International School Fees in Bangkok: Full 2026 Cost Breakdown

Understanding International School Fees in Bangkok

Bangkok is one of Asia's most competitive international school markets, and its fee structure reflects that. Costs range from under THB 250,000 per year at value-tier schools to over THB 1,160,000 at the most expensive institutions. For British families accustomed to either state education or UK independent school pricing, both ends of this spectrum may be surprising.

The critical point — which many families discover too late — is that headline tuition is only part of the real cost. Bangkok's top schools charge substantial one-time entrance fees (THB 200,000–265,000 or more) simply to secure a place, before a single term of tuition is paid. Layered on top are transport, meals, uniforms, extracurricular activities, and external exam fees. The realistic total cost is typically 20–30% above the published tuition figure.

This guide sets out all fee components, structured by tier, to help families build an accurate budget before committing to a Bangkok relocation.

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Four Tiers of Bangkok International Schools

Tier 1: Value (THB 220,000–615,000 per year)

The value tier primarily includes full IB schools such as Wells International School, selected bilingual schools with international accreditation, and some smaller community schools. Wells, with campuses at On Nut, Thong Lo, and Bang Na, charges approximately THB 220,000–500,000 per year and offers the full IB continuum — a genuinely strong curriculum for the price point.

Srinakharinwirot University Prasarnmit is an unusual case: a Thai university-affiliated school that offers Cambridge IGCSE and A-Levels, with fees of approximately THB 218,000–333,000 — significantly below standard international school pricing for the same qualifications.

Value-tier schools typically have lower one-time entrance fees (THB 50,000–100,000) and may have shorter waiting lists than premium schools. The trade-off is smaller campuses, fewer resources, and less name recognition with UK university admissions offices, though accredited IB results carry weight regardless of school brand.

Tier 2: Mid-Range (THB 440,000–831,000 per year)

Mid-range schools include Ruamrudee International School (RIS), KIS International School, and Shrewsbury's City campus.

• Ruamrudee International School: American-based curriculum with IB DP option; Catholic-affiliated; approximately THB 538,400–831,000 (main and Ratchapruek campuses). A credible and more accessible American curriculum alternative to ISB.
• KIS International School: The only Bangkok school offering all four IB programmes (PYP, MYP, DP, CP). Fees approximately THB 440,100–944,600 per year. IB DP average approximately 35 points. Smaller community, central location (Huai Khwang).

Tier 3: Premium (THB 450,000–910,000 per year)

The premium tier includes Bangkok Patana School and Shrewsbury International School's Riverside campus — both respected, accredited British curriculum schools with strong track records.

Bangkok Patana (British NC → IGCSE → IB DP):

Year Group	Annual Tuition
Primary	THB 450,000–620,000
Secondary (IGCSE)	THB 620,000–780,000
IB Diploma	THB 750,000–800,000

Shrewsbury International (British NC → IGCSE → A-Levels):

• Secondary and sixth form: approximately THB 700,000–1,210,000 per year

Tier 4: Ultra-Premium (THB 880,000–1,162,000+ per year)

The ultra-premium tier — NIST International School, International School Bangkok (ISB), and Harrow International School Bangkok — represents the city's flagship institutions.

NIST International School (Full IB Continuum):

Year Group	Annual Tuition (2026-27)
K1–K2 (age 3–4)	THB 650,200
K3 (age 5)	THB 840,500
Grades 1–5	THB 889,200
Grades 6–8	THB 956,000
Grades 9–10	THB 1,038,900
Grades 11–12 (IB DP)	THB 1,132,800

International School Bangkok (ISB) (American curriculum + IB DP):

Year Group	Annual Tuition (2025-26)
Pre-K	THB 640,000
Elementary (Grades 1–5)	THB 985,000
Middle (Grades 6–8)	THB 1,104,000
High School (Grades 9–12)	THB 1,162,000

Harrow International School Bangkok (British NC → A-Levels):

Year Group	Annual Tuition (2026-27)
Nursery	THB 737,600
Reception	THB 757,600
Years 1–5	THB 880,300
Years 6–8	THB 961,900
Years 9–11	THB 1,040,000
Years 12–13 (A-Levels)	THB 1,063,000

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One-Time and Entrance Fees

These costs are frequently underestimated by families new to the Bangkok market. Entrance fees are paid upfront when a place is accepted and are separate from, and in addition to, the first term's tuition.

School	Application Fee	Entrance / Admission Fee	Deposit	Notes
Bangkok Patana	THB 4,000	THB 250,000 (1st child) / THB 200,000 (2nd+)	THB 50,000 (refundable)	Non-refundable entrance fee
NIST	THB 6,000	THB 265,000 Registration + THB 575,000 Campus Dev Fee	—	Campus Dev Fee refundable on departure; or annual THB 60,500
Harrow	THB 5,000	THB 225,000 non-refundable	THB 200,000 (day students)	Additional THB 225,000 Waiting-Pool Fee if you join the wait pool
ISB	THB 4,700	THB 260,000 (non-refundable)	—	—

The NIST Campus Development Fee of THB 575,000 warrants particular attention. It is refundable when your child leaves the school, but it represents a significant cash outlay on day one — in addition to the non-refundable registration fee.

At Harrow, the Waiting-Pool Fee of THB 225,000 is charged if you are offered a place but elect to defer your start. This is in addition to the standard admission fee. It signals the genuine demand pressure the school faces.

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Additional Annual Costs

Beyond tuition, families should budget for the following recurring costs:

Cost Item	Annual Range (THB)
School bus / transport	40,000–80,000
Lunch / canteen	20,000–40,000
Uniforms and materials (first year)	15,000–35,000
Extracurricular activities	20,000–60,000
External exam fees (IGCSE or IB)	30,000–70,000

Exam fees apply in IGCSE years (Years 10–11) and IB DP years (Grades 11–12). They are charged per subject and are set by Cambridge Assessment or the International Baccalaureate Organisation, not by the school.

Transport deserves separate consideration. Bangkok traffic is severe. Many school buses take 60–90 minutes from central Sukhumvit to Bang Na (Bangkok Patana). Families who live within 20–30 minutes of school substantially improve daily quality of life and reduce the transport budget. See our neighbourhoods guide for area-by-school mapping.

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GBP Conversion: What These Fees Mean for British Families

As of June 2026, the indicative exchange rate is approximately THB 45–46 per pound sterling. This is an indicative rate and can move materially over a multi-year schooling period. Always verify the current rate with your bank or currency specialist before budgeting.

At THB 45/£1, approximate annual tuition costs in GBP:

Tier	Annual Tuition Range (THB)	Approximate GBP Equivalent
Value	220,000–500,000	£4,900–£11,100
Mid-range	440,000–831,000	£9,800–£18,500
Premium	450,000–910,000	£10,000–£20,200
Ultra-premium	880,000–1,162,000	£19,600–£25,800

For context, UK independent school fees in 2025-26 average approximately £15,000–£20,000 per year for day pupils at mainstream schools and £45,000 or more for boarding at top schools. On this basis, Bangkok's ultra-premium tier is broadly comparable to mid-range UK independent day school pricing, with the added burden of one-time entrance fees that UK private schools do not typically charge.

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Planning a 10-Year School Budget

For a child entering primary at age 5 and completing IB DP at age 18 at a premium school such as Bangkok Patana, a rough total cost estimate is as follows:

Component	Estimate
Entrance fees (one-off)	THB 300,000–325,000
Tuition (13 years)	THB 6,500,000–8,000,000
Transport (13 years)	THB 520,000–1,040,000
Lunch (13 years)	THB 260,000–520,000
Exams (IGCSE + IB)	THB 120,000–200,000
Extracurricular (13 years)	THB 260,000–780,000
Estimated total	THB 7,960,000–10,865,000

At an ultra-premium school (NIST or Harrow), the total rises materially — potentially THB 12–16 million over a 13-year career before university costs.

These are planning estimates, not guaranteed figures. Schools typically raise tuition by 3–6% annually; the NIST 2026-27 fees quoted in this guide are approximately 3–5% above 2025-26 levels.

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Employer Education Allowances

Many international businesses operating in Thailand include education allowances in expat remuneration packages. These are most common in financial services, energy, professional services, and large multinationals, and can cover 50–100% of tuition for one or more children.

If you are relocating on an employer-sponsored package, confirm before signing:

• The cap per child per year
• Whether the allowance covers entrance fees and additional costs, or tuition only
• Whether the allowance is paid directly to the school or reimbursed
• What happens if the school increases fees above the allowance cap

Families without employer support should ensure school fees form a explicit line in their Bangkok relocation financial plan, given the substantial upfront costs involved.

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How Global Investments Can Help

Global Investments supports families planning international relocations, including helping them model the financial impact of education costs on their overall property and living budget in Bangkok. We can connect you with financial specialists who understand the Thai expat market and with property advisers in the right neighbourhoods for your chosen school. Contact our team to discuss how to structure your Bangkok move around your family's education priorities and financial plan.

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This guide is for general information only. School fees, accreditation status, and visa requirements change regularly. Always verify current information directly with schools and relevant Thai authorities.