PBISS International School vs Windfield International School - Koh Samui
PBISS International School and Windfield International School - Koh Samui are both in Koh Samui, about 6 km apart. Both schools offer Cambridge (Primary), Cambridge IGCSE and Cambridge A Levels programmes. PBISS International School also offers Cambridge (Secondary) and EYFS, and Windfield International School - Koh Samui also offers British, Cambridge International AS Levels and French. Published annual fees are THB 244,030 - 449,230 at PBISS International School and THB 210,690 - 303,800 at Windfield International School - Koh Samui, which puts PBISS International School roughly 35% higher. Both take pupils from 2 to 18.
Cambridge (Primary), Cambridge (Secondary), Cambridge IGCSE, Cambridge A Levels, EYFS (Early years foundation stage)
Curriculum
British Curriculum, Cambridge (Primary), Cambridge IGCSE, Cambridge International AS Levels, Cambridge A Levels, French Curriculum
Pupils
Pupils
500
Pupils
—
Typical class size
Typical class size
19
Typical class size
—
Instruction language
Instruction language
English
Instruction language
English, French
Opened
Opened
2005
Opened
—
Bus service
Bus service
Yes
Bus service
No
Essentials
Essentials
Location
Location
PBISS is situated in Chaweng Noi, on the northeastern coast of Koh Samui, close to Bo Phut in Surat Thani province. The campus benefits from being accessible via local roads, and traffic—particularly during school drop‑off and pick‑up—can be congested at peak times, so planning travel accordingly is advised.
Location
67/7 Had Lamai Rd, Maret Koh Samui 84310, Surat Thani, Thailand. Located on Koh Samui in the Lamai/Maret area. The campus offers school bus transportation across the island.
Stages
Stages
The school serves students from early years through pre‑university levels, structured as: Foundation Stage (Nursery–FS2) Primary School (Years 1–6) Secondary School and Sixth Form (Years 7–13)
This structure allows progression from early childhood learning through Cambridge IGCSE and A‑Level studies
Stages
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School type
School type
PBISS is a co‑educational day school.
School type
—
Pupil nationality mix
Pupil nationality mix
—
Pupil nationality mix
—
Additional learning support
Additional learning support
The school does not reference a formal Special Educational Needs (SEN) programme, but offers English Language Support (ELS) for students identified as needing extra help with English.
Additional learning support
Counselling and dedicated learning support
Country affiliation
Country affiliation
While PBISS follows the Cambridge (British) curriculum, there is no formal affiliation with any specific country’s education authority beyond this curricular framework.
Country affiliation
France
Religious affiliation
Religious affiliation
PBISS is secular and has no religious affiliation.
Religious affiliation
—
School day structure
School day structure
Foundation Stage (Nursery–FS2): Students arrive by 8:30 for flag ceremony; classes end at 15:00; supervised in the playroom until 16:00 if not collected.
Years 1–6: Arrival before 8:30 for flag ceremony; lessons begin at 9:00 and end at 15:00; supervised in playground until 16:00.
Years 7–11: Same start time; lessons finish at around 16:00; students wait in the secondary canteen area for collection.
Years 12–13: Timetables are flexible, so finishing times vary depending on subjects and schedule.
School day structure
Monday–Friday: 08:00–16:30
Bus service details
Bus service details
PBISS offers a school bus service for Primary and Secondary students. Availability is limited, operating on a first‑come, first‑served basis.
Bus service details
School bus transportation across the island
Fees
Fees
Fee details
Fee details
Application Fee Pre-Nursery to FS2: No fee Years 1–2: THB 1,000 Years 3–6: THB 1,500 Years 7–13: THB 2,000
This fee is non-refundable and covers assessments, interviews, and processing.
Admissions Fee (One-time, non-refundable) Pre-Nursery to FS2: No fee Years 1–3: THB 42,500 Years 4–8: THB 47,500 Years 9–13: THB 55,000
Refundable Security Deposit: THB 30,000 per student Refundable upon withdrawal with one full term’s written notice, provided there are no outstanding fees.
Annual Tuition Fees Pre-Nursery/Nursery: THB 244,030 FS1–FS2: THB 248,470 Years 1–2: THB 269,710 Years 3–6: THB 300,190 Years 7–8: THB 349,000 Years 9–11: THB 391,340 Years 12–13: THB 449,230
Note: Tuition includes school books (except Years 9–13), some school trips, lunch and snacks, learning resources, and accident coverage on campus (up to THB 30,000 per incident).
English Language Support (ELS) For students requiring additional English support: Level 1: THB 10,000 per term Level 2: THB 20,000 per term Level 3: THB 35,000 per term
Additional Costs School uniform (purchased at the school office) Primary Extra-Curricular Activities (paid separately) School bus service (limited places; fees vary by route)
Discounts Sibling discount: 10% off second child, 20% off third and beyond (applies to mid-term enrollments)
Annual prepayment discount: 5% off tuition when all three terms are paid in advance
Refund Policy Tuition fees are generally non-refundable except under specific conditions.
Tuition fees by year group (annual and approximate per‑term)
The school operates a three‑term academic year; the per‑term figures below are the annual tuition divided across the three published terms.
- Kindergarten 1 (age 3): Annual tuition THB 200,690; Per term approx. THB 66,897. - Kindergarten 2 (age 4): Annual tuition THB 200,690; Per term approx. THB 66,897. - Kindergarten 3 / Early Primary (age 5): Annual tuition THB 219,740; Per term approx. THB 73,247. - Grade 1 (age 6): Annual tuition THB 219,740; Per term approx. THB 73,247. - Grade 2 – Grade 5 (ages 7–10): Annual tuition THB 233,440; Per term approx. THB 77,813. - Grade 6 – Grade 8 (ages 11–13): Annual tuition THB 273,600; Per term THB 91,200. - Grade 9 – Grade 12 (ages 14–17): Annual tuition THB 293,800; Per term approx. THB 97,933.
First‑year total for new entrants (example)
- For a child entering Kindergarten 1 in their first enrolled year the total due at enrolment (tuition + one‑time enrolment + annual administrative fee) is THB 200,690 (Enrolment THB 12,000 + Admin THB 10,000 + Tuition THB 178,690).
Billing schedule and payment terms
- The academic year is divided into three terms (Term 1, Term 2 and Term 3); invoices are issued on a term basis and per‑term amounts above were calculated by splitting the annual tuition across these three terms. - Published school fee information indicates that fees are expected to be paid at the start of each term (fees are required in the first week of a new school term as shown in the school's fee documentation).
Boarding fees
- Boarding is not applicable to the Koh Samui campus; the campus operates as a day school and provides on‑site services such as meals and bus transport rather than boarding accommodation.
Other costs and routinely charged extras
- The school provides and/or organizes: school uniforms, daily food (meals), school bus transportation, extracurricular activities and learning support; these items are additional categories of cost though specific unit prices for uniforms, bus routes, meals or clubs are not published in the public fee schedule. - Typical additional items that families should expect to budget for (where applicable): school uniform purchases, textbooks and workbooks, optional extracurricular or after‑school activity fees, examination fees for external qualifications, school trip charges, and any targeted learning‑support fees. (No detailed per‑item amounts were published for 2025/26.)
Sibling discount
- A sibling discount is offered: 5% reduction for the second child and 10% reduction for the third child enrolled.
Refund information
- Public fee documents reviewed do not include a detailed, line‑by‑line refund policy for 2025/26; historical fee documentation and published notes indicate fees are due at the start of each term but do not specify standard refund calculations or timelines for that academic year.
Fee payment options
- The school's public pages list contact and admissions procedures but do not publish a definitive list of accepted payment methods (for example: specific bank account details, online payment portals, or card acceptance rules are not shown on the publicly posted fee pages reviewed). Families are typically required to follow the invoicing instructions provided by the school finance office.
Summary of the most important figures and references (for quick reading):
- One‑off enrolment fee: THB 12,000. - Administrative fee (annual): THB 10,000. - Representative annual tuition by stage: THB 200,690 (early years) up to THB 293,800 (upper secondary); see the full grade breakdown above.
Brief note on availability of public details (what I checked and what was not published):
- The school publishes a three‑term calendar and the annual tuition figures above; however, detailed line‑item prices for uniforms, bus routes, meals, explicit refund terms and the school's accepted payment methods were not published on the public fee pages and fee documents available for 2025/26. The grade‑by‑grade annual tuition and the single‑year enrolment and administrative fees above are taken from the school fee schedule published for 2025/26.
Diving deeper
Diving deeper
Boarding arrangements
Boarding arrangements
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Boarding arrangements
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Uniform requirement
Uniform requirement
—
Uniform requirement
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Food options
Food options
—
Food options
—
House system
House system
—
House system
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Governance and ownership
Governance and ownership
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Governance and ownership
—
Academics
Academics
Curriculum details
Curriculum details
PBISS bases its curriculum on Cambridge International Standards, tailored with a STEM+ integration across all levels to support learning in science, technology, engineering, and mathematics alongside core disciplines. In the Primary School (ages 5–11), the Cambridge x STEM+ curriculum develops skills in English, Mathematics, Science, and beyond with specific learning objectives for each year. In the final four years, the Secondary stages, students follow Cambridge IGCSE and International A‑Level courses. Throughout all stages, lessons include core subjects such as English, mathematics, science, and humanities alongside creative subjects like music, design, art, and drama. This structure offers a coherent progression from early years through to pre-university qualifications, grounded in Cambridge frameworks and enriched by hands-on STEM components.
Curriculum details
Windfield Koh Samui provides dual curricula: French and British (Cambridge). It is an AEFE member and is certified by Cambridge and Oxford, offering internationally recognised diplomas. The school maintains small class sizes to provide personalised attention.
Student teacher ratio
Student teacher ratio
—
Student teacher ratio
Small class sizes.
Exam results
Exam results
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Exam results
—
Higher education progression
Higher education progression
—
Higher education progression
—
Gifted and talented
Gifted and talented
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Gifted and talented
Scholarships are available for students excelling in sports, music, arts, and academics.
1. Submit Application & Documents Parents begin by submitting an online application via the Apply Now page, along with required documents like birth certificate, previous school reports, and identification.
2. Assessment & Offers While the site does not detail formal testing, the Admissions Procedure Policy implies that, once all documentation and fees are received, the school proceeds with enrollment and issues an offer for confirmed placement.
3. Confirm Placement & Pay Fees To secure the place, parents must make the required payments (application, admissions fee, and security deposit) and formally accept the offer as guided through the application process.
4. Enrollment Finalised Upon completion of the above, the student’s enrollment is finalised, and a start date is confirmed by the school.
Admissions
1. Join the British Section at Koh Samui by completing the online application form. The form begins the child's educational journey by collecting essential applicant information. It requests the child's name, date of birth, gender, and the year group requested. Language details are collected, including the current English level and other languages spoken; Thai nationals in Year 3 to Year 6 are required to select Thai as one option, and Thai nationals in Year 7 to Year 11 must select Thai as one option and may choose an additional language. 2. Provide PARENT/GUARDIAN INFORMATION. The form requires details for each parent/guardian including name, nationality, occupation, home address in Koh Samui, and contact information such as telephone and email. It asks for marital status and to indicate which parent or guardian the information refers to. 3. GENERAL / PERSONAL MEDICAL INFORMATION. The form asks whether the child takes any regular medication and whether there are health limitations. It asks about food allergies and whether the child has been assessed by an Educational Psychologist or had other educational support assessments; provide details if applicable. 4. ADDITIONAL EMERGENCY CONTACT. An additional emergency contact is required, including name, relationship to the child, email, and mobile. 5. EDUCATION HISTORY. The form collects current curriculum, years of attendance at the last two schools, the country, principal/head's name and email, and reasons for leaving. It asks whether a school report is attached. 6. Required Documents. The following documents are required (scanned copies are acceptable): immunisation card, photocopy of passport, immunisation record card, copies of last two years' school reports, and two passport photos. Upload required documents. 7. PARENT'S CONSENT FOR WEB AND PRINT PUBLICATION OF WORK AND PHOTOGRAPHS. The form includes a consent to publish the child's work and photographs online or in print. 8. HOW DID YOU HEAR ABOUT WINDFIELD INTERNATIONAL SCHOOL SAMUI? The form asks how the family heard about Windfield and provides options such as family/friend recommendation, excellence scholarship advertisement, staff referral, Windfield website, social media, billboard, school event. 9. SIGNATURES. The form requires signatures of Father/Guardian and Mother/Guardian, prints their names, and CAPTCHA.
Scholarships
Scholarships
PBISS offers scholarships to current students who demonstrate outstanding records, including academic performance and other achievements. Details on the application process, eligibility criteria, or the scope of scholarships are not publicly disclosed on the website.
Scholarships
Scholarships are available for students excelling in sports, music, arts, and academics.
Waitlist
Waitlist
The school does not publicly disclose any waitlist or pool system for admissions. There is no information available on the website indicating that PBISS operates such a system.
