This comparison is deliberately not a price ranking. SISB Rayong publishes a trilingual Singapore-to-Cambridge route and standard 2026/27 tuition of ฿401,700–฿789,300. Regents publishes a British route through IGCSE to IB Diploma or A-Level, with standard tuition of ฿464,000–฿899,000 and boarding from Year 3. Compare exact grades, entry charges, support, boarding and the senior credential.
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Both schools publish dated 2026/27 tuition and separately priced entry and language-support rows. SISB’s current admissions stop at Grade 10 despite fees through Grade 12; Regents publishes an established through-school pathway, an IB World School record dating to 2002 and boarding from Year 3.
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| Dimension | SISB Rayong | Regents International School Pattaya |
|---|---|---|
| School | Singapore International School Rayong | Regents International School Pattaya |
| Age span | Ages 2–18; 2026/27 new applications Nursery 1–Grade 10 | Ages 1–18; Lion Cubs from August 2026, while the public tariff begins at Pre-Nursery |
| Curriculum | EYFS, Singapore Primary, Singapore/UK hybrid Grades 7–8, Cambridge IGCSE and AS/A-Level | British EYFS and IPC into IGCSE, followed by IB Diploma or A-Level |
| Published tuition | Standard 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. | Standard 2026/27: Pre-Nursery ฿464,000; Nursery ฿495,000; Reception ฿513,000; Years 1–2 ฿649,000; Years 3–6 ฿682,000; Years 7–8 ฿765,000; Year 9 ฿855,000; Years 10–11 ฿890,000; Years 12–13 ฿899,000. |
| Named extras | Application ฿5,000; assessment ฿5,000; enrolment ฿220,000; deposit ฿50,000; resources, meals and ELS separate. | Application ฿7,500; enrolment ฿60,000 or ฿107,000; experiential fee, exams, EAL, personalised support, bus, lunch and boarding separate. |
| Planning point | Fees reach Grade 12, but 2026/27 new applications stop at Grade 10. | IB World School since 2002; verify subject availability, support, the unpriced Lion Cubs tariff and any boarding requirement. |
| Sources | campus overview · 2026/27 fees | fee page · 2026/27 fees · IB registry |
| Live editorial | Read the SISB Rayong editorial | Read the Regents editorial |
Both fee schedules are dated 2026/27, but headline tuition omits material charges. Request SISB’s grade, entry, resources, meals, ELS and transport rows alongside Regents’ tuition, enrolment, experiential fee, examinations, EAL, personalised support, bus, lunch and boarding rows.
SISB publishes standard 2026/27 tuition of ฿401,700–฿789,300; Regents publishes ฿464,000–฿899,000 before its 5% annual-payment option. Both add entry, support and service costs, so compare first-year and recurring totals.
SISB moves from EYFS and Singapore Primary into Cambridge IGCSE and AS/A-Level. Regents uses British EYFS and IPC before IGCSE and a choice of IB Diploma or A-Level. Both reach Cambridge qualifications, but their primary stages, language models and senior optionality differ.
SISB’s tariff reaches Grade 12 while 2026/27 new applications stop at Grade 10. Regents offers a complete pathway and boarding from Year 3, but families should verify current subjects, support and boarding routines.
Both schools publish routes through age 18. SISB combines three languages and Singapore stages with Cambridge qualifications; Regents combines British early years and primary with IGCSE, then offers IB Diploma or 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; Regents publishes Pre-Nursery through Year 13 rows, while its new Lion Cubs age-one offer has no public tariff. Similar ages do not ensure identical placement.
SISB’s new-applicant range stops at Grade 10 despite senior fees. Regents publishes a complete route and boarding from Year 3, but parents should still confirm the offered class, present cohort, boarding availability and next-year progression. Put every placement answer into the written offer.
SISB records English, Thai and Mandarin. Ask for the weekly allocation, subject language, newcomer support and transition from Singapore Primary into Cambridge stages.
Regents records English as the medium alongside Thai and Mandarin. Ask how EYFS and IPC appear in current work, which language courses are compulsory and how Years 10–11 prepare pupils for IB Diploma or A-Level selection.
At both visits, request anonymised work and the report format. Observe how teachers explain unfamiliar tasks, differentiate work and support pupils new to English. Curriculum labels matter only when daily implementation is visible.
SISB’s standard 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.
Regents’ standard 2026/27 tuition runs from ฿464,000 to ฿899,000. Application is ฿7,500 and enrolment is ฿60,000 through Reception or ฿107,000 from Year 1. The mandatory experiential fee is ฿12,000–฿18,000; projected external examinations are ฿35,000–฿65,000.
Regents prices EAL at ฿131,000–฿214,000 yearly and personalised support at ฿27,000–฿92,000 plus a ฿3,000 assessment. Two-way bus is ฿60,000–฿168,000, primary lunch ฿34,000 and standard boarding ฿447,000 plus a ฿30,000 refundable retainer.
Create totals for cash before attendance, the complete first year and a normal recurring year. Mark refundable deposits, one-time charges, discounts and support triggered by assessment. Use the child’s exact grade rather than the lowest published band.
SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. Confirm which senior grades currently operate, accept newcomers and offer each subject.
Regents has been an IB World School since 2002 and offers both IB Diploma and A-Level at Sixth Form. Ask for current subjects, cohort sizes, completion routes, university counselling and campus-level outcomes rather than assuming every published option runs regardless of demand.
Rehearse relocation after two years. Request the transcript, curriculum map, language evidence and teacher references each school would supply, then ask a likely receiving school how placement would be decided.
SISB publishes ELS at ฿20,000–฿30,000 per term. Regents separately publishes EAL at ฿131,000–฿214,000 a year and personalised support at ฿27,000–฿92,000 a year plus assessment. Ask what triggers each service, how often it runs and which lessons pupils miss.
If support matters, request the staff member, group size, minutes per week, review date, progress measure, exit criteria and price. Separate English acquisition from learning, developmental and wellbeing needs.
Bring existing reports before assessment and ask admissions to state any limitations in writing. Compare the actual plan for this child, not the existence of a fee row.
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. A fee row through Grade 12 is useful for budgeting but is not the same evidence as a current class.
Regents’ IB World School record dates its Diploma Programme to 2002, while the school also offers A-Level. Ask which Standard Level, Higher Level and A-Level subjects run this year, what minimum enrolment each option needs, how timetable conflicts are handled and what pathway exists for a pupil who does not pursue the full Diploma.
For either school, request recent campus-level examples rather than group or brand claims: anonymised subject-choice forms, a sample transcript, the current examination calendar and the university-counselling timeline. Record what is guaranteed, what depends on cohort demand and what may require an online course or transfer.
Regents has direct IB registry evidence dating to 2002. Its Education Development Trust and ONESQA accreditation statements are school-published claims, and it does not currently publish a campus-specific CIS claim. SISB’s current ledger record does not list a campus-level accreditation, so parents should ask which examination-centre or programme approvals apply specifically to Rayong.
Accreditation still does not make the classroom choice automatically. Compare the proposed teacher, class size, language load, homework pattern, assessment style and reporting cadence. A pupil moving from another Singapore system may find SISB’s sequence more familiar; a pupil coming from a British school may map more directly into Regents. Families arriving from other systems should ask both schools to explain placement using actual prior records.
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. Regents publishes a 5% annual-payment option, with discounted tuition of ฿440,800–฿854,050, plus 5% for the third child and 10% for the fourth and later children.
Keep those reductions below the standard-fee comparison. Ask whether discounts can combine, which payment deadline applies, whether card surcharges offset the saving and what happens if the family withdraws. Record standard tuition, discounted cash paid and refund exposure as three separate figures.
SISB is in Nong Taphan, Ban Khai; Regents is in Pong, Banglamung. Drive both routes at arrival and collection times, including work and sibling stops. Record normal and rainy-day travel.
SISB excludes transport without a published tariff. Regents publishes one-way and two-way bus bands. Ask for pickup windows, vehicle time, supervision and the exact address price. If boarding matters, test the Year 3–13 weekly routine, retainer, room allocation and weekend arrangements.
Save offers, fee schedules, calendars and placement answers together. Keep every missing charge or grade commitment open until admissions confirms it in writing.
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 Regents, trace EYFS and IPC work into IGCSE and the later IB Diploma-or-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; Regents prices early-years and primary lunch separately and publishes an experiential fee. Put standard hours, care charges, 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; Regents is in Pong, Banglamung. Verify each entrance, transport route and contract address before payment. Test gate queues, parking and the return journey.
SISB is day-only in the ledger; Regents boards from Year 3. Families considering boarding should compare the child’s actual residential week rather than subtracting commute time alone.
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 Regents Year 1 on language, teaching approach and complete price. At age eleven, recheck SISB’s Cambridge transition and Regents’ IGCSE preparation, current subjects, support and boarding needs.
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.
SISB is lower on standard headline tuition at several overlapping stages, but entry, resources, meals, support, transport and boarding differ. Compare child-specific first-year and recurring totals.
Not in the same way. SISB combines Singapore and Cambridge stages; Regents follows British EYFS and IPC through IGCSE before IB Diploma or A-Level.
Both publish pathways through age 18, but SISB’s 2026/27 new applications stop at Grade 10. Regents adds Lion Cubs from age one from August 2026, although its public tariff begins at Pre-Nursery.
Ask for grade availability, tuition, application, assessment, enrolment, deposit, resources, meals, transport, trips, devices, ELS and refund terms.
Ask for year group, standard and discounted tuition, application, enrolment, experiential fee, EAL, personalised support, meals, transport, trips, examinations, boarding and refund terms.
Use the decision framework above to weigh curriculum, fees, continuity, location and your child’s fit.