Ascot International School vs RBIS International School
Ascot International School and RBIS International School are both in Bangkok, about 15 km apart. Both schools offer Cambridge IGCSE programmes. Ascot International School also offers IB and Montessori, and RBIS International School also offers British, BTEC Qualification, Cambridge (Primary), Cambridge (Secondary) and Cambridge A Levels. Published annual fees are close, at THB 263,285 - 572,084 for Ascot International School and THB 264,000 - 570,000 for RBIS International School. Ascot International School takes pupils from 1 to 17, and RBIS International School from 2 to 18. Ascot International School is the larger school, with around 500 pupils to RBIS International School's 300. Typical class sizes are 18 at Ascot International School and 15 at RBIS International School.
British Curriculum, BTEC Qualification, Cambridge (Primary), Cambridge (Secondary), Cambridge IGCSE, Cambridge A Levels
Pupils
Pupils
500
Pupils
300
Typical class size
Typical class size
18
Typical class size
15
Instruction language
Instruction language
English
Instruction language
English
Opened
Opened
1995
Opened
1971
Bus service
Bus service
—
Bus service
Yes
Essentials
Essentials
Location
Location
Ascot International School is situated in the leafy Saphan Sung area of Bangkok, on Ramkhamhaeng 118 Alley.
The campus is accessible via major roads and is a short drive from Sukhumvit and Lat Phrao districts, offering a quieter, suburban setting with good transport links.
Location
RBIS is on Soi Rajavithi 2, Rajavithi Road, Samsennai, Phayathai district, Bangkok 10400, within a 10-minute walk of Victory Monument BTS Station and close to the Aree neighborhood. The area offers convenient public transport access and sits in a mature city suburb.
Stages
Stages
The school serves children aged 18 months to 18 years, with clearly defined stages: Early Years (18 mo–4 yrs), Primary (Years 1–6), Secondary (Years 7–11), and Sixth Form (Years 12–13).
Stages
RBIS serves students aged approximately 18 months to 18 years, structured as Early Years (up to age 5), Primary (ages 5–11, Key Stages 1–2), Secondary (11–14, Key Stage 3), and Sixth Form/Post‑16 (14–18, IGCSE and post‑16 pathways).
School type
School type
Ascot is a co-educational day school.
School type
RBIS is a co‑educational day school.
Pupil nationality mix
Pupil nationality mix
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Pupil nationality mix
—
Additional learning support
Additional learning support
The school offers dedicated EAL (English as an Additional Language) support across all levels, including in-class inclusion and out-of-class extraction. It also provides tailored programs and adaptive technologies to support students with disabilities or specific learning differences.
Additional learning support
RBIS offers Individualized Education Plans (IEPs), Behavior Support Plans (BSPs), a Nurture Group, and 1–2–1 intervention sessions for students with SEN - supported by teaching assistants and collaboration among SENCo, parents, and specialists.
Country affiliation
Country affiliation
Ascot does not have formal affiliation with any specific country.
Country affiliation
RBIS is affiliated with the British education system, following the English National Curriculum throughout its programmes.
Religious affiliation
Religious affiliation
The school has no religious affiliation.
Religious affiliation
RBIS does not have a religious affiliation.
School day structure
School day structure
Nursery–Reception sessions run from 08:00 to 14:30. Year 1–13 students attend from 07:40 to 15:00, with scheduled breaks and a lunch period mid-day.
School day structure
The specific daily timings for class start/end times, breaks, and transitions for Primary and Secondary sections are not detailed on the publicly available school website.
Bus service details
Bus service details
Ascot’s website does not mention a dedicated school bus or coach service.
Bus service details
RBIS provides a school bus service available upon request—details and routes are arranged directly through the school.
Fees
Fees
Fee details
Fee details
Initial Fees
* Application Fee: THB 4,000 (non-refundable) * Enrollment Fee: THB 100,000 per child or THB 180,000 per family (non-refundable) * General Deposit: * THB 5,000 (Pre-Nursery to Year 6) * THB 10,000 (Year 7 to Year 13) * Refundable upon withdrawal if no damage occurs.
Tuition Fees (Annual Total)
* Pre-Nursery: THB 263,285 * EY1: THB 319,138 * EY2–EY3: THB 369,724 * Year 1–2: THB 430,182 * Year 3–6: THB 488,158 * Year 7–9: THB 522,653 * Year 10–11: THB 553,545 * Year 12–13: THB 572,084
Tuition is payable in three terms. Examination fees for IGCSE (Year 11) and IBDP (Year 13) are invoiced separately.
Other Costs
* Meal Fees (Annual): * Pre-Nursery to EY3: THB 32,000 * Year 1–6: THB 35,000 * Year 7–13: THB 37,000
* Stationery & Resources (Annual): Varies by year, e.g., THB 2,000 for Early Years; THB 20,000 for Years 12–13
* Residential Trips: Required for Years 3–10; fees range from THB 11,000 to THB 25,000
* Fees are billed termly or annually. * A re-enrolment security fee of THB 50,000 per child is due mid-March and is credited against Term 1 fees. This becomes non-refundable if the child does not return.
Payment Methods
* Accepted at school: cash, cashier’s cheque, credit card (1.8% surcharge), or instalment plan. * Online and ATM banking: PromptPay and bank transfer options available * All bank charges must be paid by the parent. Confirmation of payment must be sent to the school.
Fee details
Application and Registration Fees
* Application and assessment fee: THB 5,000 (non-refundable) * Registration fee: THB 100,000 (non-refundable) * Capital levy (for short-term families): THB 40,000 per term for up to three terms, instead of the registration fee * Refundable deposit: THB 30,000, returned upon withdrawal with one full term’s notice and no outstanding balance
* Meals: Early Years THB 36,000 per year, Primary THB 39,000, Secondary THB 42,000. * Educational enhancement (ECAs/trips): Early Years THB 9,000, Primary THB 15,000, Secondary THB 18,000 per year. * Learning materials for Years 10–11: THB 10,000 per year. * SEN or English support (if required): THB 60,000–360,000 per year, depending on level. * Uniforms, external exams, and residential trips are billed separately.
Payment Terms Payments are accepted via bank transfer, cheque, or credit card (1.5% fee for card payments). A late payment fee of 1.5% per month applies. Advance payment plans (1–3 years) offer 5–10% discounts.
Diving deeper
Diving deeper
Boarding arrangements
Boarding arrangements
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Boarding arrangements
—
Uniform requirement
Uniform requirement
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Uniform requirement
—
Food options
Food options
—
Food options
—
House system
House system
—
House system
—
Governance and ownership
Governance and ownership
—
Governance and ownership
—
Academics
Academics
Curriculum details
Curriculum details
Ascot International School is an IB World School offering the IB Primary Years Programme (PYP) in Early Years and Primary (Pre-Nursery to Year 6). In Secondary (Years 7–11), the school delivers a blend of the IB Middle Years Programme (MYP) (currently in candidacy) and the Cambridge IGCSE curriculum. Students in Years 10 and 11 sit for IGCSE exams. In Years 12 and 13, students pursue the IB Diploma Programme (IBDP). Core subjects across the school include English, Mathematics, Sciences, Humanities, Arts, Languages, and Physical Education, with instruction in English. Additional support for English as an Additional Language (EAL) is provided where needed.
Curriculum details
RBIS follows the English National Curriculum from Early Years Foundation Stage (ages 18 months–5) through to Upper Secondary (ages 16–18) with distinct Key Stages 1–5 . At Key Stage 3 (Years 7–9), students study a broad range of subjects as a foundation before moving into the pre‑IGCSE Year 9 programme . In Key Stage 4 (Years 10–11), students take Cambridge IGCSE subjects across core and elective options, including English, Maths, Sciences, Humanities, Thai (for Thai nationals), and Mandarin for non-native speakers . Post‑16 (Years 12–13, Key Stage 5), students choose between Cambridge A‑Levels, BTEC qualifications, or an RBIS High School Diploma, with support for IELTS/SAT testing if required.
These varied pathways offer both academic and vocational routes leading to university entry in Thailand and abroad.
1. Book an Open House or school tour. Attending sessions - such as the one held 31 January 2025 - lets you walk the campus, meet teachers, and see the environment firsthand.
2. Submit an application. Once you've visited, complete the online form, attach required documents (e.g. birth certificate, passport) and pay the non-refundable THB 4,000 application fee.
3. Attend assessments and interviews. Pre-Nursery–Year 2 applicants have a parent interview and informal assessment; Years 3–6 take English and Maths tests plus an interview; Years 7–13 complete assessments and meet with the Head of Secondary.
4. Receive results and offer. Within 3–5 working days, the Admissions Team informs you of your outcome and issues an Offer of Place, including a fee invoice.
5. Confirm your child’s place. To secure enrolment, pay the enrolment fee by the deadline and complete tuition payment. At this stage, uniforms and resources can also be purchased.
Admissions
1. If available, book an Open House or school visit. During your visit, an admissions officer will give a tour, walk through facilities, and answer questions in person. 2. Complete the application form. You’ll need to submit child’s passport copy, academic transcripts from the past 12 months, a reference letter from the previous school, and a valid residence permit or visa. 3. Student assessment. RBIS administers an internal assessment, including English placement (to determine EAL support) and cognitive testing (e.g. CAT4 for gifted identification). 4. Application review. The admissions team, together with academic leadership, reviews all documents and assessment results before confirming an offer or waitlist status. 5. Enrollment and fee payment. Once an offer is accepted, payment of registration, tuition deposit or capital levy, and confirmation of tuition fees is arranged. Your child is then officially enrolled.
Scholarships
Scholarships
The school offers academic scholarships for entry into Years 4, 5, 10, and Year 12 (IB Diploma Programme) for the 2025–2026 academic year. Applicants must submit a THB 1,000 registration fee and sit an examination in late March. Results are communicated shortly afterward. The scholarships are awarded based on academic performance and are limited to those year groups.
Scholarships
RBIS offers Merit Scholarships for students aged 11–13 who demonstrate high achievement in academics, arts, music or sport. These awards range from 20% to 50% of tuition, and candidates must complete school-administered assessments and attend an interview. There are also Leadership Scholarships that may offer 20% up to full tuition to students showing leadership potential in various fields; both types require submission of an application form by the published deadline.
Waitlist
Waitlist
Ascot operates an open-entry policy and does not maintain a formal waitlist. Admission is offered to families whose children’s needs can be met by the school’s programmes and resources.
Waitlist
RBIS does operate a waitlist or placement pool: applicants may receive an offer or be placed on a waiting list depending on availability for a given year group. The site indicates that offers are conditional until assessments and places are confirmed. However, detailed public explanation of waitlist timelines or criteria is not provided.
