MIS opened in 2010 in Nongprue, Banglamung — the same year as TPIS and a 10-minute drive from it. For 16 years it's operated as a Thai-founded British international school, accredited by Cambridge International Education (CAIE). What sets it apart from every other British school in this directory — including its near-neighbours — is the Montessori methodology layered onto the Early Years Foundation Stage for ages 2-5. That's not Montessori-by-marketing (a phrase used loosely in Thai pre-schools). It's Montessori as a structural pedagogical approach to early childhood — child-led prepared environments, mixed-age groupings, materials sequenced for self-discovery — running in parallel with the British EYFS learning goals.
The pitch in one line: Buy the British 2-18 pathway, but get a genuinely different (and arguably better-researched) Early Years foundation than any other school in the region offers. Whether the Montessori-EY advantage matters to your family depends on what age your child enters and how strongly you read the early-childhood pedagogy research.
MIS is at 77 Moo 3 Chaiyaponvithi 25, Nongprue, Banglamung — same general inland area as TPIS (about 5-10 minutes apart by car). For most Pattaya families this is a daily school-bus commitment. MIS publishes one of the more detailed bus-zone fee tables in the directory: nine published zones from Zone 1 (Nongprue, ฿39K/yr) to Zone 9 (Sriracha, ฿90K/yr), with a 50% discount for one-way only. Most other schools in the directory either don't publish bus fees publicly or quote a single range. If you live in Naklua, North Pattaya, or Sriracha, you can budget the bus before you tour.
The full pathway is the English National Curriculum: Preschool A (ages 2-3, 3 days or 5 days/week option), Preschool B (ages 3-4), Kindergarten (4-5), Year 1-2 KS1, Year 3-6 KS2, Year 7-9 KS3, Year 10-11 IGCSE (KS4), Year 12-13 AS/A-Level (KS5). Cambridge International (CAIE) is the sole exam board — there's no Edexcel option here (vs TPIS which runs both). For most subjects this is a non-issue; Cambridge is the world's biggest international British-curriculum board. For families targeting specific UK universities that prefer Edexcel syllabi in specific subjects (rare but real for some Maths and Science specs), the dual-board option at TPIS is the head-to-head differentiator.
The Montessori layer applies to Preschool A, Preschool B, and Kindergarten — ages 2-5. In primary and secondary the school is a standard British international, not a Montessori school. You're buying Montessori for three years and then transitioning to traditional British primary at Year 1. That transition is one of the things to ask about on tour — the better Montessori-into-traditional schools have a thought-out programme for the methodology shift around age 5. The schools that wing it produce children whose Y1 teachers spend the year unlearning the EY ethos. Worth probing.
MIS publishes its 2026/27 fees in a format that's unusual for the region: tuition is one column, "compulsory supplementary fee" is a separate column. The supplementary fee covers meals (lunch + snacks), on-campus accident insurance, learning resources (media, textbooks, digital platforms), and "other technological resources." It ranges from ฿57,000/yr at Preschool to ฿91,500/yr at Year 12. This is compulsory, not optional. For a Year 7 student the published tuition is ฿357,000 — but the realistic-cost figure is ฿357K + ฿85.5K supplementary = ฿442,500. For a Year 10 student it's ฿436,200 + ฿88,500 = ฿524,700.
Most schools in this directory bundle these costs into headline tuition (Rugby, Regents, ISE), so the headline numbers look higher but the real number is the published number. MIS unbundles them. Both approaches are defensible — MIS's structure is arguably more honest because each fee element is itemised, but it requires parents to do the addition. When you compare MIS to TPIS or any other school, add supplementary back to tuition before drawing conclusions. The fee table below in section 03 shows both columns explicitly.
One quirk worth understanding: at Year 11 (IGCSE final year) and Year 13 (A-Level final year), students attend for two terms only. Term 3 is taken up entirely by IGCSE and A-Level external examinations (early April through late June). MIS charges only two terms of tuition for Y11 and Y13 (฿423,200 and ฿517,500 respectively, vs. three-term equivalents at other schools). Supplementary fee is also pro-rated to two terms (฿64,350 for Y11, ฿66,550 for Y13). The school's framing is that during exam term, students are on self-study and not required to attend school. That's an unusual structure — most schools charge a flat annual fee regardless of how much classroom time happens in the exam term. For families budgeting Y11 and Y13, this is a real saving (roughly ฿140K-฿200K relative to a three-term billing model).
MIS is one of the few schools in the directory that publishes English Learning Support fees for non-native English speakers in itemised detail. Two tiers: Moderate ELS (2-4 lessons/week, ฿45,000-฿75,000/yr depending on year group) and Intensive ELS (5-10 lessons/week, ฿60,000-฿90,000/yr). For Thai, Chinese, Korean, Russian, or other non-native-English families enrolling a child at primary or secondary entry, this is a real cost that other schools often add quietly at the assessment stage. MIS putting it on the public fee sheet is the kind of transparency that signals a school confident in how it integrates non-native speakers.
Within the British-curriculum tier of the directory, MIS sits at the affordability end. At Year 7 (KS3 entry, age 11), the all-in tuition + supplementary at MIS is ~฿442K. TPIS at Grade 7 is ฿554,400 (tuition all-in). BPIS sits at a similar mid-band price point with its bilingual-secondary pathway. Regents at Year 7 is ฿604,200. MIS is roughly ฿100K-฿160K/yr cheaper at the same age than the Premium-tier comparison. What you trade for the lower fee: smaller campus, smaller cohort, no IBDP option, no global-network operating layer. What you get: genuine Montessori-EY, transparent fee breakdown, and a long-running independent British school with stable Cambridge accreditation.
Sourced directly from MIS's official 2026/27 school-fees page. Tuition is split from compulsory supplementary fees (meals, insurance, learning resources). To compare with schools that bundle costs (Rugby, Regents, TPIS), add tuition + supplementary together. Both columns shown below for honesty.
| Year group | Age | Tuition | Supplementary | All-in |
|---|---|---|---|---|
| Early Years (Montessori-on-EYFS) | ||||
| Preschool A · 3 days/week | 2 | ฿210,000 | ฿57,000 | ฿267,000 |
| Preschool A · 5 days/week | 2 | ฿225,900 | ฿57,000 | ฿282,900 |
| Preschool B | 3 | ฿245,700 | ฿57,000 | ฿302,700 |
| Kindergarten | 4-5 | ฿265,500 | ฿57,000 | ฿322,500 |
| Primary (Key Stage 1-2) | ||||
| Year 1-2 (KS1) | 5-7 | ฿285,600 | ฿70,500 | ฿356,100 |
| Year 3-6 (KS2) | 7-11 | ฿305,100 | ฿76,500 | ฿381,600 |
| Secondary (KS3) | ||||
| Year 7-9 (KS3) | 11-14 | ฿357,000 | ฿85,500 | ฿442,500 |
| IGCSE (Key Stage 4) | ||||
| Year 10 | 14-15 | ฿436,200 | ฿88,500 | ฿524,700 |
| Year 11 (2 terms, IGCSE exams) | 15-16 | ฿423,200 | ฿64,350 | ฿487,550 |
| Sixth Form (Key Stage 5) | ||||
| Year 12 | 16-17 | ฿517,500 | ฿91,500 | ฿609,000 |
| Year 13 (2 terms, A-Level exams) | 17-18 | ฿517,500 | ฿66,550 | ฿584,050 |
| One-time + recurring | ||||
| Application fee (non-refundable) | — | ฿3,000 | ||
| Enrolment fee (non-refundable) | — | ฿70,000 | ||
| Refundable deposit (new from FY26/27) | — | ฿10,000 | ||
| School bus (annual, by zone) | — | ฿39,000 – ฿90,000 | ||
| First-year total · typical Y7 day student (no bus) | 11 | ~ ฿525,500 | ||
| First-year total · typical Y10 IGCSE-prep student (no bus) | 14 | ~ ฿607,700 | ||
Sibling discount: 5% on tuition for first two children (when 2+ enrolled); 10% on tuition for the 3rd child and onwards (1st and 2nd still get 5%). Full-year payment discount: additional 5% on tuition if paid Term 1-3 up-front. Refund policy: withdrawals before term start get 50% tuition refund; withdrawals after half-term get no refund. IGCSE + A-Level external exam fees are levied in Term 3 of Y11 and Y13 separately. Late-payment interest: 1.25% per month on unpaid balance. Not included: uniforms, residential trips, optional bus (see above), ELS for non-native English speakers (฿45K-฿90K/yr), AEN (Additional Education Needs) support — all charged separately. Bank-card surcharge: 1.5% local, 2.5-3.0% international (incl. Alipay/WeChat).
If you have a 2-, 3-, or 4-year-old child and you want them in a Montessori Early Years foundation that transitions onto the British primary track at Year 1 — MIS is the only school in the Pattaya/Eastern Seaboard directory that genuinely offers this. The right family values Montessori's child-led, prepared-environment ethos in early childhood, is comfortable with a smaller school of unpublished but modest size, doesn't need IBDP optionality at Sixth Form, and is budget-comfortable around ฿350K-฿525K all-in (tuition + supplementary) per child per year through KS3, scaling to ฿525K-฿610K at the IGCSE and A-Level peak. A particularly strong fit for non-native English-speaking families, where MIS's published ELS fee structure means you know the support cost upfront rather than learning it during admissions assessment.
14 schools verified. Eleven full editorials published (Rugby, Regents, St Andrew's GV, Garden Rayong, Highgate, ISE, TPIS, MIS, BPIS, EFIP, BJP). Three more coming through Q3 2026. Maintained, not abandoned.