This comparison is deliberately not a price ranking. SISB Rayong publishes a trilingual Singapore-to-Cambridge route and 2026/27 tuition of ฿401,700–฿789,300. MIS publishes British EYFS with Montessori methodology through Cambridge IGCSE and A-Level, with tuition of ฿210,000–฿517,500 plus a compulsory ฿57,000–฿91,500 supplementary fee. Compare complete totals, support and the Ban Khai-to-Nongprue commute.
// Jump to → SISB Rayong editorial ↗ · MIS editorial ↗ · SISB Rayong vs Regents Pattaya ↗ · SISB Rayong vs Rugby School Thailand ↗ · SISB Rayong vs TPIS ↗ · SISB Rayong vs BPIS ↗
Both schools publish dated 2026/27 tuition. SISB’s current admissions stop at Grade 10 despite fees through Grade 12; MIS publishes an established Preschool-to-Year-13 day-school route, was founded as a nursery in 1988 and joined XCL Education in 2026.
// In this guide → SISB Rayong editorial ↗ · MIS editorial ↗ · SISB Rayong vs Regents Pattaya ↗ · SISB Rayong vs Rugby School Thailand ↗ · SISB Rayong vs TPIS ↗ · SISB Rayong vs BPIS ↗ · British schools hub ↗ · Where to live ↗
| Dimension | SISB Rayong | Mooltripakdee International School |
|---|---|---|
| School | Singapore International School Rayong | Mooltripakdee International School |
| Age span | Ages 2–18; 2026/27 new applications Nursery 1–Grade 10 | Ages 2–18; Preschool through Year 13 |
| Curriculum | EYFS, Singapore Primary, Singapore/UK hybrid Grades 7–8, Cambridge IGCSE and AS/A-Level | British EYFS and English National Curriculum with Montessori early years, Cambridge IGCSE and AS/A-Level |
| Published tuition | 2026/27: Nursery ฿401,700; Kindergarten ฿429,600; Primary ฿470,700–฿567,300; Grades 7–10 ฿609,300–฿650,700; Grades 11–12 ฿789,300. | 2026/27 tuition: Preschool ฿210,000–฿245,700; Kindergarten ฿265,500; Years 1–2 ฿285,600; Years 3–6 ฿305,100; Years 7–9 ฿357,000; Years 10–11 ฿423,200–฿436,200; Years 12–13 ฿517,500, plus compulsory supplementary fees. |
| Named extras | Application ฿5,000; assessment ฿5,000; enrolment ฿220,000; deposit ฿50,000; resources, meals and ELS separate. | Compulsory supplementary ฿57,000–฿91,500; application ฿3,000; enrolment ฿70,000; refundable deposit ฿10,000; bus, ELS, exams, trips and some support separate. |
| Planning point | Fees reach Grade 12, but 2026/27 new applications stop at Grade 10. | Day-only; add the compulsory supplementary fee before comparing and verify the Year 1–9 test, interview and trial-class sequence. |
| Sources | campus overview · 2026/27 fees | 2026/27 fees · admissions · secondary pathway |
| Live editorial | Read the SISB Rayong editorial | Read the MIS editorial |
Both fee schedules are dated 2026/27, but their inclusion sets differ. Request SISB’s grade, entry, resources, meals, ELS and transport rows alongside MIS tuition, compulsory supplementary fee, application, enrolment, deposit, bus, ELS, exams, trips and any additional-needs support.
SISB publishes 2026/27 tuition of ฿401,700–฿789,300. MIS publishes ฿210,000–฿517,500 tuition plus compulsory supplementary fees of ฿57,000–฿91,500.
SISB moves from EYFS and Singapore Primary into Cambridge IGCSE and AS/A-Level. MIS layers Montessori methodology over British EYFS before the English National Curriculum and Cambridge IGCSE and A-Level.
SISB’s tariff reaches Grade 12 while 2026/27 new applications stop at Grade 10. MIS offers a complete day-school pathway, but families should verify current subjects, compulsory supplementary rows and assessed support.
Both schools publish routes through age 18. SISB combines three languages and Singapore stages with Cambridge qualifications; MIS follows a British route through IGCSE and A-Level.
Ask both schools to state the child’s proposed class, start date, age cut-off, core hours and following year. SISB publishes Nursery, Kindergarten, Primary and Grades 7–12 fee rows; MIS publishes Preschool through Year 13. Similar ages do not ensure identical placement.
SISB’s new-applicant range stops at Grade 10 despite senior fees. MIS publishes a complete day-school route, but parents should still confirm the offered class, present cohort and next-year progression.
SISB records English, Thai and Mandarin. Ask for the weekly allocation, subject language, newcomer support and transition from Singapore Primary into Cambridge stages.
MIS records English as the medium alongside Thai and Mandarin. Ask how Montessori methodology is used within EYFS, how British primary stages appear in current work and how secondary pupils prepare for Cambridge qualifications.
At both visits, request anonymised work and the report format. Observe how teachers explain unfamiliar tasks, differentiate work and support pupils new to English.
SISB’s 2026/27 tuition runs from ฿401,700 to ฿789,300. Application and assessment are ฿5,000 each, enrolment ฿220,000 and deposit ฿50,000. Resources are ฿30,500–฿84,000, meals ฿26,400–฿39,000 and ELS ฿20,000–฿30,000 per term.
MIS tuition runs from ฿210,000 to ฿517,500, but every comparison must add its compulsory supplementary fee of ฿57,000–฿91,500 for meals, insurance and learning resources. Application is ฿3,000, enrolment ฿70,000 and refundable deposit ฿10,000.
MIS bus is ฿39,000–฿90,000 yearly and English Learning Support ฿45,000–฿90,000 when required. Uniforms, trips, external examinations and some additional-needs support remain extra. Create totals for cash before attendance, complete first year and a normal recurring year.
SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. Confirm which senior grades currently operate, accept newcomers and offer each subject.
MIS publishes an established IGCSE and A-Level route. Ask for current subjects, cohort sizes, completion routes, university counselling and campus-level outcomes rather than assuming every option runs regardless of demand.
Rehearse relocation after two years. Request the transcript, curriculum map, language evidence and teacher references each school would supply.
SISB publishes ELS at ฿20,000–฿30,000 per term. MIS publishes English Learning Support at ฿45,000–฿90,000 yearly when required, while some additional-needs support is extra but unpriced in the ledger.
If support matters, request the staff member, group size, minutes per week, review date, progress measure, exit criteria and price. Separate English acquisition from other learning needs.
Bring existing reports before assessment and ask admissions to state any limitations in writing.
SISB’s published sequence reaches Cambridge IGCSE and AS/A-Level, but the Rayong campus opened in 2023 and its 2026/27 new-applicant range stops at Grade 10. Ask which secondary grades are operating now, how many pupils are in each cohort, which IGCSE subjects are taught and when the first Rayong AS/A-Level cohort is expected.
MIS publishes an established IGCSE and A-Level route. Ask which subjects run this year, what minimum enrolment each option needs, how timetable conflicts are handled and what university-counselling evidence the current cohort receives.
For either school, request anonymised subject-choice forms, a sample transcript, the examination calendar and the university-counselling timeline.
MIS lists Cambridge Assessment International Education as a school-published claim. SISB’s current ledger record does not list a campus-level accreditation. Ask each school for the campus-specific register or examination-centre evidence that applies to the child's programme.
Accreditation still does not make the classroom choice automatically. Compare the proposed teacher, class size, language load, homework pattern, assessment style and reporting cadence.
SISB publishes a 2% full-year tuition discount, sibling tuition discounts of 5% for the second child and 10% for later children, and a 20% enrolment reduction from the second child. MIS publishes 5% off full-year prepayment, 5% sibling tuition for the first two children and 10% from the third child.
Ask whether discounts combine, whether they apply to the compulsory supplementary fee and what happens if the family withdraws.
SISB is in Nong Taphan, Ban Khai; MIS is near Mabprachan Lake in Nongprue, Banglamung. Drive both routes at arrival and collection times, including work and sibling stops.
SISB excludes transport without a published tariff. MIS publishes ฿39,000–฿90,000 annual bus bands. Ask for pickup windows, vehicle time, supervision and the exact address price. Both schools are day-only.
Save offers, fee schedules, calendars and placement answers together.
Arrive before the class begins and watch the transition from gate to room. Record how quickly the child separates, who welcomes them, which language adults use and whether the routine is understandable without repeated prompting. Ask what happens on a difficult morning and how parents are informed. A polished tour after children leave cannot answer these questions.
Ask for a starting assessment, mid-year report and anonymised work from the proposed class. At SISB, trace English, Thai and Mandarin into Singapore and Cambridge stages. At MIS, trace British primary work into IGCSE and the later A-Level decision.
Record the balance of adult-led, child-initiated, individual and group activity during the visit. Ask how teachers adapt the same task for a child who is new to English, already reading or reluctant to join a group. The right environment is not defined by one teaching philosophy; it is the setting where staff can explain how this child will participate and progress.
Confirm arrival supervision, meals, allergies, illness procedures, late collection and activities. SISB prices meals and resources separately; MIS collects them through its compulsory supplementary fee. Put excluded care, trips and holiday arrangements in writing.
Place both calendars beside the family’s work calendar. Count closures that require alternative care and ask whether holiday programmes are offered, separately registered or guaranteed to enrolled pupils. A school-year tuition comparison does not capture care purchased during long breaks.
SISB is in Nong Taphan, Ban Khai; MIS is in Nongprue, Banglamung. Verify each entrance, transport route and contract address before payment. Test gate queues, parking and the return journey.
Both schools are day-only in the current ledger. Families requiring residential care should treat that as a non-fit.
For each school, finish the sentence: “This place works if…” Include the quoted total, language routine, classroom fit, support availability, care hours, travel ceiling and next-school plan. Then write the conditions that would trigger a review. This prevents a single attractive feature from hiding an unresolved cost or transition risk.
Run the same exercise for two future dates. At age six, compare SISB Primary with MIS Year 1 on language, teaching approach and complete price. At age eleven, recheck both Cambridge transitions, current subjects and support needs.
Before signing, compare the two schools’ invoice language line by line. MIS separates a compulsory supplementary fee from tuition, while SISB prices meals and educational resources separately. Ask each admissions team to mark every compulsory, optional, refundable and one-time row, then calculate cash due before the first day, the complete first year and a normal later year. Keep every support or transport line open until assessment and address pricing are complete.
Also rehearse a mid-year move. Ask what notice is required, which reports and curriculum records would be released, how deposits are returned and whether prepaid services are refundable. Families using the Eastern Seaboard industrial corridor should test both routes at real collection time, because a lower fee cannot compensate for an unsustainable daily journey.
Ask how each school handles a mid-year departure before assuming either transfer will happen neatly at the end of a stage. Record required notice, reports supplied, outstanding-fee conditions and whether unused services can be refunded. A family expecting relocation should weight these documented terms alongside teaching and price.
Do not pay while a condition remains material and unanswered. Ask admissions to correct the offer email, retain both 2026/27 schedules and note who supplied every grade and support answer. That record makes the decision auditable.
MIS publishes lower headline tuition across the displayed bands, but its compulsory supplementary fee must be added before comparison. SISB separately adds entry, resources, meals and possible ELS charges.
Not in the same way. SISB combines Singapore and Cambridge stages; MIS follows a British route through IGCSE and A-Level.
Both publish pathways through age 18, but SISB’s 2026/27 new applications stop at Grade 10. MIS publishes Preschool through Year 13.
Ask for grade availability, tuition, application, assessment, enrolment, deposit, resources, meals, transport, trips, devices, ELS and refund terms.
Ask for year group, tuition, compulsory supplementary fee, application, enrolment, deposit, ELS, additional-needs support, bus, uniform, trips, exams and refund terms.
Use the decision framework above to weigh curriculum, fees, continuity, location and your child’s fit.