughly ฿500,000–฿800,000 per year, with lower one-time fees. Application fees average ฿3,000–฿6,500, and enrolment fees typically range from ฿50,000–฿150,000. Some use annual capital fees instead of large upfront charges.
10 Mid-Range Schools and Key Fees
| School | Annual Tuition (approx.) | Application Fee | Enrolment Fee (one-time) |
| XCL American School of Bangkok (ASB) | ฿808,630 (High School) | ฿5,000 | ฿150,000 (first child) |
| Didyasarin Prep International (D-PREP) | ฿677,950 (High School) | ฿3,000 | ฿150,000 (registration) |
| St. Andrews Int’l (Sukhumvit 71) | ฿800,400 (Year 10) / ฿849,000 (IB) | ฿6,500 | ฿90,000 (one-time) |
| Wells International School | ฿600,000 (IB Diploma) | ฿5,000 (est.) | ฿100,000 (est.) |
| Ascot International School | ฿572,000 (Year 12–13) | ฿4,000 | ฿100,000 per child |
| St. Stephen’s International School | ฿564,000 (Year 13 IB) | ฿5,000 (est.) | ฿50,000 (est.) |
| Anglo Singapore International School | ฿713,000 (Year 12) | ฿5,000 (est.) | ฿25,000 (per child) |
| Regent’s International School Bangkok | ฿759,000 (Year 12) | ฿5,000 (est.) | ฿30,000–50,000 (family) |
| Concordian International School Bangkok | ฿963,400 (Grade 12) | ฿4,000 | ฿250,000 (registration) |
| Bangkok Prep International School | ฿1,000,000 (Year 13) | ฿5,000 (est.) | ฿120,000 (placement) |
Extra costs:
Uniforms (~฿5,000 per child), bus fees (฿50,000–฿120,000 per year), and lunches (฿30,000–฿40,000 per year). Schools such as Ascot also charge for residential trips (฿11,000–฿25,000 depending on year group).
Key insight:
While tuition is lower than at premium schools, extras remain significant. A family using full services may spend nearly as much overall.
Lower-Cost “Affordable” International Schools
At the lower end, international schools in Bangkok charge ฿150,000–฿500,000 per year. These schools prioritise academics over luxury and often appeal to bilingual or local families seeking an international curriculum at a reasonable cost.
10 Lower-Cost Schools and Key Fees
| School | Annual Tuition (approx.) | Application Fee | Enrolment Fee / Deposit |
| Trinity International School | ฿154,000–220,000 (K–12) | ฿3,600 | ฿70,000 (one-time) |
| Ekamai International School | ฿120,000–140,000 (K–12) | ฿5,000 (est.) | ฿150,000 (registration) |
| Bangkok Christian International School | ฿134,000–136,000 (K–12) | ฿5,000 (est.) | ฿50,000 (enrolment) |
| Glory International School | ฿250,000–430,000 (Nursery–G12) | ฿5,000 (est.) | ฿30,000 (enrolment) |
| NIVA American International School | ฿350,000–520,000 (K–12) | ฿5,000 (est.) | ฿20,000 (enrolment) |
| Modern International School | ฿180,000–360,000 (Nur–Y13) | ฿3,000–5,000 | ฿80,000 (admission) |
| St. Andrews Samakee (Primary) | ฿250,000–500,000 (Pre–Y6) | ฿4,000 | ฿55,000 (one-time) |
| Thai Sikh International School | ฿150,000–300,000 (Nur–G12) | ฿5,000 (est.) | ฿50,000 (enrolment) |
| Kevalee International School | ฿80,000–100,,000 (K–12) | ฿4,000 (est.) | ฿50,000 (enrolment) |
| Wells International School (On Nut) | ฿300,000–600,000 (Nur–G12) | ฿5,000 (est.) | ฿50,000 (enrolment) |
Additional expenses:
Uniforms, transport (optional but extra), meal plans (~฿15,000–฿30,000 per year), extracurricular clubs, and small excursion fees. Some schools include textbooks or insurance within tuition, but most operate on a pay-as-you-go basis.
Key insight:
Affordable international schools are accessible, yet ancillary costs, such as uniforms, lunches, and activities, still accumulate and should be budgeted for.
Smart Budgeting for Parents
Every international school in Bangkok, regardless of price bracket, has its own fee structure. Here are practical considerations when comparing schools:
- Application and enrolment fees: Non-refundable; typically ฿3,000–฿6,000 to apply, plus an entry fee or capital levy.
- Annual charges: Some schools add yearly levies (e.g. ISB’s ฿22,000 annual fee).
- Uniforms and supplies: Plan several thousand baht per child each year.
- Transport: School bus fees can reach ฿150,000+ annually.
- Meals: Annual meal plans average ฿25,000–฿40,000.
- Trips and camps: Expect ฿3,000–฿25,000 for local or residential excursions.
- Activities and incidentals: Sports coaching, music lessons, graduation fees, and exam charges add to the total.
Key takeaway:
Depending on the school tier, extra costs may add 5–20% on top of tuition annually. Families should plan their budgets around the full cost of attendance, not just the tuition figure.
The True Cost of a World-Class Education
Choosing the right school means balancing educational quality with financial sustainability. Bangkok’s international schools offer diverse curricula, but even affordable options require planning for hidden extras. By understanding what’s included, parents can make confident, informed decisions that fit their family’s priorities.
For more details and up-to-date fee comparisons, visit us at School Finder Bangkok, for a comprehensive guide to international schooling options across the city.
