Updated 13 November 2026 · Independent eduKateSingapore.com senior-school news and family admissions guide. ISS International School is an IB World School with its own High School Diploma route at 21 Preston Road. It is not a conventional MOE JAE junior college with a Science or Arts net L1R5 cut-off.

The most useful ISS school news for 2026 is the published Class of 2026 IB Diploma average of 32 points, compared with a 30.88 global reference. ISS reports that 94.1% obtained the full Diploma, 81.3% obtained a bilingual Diploma, and the highest individual result was 41 of 45. These results belong to its 2026 IB cohort; the 2025 University Adviser profile presents a different previous examination group and should not be copied as the 2026 outcome.

Families exploring 2027 entry also have two distinct senior graduation pathways: the IB Diploma Programme and the ISS High School Diploma. The school accepts applications during the year, subject to availability and Grade 9–12 assessments in English, Mathematics and cognitive ability. Its 2026/27 calendar gives 7 January 2027 as the second-semester start, while its official fee structure lists S$54,836 total course fees for Grade 11 and S$57,356 for Grade 12, including the development and fee-protection components.

• Class of 2026: school-published IB mean 32, highest 41 and 94.1% Diploma award rate
• 2026 bilingual Diploma share 81.3%, not the same statistic as the overall Diploma pass rate
• ISS offers three IB stages—Primary Years, Middle Years and Diploma—plus a separate accredited ISS High School Diploma
• 2026/27 semester 1 began 3 August 2026; term break 3–11 October is past
• Winter break 12 December 2026–6 January 2027; semester 2 starts 7 January 2027
• Grade 9–12 admissions review includes English, Maths and CAT4 placement assessments
• School says complete admissions review normally takes five to seven working days, not a guaranteed offer deadline
• 2026/27 Grade 11 total course fee S$54,836; Grade 12 S$57,356, each with fee protection and development charges
• One-time 2026/27 enrolment fee S$3,667; S$510 placement assessment where applicable
• Fees for specified learning support and IB examinations can be additional
• School operates on a heritage hilltop campus at 21 Preston Road, Singapore 109355
• ISS says it has served an international student community for more than four decades and uses its Kampong Spirit pastoral model

ISS International School: verified 2026–2027 information calendar

School year / event	Confirmed information	School source
May/July 2026 IB results	2026 cohort average 32 and highest 41 published	Current ISS results panel
2026 cohort bilingual outcomes	81.3% bilingual Diploma awarded; distinct from overall 94.1%	IB 2026 results
3 August 2026	Start of ISS 2026/27 semester 1	Calendar
3–11 October 2026	2026 midsemester break, now completed	Dates
13 November 2026	Rolling applications remain subject to admission and capacity	Admissions overview
12 December 2026–6 January 2027	Published winter break	School holidays
7 January 2027	Start of semester 2, not beginning of a fresh two-year IB programme automatically	Semester 2
20 March–4 April 2027	Spring break, scheduled	Break
10 June 2027	End of semester 2 under current schedule	Year end

What the IB Class of 2026 mean of 32 tells readers—and what it cannot prove

ISS publishes a 2026 Diploma average of 32 points on the IB’s 45-point scale. It also lists the highest individual score of 41 and 94.1% of candidates obtaining the full Diploma. The international average quoted by the school is 30.88. Those are school results from one completed examination cohort, not an entry cutoff for incoming Year 11 pupils. A parent should label the examination and reporting year before comparing the information.

A Diploma award means the learner satisfied the relevant IB requirements, which extend beyond a total of subject points. Six academic subjects and the core place demands on research, reflective thinking and purposeful activities. A high overall score can be helpful for university selection but does not waive a subject prerequisite. A student seeking engineering may need specific Higher Level mathematics and science subjects, while someone interested in humanities has different requirements.

An average of 32 does not describe every learner. It cannot tell a family how many points a particular future pupil will achieve or how much they personally improved. Students enter with different prior language proficiency, academic records and personal circumstances. A family is better served by asking how ISS provides consultation, academic support and appropriate challenge than by treating an average as a personal prediction.

The 2026 highest score of 41 is an individual achievement, not the score of every pupil. It would be misleading to say the school has a 41-point average or to treat another school’s results as proof that ISS students took those exams. Use the school source and the correct cohort. ISS 2026 IB results.

Why 81.3% bilingual Diplomas and 94.1% overall Diploma awards are different

The school reports 81.3% receiving bilingual Diplomas and 94.1% obtaining a Diploma. These percentages have different labels and may use different denominator definitions. The bilingual designation follows specific IB language and subject conditions; it is not simply a certificate for being able to converse in two languages. A family should not add the percentages together or describe 81.3% as the fraction of candidates passing all subjects.

A student may speak Mandarin, Korean, Hindi, French or another language comfortably yet need further preparation to analyse academic texts or write longer arguments in that language. A bilingual IB Diploma can reflect depth of academic performance in more than one language. The available school subject list and the child’s previous learning determine whether the intended language pathway is realistic.

Parents can build on bilingual strengths by encouraging sustained reading, summarising an argument and discussing how translation shifts meaning. Such skills can support future work in business, research, media and international settings. But a bilingual designation is not a university offer or a guarantee that every programme recognises a student in the same way.

The percentages are meaningful when correctly labelled. For an actual applicant, the next question is what language subjects ISS can offer at the required level in the upcoming cohort, including any timetable, minimum enrolment or assessment conditions.

IB Diploma versus the ISS High School Diploma: two recognised but different outcomes

ISS offers the full International Baccalaureate Diploma Programme and its own High School Diploma. The latter is described by the school as a personalised two-year American-style route with accreditation and university recognition. The two are not automatically equivalent for all degree entry purposes. The full IB Diploma demands its specific external and internal assessments; an American-style high-school credential uses a different credit and graduation structure.

A student with uneven prior academic preparation might want to discuss which programme supports realistic progress. That discussion should not be framed as a judgement about the teenager’s intelligence. Rather, parents and school staff can examine the child’s subjects, language readiness, interests and future qualifications needed. The school should explain which actual university routes accept the proposed record.

A future Engineering applicant may need Higher Level Mathematics and a science through IB or corresponding additional qualifications if following another route. A student interested in arts, design or communication may face auditions or portfolios at university. In both cases, admissions depend on the external institution’s conditions, not only the school name.

Before accepting a senior programme, request a written subject plan that identifies graduation credential, expected courses and assessments, available support and intended future options. Families should keep suitable alternatives until a formal school offer is confirmed. ISS qualification overview.

The school calendar: January 7 is semester 2, not Year 11 automatically

ISS’s official academic calendar says the school year began on 3 August 2026. Semester 1 continues until its winter break, which runs 12 December 2026 to 6 January 2027. 7 January 2027 is the beginning of semester 2. This matters because a family moving from a January–December national school system might incorrectly assume that January is the normal start of an entirely new two-year IB Diploma.

The school’s admissions page advertises rolling enrolment. It does not mean that every candidate can join the final IB Diploma year at any moment without considering required coursework, internal assessments or subject sequence. A Grade 11 transfer may be possible under certain arrangements, but the school must evaluate the student’s record, timetable and learning needs. A semester start is an operational date, not an unconditional seat offer.

The school’s spring break is listed for 20 March–4 April 2027 and the academic year ends on 10 June. A prospective family can use these dates to plan relocation, but should verify later changes through current school communications. Holidays and assessment deadlines should not be copied from another international school’s calendar.

Students must consider whether their previous academic year has a gap or overlap. A student finishing O-Levels late in 2026 may need a well-supported transition rather than jumping into an IB programme without the necessary first-semester foundations. Official 2026/27 calendar.

2026/27 admissions: Grade 9–12 English, Mathematics and CAT4 placement

The ISS admissions overview says Grade 9–12 applicants take English, Mathematics and a Cognitive Abilities Test (CAT4) as part of placement review. That is distinct from primary-school or younger secondary English testing. The school considers academic history, development, English proficiency and whether it can adequately support the pupil. A completed form does not guarantee acceptance into every grade or subject.

The school states that full review normally takes five to seven working days after all documents have been received. This is a typical administrative timeframe, not a legal guarantee that the applicant will be offered a seat within a week. The school can request further reports or an interview. Families should keep this distinction in mind before booking international travel or withdrawing a child from an existing school.

Placement testing should be understood as a way to evaluate readiness and support needs. A teenager may be capable in mathematical reasoning while requiring more academic English, or strong at writing while needing algebra repair. A useful assessment identifies specific weaknesses that can be addressed through feedback and a coherent study plan.

An actual ISS place is confirmed after the school issues a formal offer, the parent accepts it, pays the published enrolment charge and signs the required student contract. A school tour, an encouraging conversation or a test result is not yet a confirmed admission. Read all ISS admissions steps.

The 2026/27 Grade 11 and Grade 12 fees: course totals, not tuition alone

The official 2026/27 ISS fees table lists a total annual course fee of S$54,836 for Grade 11 and S$57,356 for Grade 12. These totals include tuition, a development fee and the fee-protection charge. The underlying Grade 11 tuition is S$51,925 and Grade 12 tuition S$54,430; the development fee is S$2,582, with the respective protection components shown in the school’s table.

Parents should not assume that the quoted tuition figure alone is the final cost, nor simply add the development fee twice if they are reading a total that already includes it. The school also lists a one-time S$3,667 enrolment fee and a S$510 placement-test fee where applicable. The latter is not a universal tuition surcharge for every family; it applies when the school requires the assessment under the relevant fee arrangement.

Additional expenses can include external IB examinations, travel, service activities, ECA participation, bus transport and specialist support. The school lists IB assessment fees of S$600–S$2,500 in its miscellaneous table and learning support charges subject to assessment. A family needs the written student contract and individual invoice to understand what will actually be payable.

The school also sets terms for withdrawals, late payments and possible discounts. A parent should not pay fees using account information copied from a third-party article, and should verify the recipient through official channels. Future-year amounts may differ. Read the 2026/27 fee schedule.

Early-bird and sibling tuition discounts: distinguish benefit from entitlement

ISS’s 2026/27 fee page describes a 5% early-bird tuition discount when payment reaches the school during the period specified in the invoice. It also states a second-child tuition discount of 10% and a discount of 15% for the third and subsequent child with further enrolment-fee arrangements. These are published benefits under conditions, not automatic reductions of every item on the invoice.

Families should check whether the child qualifies, which fee categories are covered and whether different discounts may be combined. A reduction in tuition does not necessarily reduce development charges, examination fees, transport or other third-party services. If a sibling leaves the school, the continuing pupil’s eligibility may change.

A sound budget begins with the full annual contract amount, then applies only confirmed discounts. Parents can request a written breakdown for their actual children and start dates rather than estimate from an old website screenshot. This prevents misunderstanding when an offer is accepted.

Discounts are useful but should not determine the entire school choice. The child’s academic interests, support needs and long-term university options remain important. A lower price is not helpful if the proposed qualification or subject combination does not fit the learner.

The ISS Kampong Spirit and what pastoral care looks like

ISS describes its home-room communities as Kampongs, a deliberate reference to the close-knit social fabric of Singapore’s traditional neighbourhood communities. The school emphasises belonging, relationships between staff and students, inclusion and a safe environment for international learners. It is school culture information rather than an examination statistic, and it should not be translated into an unsupported claim that every pupil has identical outcomes.

A family interested in pastoral care can ask what the homeroom adviser actually does and how the school notices a student who is becoming isolated. Which adult can the pupil approach when academic work becomes difficult? How are parents contacted about wellbeing or a persistent learning issue? What happens when a new student is adjusting to English-medium schooling?

Small classes may help teachers recognise individual needs, but class size alone is not a guarantee of personal attention. Good support requires staff to respond to evidence, communicate constructively and give students an opportunity to improve. A parent can ask for examples of how feedback leads to a plan after a weak test or essay.

A student should also have room for friendships, creative interests, sport and service, particularly during a demanding two-year diploma. A supportive school culture is most valuable when it helps academic independence and personal development reinforce one another. ISS school-life overview.

The heritage hilltop campus: 21 Preston Road and daily access

ISS is located at 21 Preston Road, Singapore 109355, in a heritage campus with buildings associated with Singapore’s earlier colonial period. The school describes a green hilltop environment with gardens and a quieter atmosphere. Families may find this appealing, but a school campus must be judged by how learning spaces and student services actually function today rather than only by architectural charm.

A prospective student should test the full weekday journey, not merely the time between MRT stations. Walking uphill, waiting for transport, rain and late extracurricular sessions can affect the actual routine. A hypothetical additional half-hour each way compared with a closer school amounts to five hours across five days. For an IB student, that time could otherwise support a carefully written paragraph, an Extended Essay investigation or sleep.

The school publishes bus service and campus-access information on its contact page and offers campus tours. A family should confirm gate and reporting instructions for assessments before arriving, especially when an invitation has a specific location or time. A map pin alone may not convey the correct entrance.

Campus facilities should support meaningful work. A student who wants to study Science may need laboratory access and timely feedback; another interested in Literature may value libraries and quiet reading. The right school is where the teenager can learn consistently and remain healthy over time.

Multilingual education: confidence in a home language and academic English

The ISS school community describes itself as international and multilingual. For some entrants, the strongest existing academic language may not be English. A child who can converse with friends in English may still find it difficult to write an evidence-based historical argument or explain a complex scientific experiment in that language. Recognising the distinction can help teachers give targeted support instead of treating the pupil as less capable overall.

Parents can encourage reading across languages while helping the student build accurate academic English. One practical task is to explain a concept in the language the child knows best, then restate it in English and compare precision. The student should learn subject-specific vocabulary with examples and practise explaining why a conclusion follows. Mere repetition of impressive words is not sufficient.

For the bilingual Diploma, students need to satisfy IB language and subject conditions, so speaking two languages at home does not automatically result in the award. Families should consult the school’s actual subjects and course availability.

A confident learner should be able to seek clarification and revise work without embarrassment. Language development is a process, and a school that can distinguish language barriers from conceptual misconceptions may offer more useful support.

The IB Extended Essay and TOK: developing evidence-based learning

The Extended Essay requires a focused research question, an appropriate methodology, credible sources and coherent writing. A learner may be interested in environmental science, historical events or Mathematics but needs to narrow the topic until it can be investigated within a clear scope. A large claim such as ‘technology improves society’ is too broad; a smaller question with defined evidence can lead to genuine analysis.

Theory of Knowledge asks students to compare the ways different disciplines justify claims. A mathematical proof, a laboratory experiment and a historical document rely on different forms of reasoning and have different uncertainties. Students can become more thoughtful when they know when a conclusion is warranted and when evidence remains limited.

Creativity, Activity and Service gives learners opportunities to participate purposefully outside the classroom. A service project should reflect community needs rather than just produce participation photographs. A creative work should have intention and revision. Sport should be safe and sustainable alongside academic responsibilities.

Parents can support students by protecting time for planning and feedback but should not write assessed work or provide unauthorised assistance. The student is responsible for the inquiry, citations and final conclusions. IB Diploma Programme requirements.

University choices and the difference between historical results and future offers

ISS describes university progression as one aim of its senior education, but an IB Diploma result does not guarantee any particular university place. An applicant interested in Engineering, Medicine, Social Sciences, Design or another field must examine the chosen institution’s published subject prerequisites. Some courses specify Higher Level Mathematics or Sciences, while others rely on language, portfolios or interviews.

The separate ISS High School Diploma can also be relevant for university entry, subject to the institution’s rules for that credential. Families should request a clear course transcript plan and verify how potential universities assess the proposed subjects, rather than assume that the words ‘recognised worldwide’ mean identical admission treatment everywhere.

A useful decision exercise is to choose three plausible future academic interests and list the relevant requirements. Students can then compare whether an IB or HSD pathway preserves those options. This exercise is especially valuable before a teenager commits to a highly specialised subject combination.

Finally, keep alternatives realistic. A child may thrive in one learning environment and struggle in another even when both have strong histories. School choice should be informed, ambitious and personally sustainable.

Full SBB, SEC 2027 and why ISS is not an MOE JAE course

Singapore’s Full Subject-Based Banding framework allows secondary pupils to study individual subjects at G1, G2 and G3 levels. The first national SEC examination is scheduled for 2027, followed by the revised post-secondary admissions framework from 2028. These changes belong to the national system and cannot be converted into a guaranteed ISS Grade 11 admission score.

ISS is a private international school with its own applicant review, assessment and course selection. Its students normally graduate with the IB Diploma or ISS HSD, rather than the Singapore-Cambridge GCE A-Level qualification. A family transferring from national secondary education should check how the child’s actual results are evaluated and whether any government approval applies to their circumstances.

A previous mainstream JC net L1R5 cut-off cannot be assigned to ISS to create a comparison. Nor can the school’s IB average of 32 be described as a JAE entrance point. Those numbers measure different qualifications at different academic stages.

The sound comparison is among course requirements, recognised outcomes, fees, subject choices, daily travel and the teenager’s needs. Parents should treat each pathway on its own terms.

A family action sheet for ISS Grade 11 entry in 2027

First establish whether the teenager wants the full IB Diploma or the school’s HSD. The family should understand exactly which graduation certificate and subject record the pupil will receive, and check that it meets plausible university prerequisites. A course chosen only from a school brochure can create avoidable difficulties later.

Next, prepare transcripts and other application documents, then discuss the Grade 9–12 assessment process with Admissions. The school normally uses English, Mathematics and CAT4 data to evaluate the applicant. Students can strengthen foundational reasoning and academic writing without trying to memorise secret test questions.

Third, review fee totals and the 2026/27 calendar. The January 7 semester-start may be relevant to relocation but is not automatically a fresh Grade 11 IB intake. A family should check programme availability and how ongoing IB work will be handled for any mid-year arrival.

Finally, visit Preston Road, test the weekday commute and ask about consultation, wellbeing and extra-curricular opportunities. A good decision helps the student develop independent understanding and confidence rather than expecting a particular IB point total from the moment of admission.

Question	Original school evidence	Family’s next action
2026 IB average?	32 points; highest 41	Interpret as cohort results, not a new-entry cut-off
2026 bilingual Diploma?	81.3%	Check academic language subject conditions
IB or High School Diploma?	Curriculum overview	Check the actual university prerequisites
Can Grade 11 enter in January?	Rolling admissions / Jan 7 semester	Ask about specific course availability
Which assessment?	English, Mathematics, CAT4	Provide academic history and support needs
2026/27 fees?	School fee structure	Budget total course fees and extras
Current address?	21 Preston Road	Verify visitor entrance and weekday journey

Frequently asked questions about ISS International School 2026

What was ISS’s Class of 2026 IB Diploma average?

32 points, according to the school website.

What was the top IB score in 2026?

41 points out of 45.

What percentage obtained the IB Diploma?

The school reports 94.1% for the 2026 cohort.

How many were awarded a bilingual Diploma?

81.3%, a different metric from overall Diploma award rate.

Does ISS offer only the full IB Diploma?

No. It also describes a separate accredited ISS High School Diploma.

Does ISS use MOE JAE cut-off points?

No. Its own application process assesses prior learning and placement.

Which Grade 9–12 tests are required?

English, Mathematics and CAT4, according to its admissions overview.

Is 7 January 2027 the start of an entirely new school year?

No. It is the published start of semester 2 of the August 2026–June 2027 academic year.

What is the Grade 11 total 2026/27 course fee?

S$54,836 including the listed tuition, development and fee-protection charges.

How much is the Grade 12 course fee?

S$57,356 under the same published school-year structure.

What is the enrolment fee?

A one-time S$3,667 under 2026/27 terms.

Where is ISS?

21 Preston Road, Singapore 109355.

Official ISS, IB and related reading

• ISS official home and Class of 2026 IB results
• ISS admissions overview
• School 2026/27 calendar
• ISS annual and one-time fee schedule
• School news and student stories
• ISS Kampong and school-life description
• ISS IB curriculum
• IB Organisation Diploma
• eduKate Chatsworth 2026 comparison

Editorial verification: 13 November 2026. Results and school-year figures are taken from ISS’s 2026 school home, admissions, calendar and fees pages. The IB Diploma and High School Diploma are described as separate qualifications, and January is correctly labelled as the beginning of semester 2. No invented JC net cut-off, guaranteed individual score or independently measured Google search-volume rank is asserted. This article is independent and has not been endorsed by ISS.