International School Basel vs Saint Charles International School
International School Basel and Saint Charles International School are both in Basel, about 41 km apart. Both schools offer IB programmes, and Saint Charles International School also offers Swiss and Bespoke. Published annual fees are CHF 14,270 - 37,680 at International School Basel and CHF 15,300 - 74,500 at Saint Charles International School, which puts Saint Charles International School roughly 73% higher. International School Basel takes pupils from 3 to 19, and Saint Charles International School from 8 to 20. International School Basel is the larger school, with around 1,200 pupils to Saint Charles International School's 259. Typical class sizes are 18 at International School Basel and 15 at Saint Charles International School.
ISB operates on three campuses in the Basel region of Switzerland: Aesch Campus at Arlesheimerstrasse 7, 4147 Aesch; Fiechten Campus at Fiechtenweg 72, 4153 Reinach; Reinach Campus at Fleischbachstrasse 2, 4153 Reinach. The Aesch Campus is in the municipality of Aesch, while the Reinach Campuses are in Reinach, Basel-Landschaft. Public transportation is convenient via BLT tram line 11, with Arlesheimerstrasse stop for Aesch Campus, Reinach Süd stop for Fiechten Campus, and Reinach centre stop for Reinach Campus.
Location
Saint-Charles International School is in Porrentruy, Jura, Switzerland at Rue du 24-Septembre 1, 2900 Porrentruy. The campus is less than two hours from Zürich and about one hour from Basel, and is easy to reach by car or train. From Zürich Airport, trains to Zürich Main Station and then to Porrentruy take about 2 to 2.5 hours; from Basel Airport, direct trains to Porrentruy take just over an hour. On arrival in Porrentruy, the campus is minutes away from the train station, with a six-minute walk for travelers without luggage.
Stages
Stages
The school is divided into three levels: Junior School for ages 3–11, Middle School for ages 11–14, and Senior School for ages 14–18.
Stages
Swiss Programme from primary through middle school and high school (Maturité), with instruction in French, English, and German.
School type
School type
The school is not-for-profit, co-educational day school and an IB World School offering three IB programmes (PYP, MYP, Diploma) taught in English, with an English–German Dual Language Programme available in the Junior School.
School type
The school is private and offers day schooling and boarding; boarding is available for students from age 10.
Pupil nationality mix
Pupil nationality mix
1200 students representing 60+ nationalities across three campuses.
Pupil nationality mix
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Additional learning support
Additional learning support
English as an Additional Language (EAL) is provided to support students not yet proficient in English. EAL specialists assist with reading, writing, listening and speaking, with three learning stages: Emerging, Developing and Consolidating. There are no additional fees payable for EAL support.
Additional learning support
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Country affiliation
Country affiliation
Switzerland
Country affiliation
Recognised by the Swiss Confederation and authorised to prepare students for the Maturité exams.
Religious affiliation
Religious affiliation
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Religious affiliation
Christian; founded with Christian roots and supported by the Diocese of Basel.
School day structure
School day structure
Opening hours are 07:45–18:00 during term. Drop-off is 07:45–08:20; classes run 08:20–15:50; pick-up is 15:50–18:00.
School day structure
The day includes standard classroom instruction with after-school Devoirs accompagnés (supervised study) available for students after class.
Bus service details
Bus service details
Public transportation is available via BLT tram 11 (and related rail connections) to stops at Arlesheimerstrasse (Aesch Campus), Reinach Süd (Fiechten Campus), and Reinach centre (Reinach Campus); no dedicated school bus service is listed.
Bus service details
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Fees
Fees
Fee details
Fee details
Application & admission fees
- Development Fee (one-time, payable when a place is offered): CHF 4,500. This fee is non-refundable and is not deducted from tuition.
- Waiting-list Deposit (when placed on a waiting list): CHF 1,000. Once a place is offered this deposit is offset against tuition; if no place is offered within eight months the deposit is refunded.
Annual tuition fees (by school level and EC1 flexible options)
- Early Childhood 1 (EC1) — flexible enrolment options (annual amounts): - 5 mornings (minimum): CHF 14,270. - 5 mornings + 1 full day: CHF 16,130. - 3 mornings + 2 full days: CHF 17,990. - 2 mornings + 3 full days: CHF 19,860. - 1 morning + 4 full days: CHF 21,720. - 5 full days: CHF 23,780. - Ad-hoc full day (until 15:00): CHF 100 per day.
- Early Childhood 2 (EC2): CHF 23,780 per year.
- Early Childhood 3 – Grade 5 (Primary Years Programme): CHF 27,970 per year.
- Middle School (Grades 6–8, Middle Years Programme): CHF 32,010 per year.
- Senior School (Grades 9–10): CHF 33,370 per year.
- Diploma Programme (Grades 11–12): CHF 37,680 per year.
Reductions and family discounts
- Second child from same family: CHF 1,000 discount per year. - Third child from same family: CHF 2,000 discount per year. - Fourth (and additional) child: CHF 4,000 discount per year.
Billing schedule and payment terms (how tuition is billed and typical payment plans)
- A tuition invoice is issued per household for the school year; invoices are sent electronically (paper copies available for a CHF 5 charge). ISB accepts payments in Swiss francs (CHF) only; any bank charges must be paid by the sender.
- Standard payment options for privately paid tuition (arranged annually with Finance Office): - Option 1: 100% of the annual tuition due before 15 July. - Option 2: 70% due before 15 July; remaining 30% due before the last day of school before the Fasnacht break or 15 February, whichever is earlier. - Option 3: 10 monthly instalments due on the 15th of each month from 15 July through 15 April; this option carries an administration surcharge of 2% per year.
- Company-paid tuition: 100% of annual tuition is due before 15 July.
- Late-enrolment and initial-payment rules for students starting mid-year (examples): - Enrolment from 1 June to 31 December: 100% of annual tuition is due; private payers also pay a minimum down payment of 20% at least two working days before the student starts. - Enrolment from 1 January to last day of Spring Break: 60% of annual tuition is due, plus a minimum down payment of 20% before the student starts; remainder invoiced within 30 days. - Enrolment after the first day of classes following Spring Break: 30% of annual tuition is due, plus a minimum down payment of 20% before the student starts; remainder invoiced within 30 days.
Withdrawal, re-enrolment and refund rules
- Development Fee is non-refundable in all circumstances. Waiting-list deposits are refunded if no place is offered within eight months.
- Re-enrolment withdrawals (examples of charges when a returning family confirms re-enrolment and then withdraws): - Withdrawal between the re-enrolment deadline and 31 March: no tuition fees due. - Withdrawal between 1 April and 31 May: late withdrawal fee of CHF 3,000 per student. - Withdrawal between 1 June and 15 July: late withdrawal fee of CHF 5,000 per student. - Withdrawal after 15 July: standard early-withdrawal rules apply (below).
- Early withdrawal from the school after the school year has started (tuition owed based on date of written notice): - Withdrawal between 15 July and 31 December (with at least two months' written notice): 55% of the annual tuition fee is due. - Withdrawal between 1 January and the last day of Spring Break (with at least two months' written notice): 85% of the annual tuition fee is due. - Withdrawal after the first day of classes following Spring Break: 100% of the annual tuition fee is due. - In Payment Option 3 (monthly instalments) partial annual tuition amounts are due 30 days before the date of withdrawal. ISB may withhold school records until outstanding balances are settled.
- No refund is provided for tuition in the event of school closure for force majeure events, for expulsion, or for leave of absence due to illness, accident or mental illness.
Late payment and collection
- Late payment charge: 2% per month on outstanding balances or an administration fee of CHF 50, whichever is greater. ISB may refuse entry to class, withhold records, and engage debt-collection third parties for unpaid invoices.
Other costs and fees (charged separately)
- Costs not included in tuition (examples that are invoiced separately): additional or replacement textbooks; damage or loss of school equipment; field trips, camps and excursions; external examinations (for example IB exam costs); IB DP online courses; psycho-educational evaluations; some therapies and evaluations; extra-curricular programme fees; 1:1 teacher assistant costs; and meals. Such items are invoiced separately and are subject to the payment terms on each invoice.
- After-school and holiday childcare (EC1–Grade 5): - Extended School Day (15:00–18:00) — Trimester registration: CHF 30 per day; Drop-in registration: CHF 60 per day. - Holiday Childcare (07:45–17:00 on selected holidays) — Pre-registration: CHF 90 per day; Drop-in registration: CHF 150 per day. Ad-hoc EC1 full-day rate (until 15:00): CHF 100 per day.
- Paper invoice fee (if paper invoices are requested): CHF 5 per invoice. Special billing or changes to payment frequency may incur administration fees (e.g., CHF 100 per change request or special billing).
Boarding / residential provision
- ISB operates as a co-educational day school for students aged 3–19; there is no boarding provision and no boarding fees.
Fee payment options and bank details
- Payments are accepted in Swiss francs (CHF) and may be made by bank transfer. Any bank charges are the responsibility of the payer. The school's bank details for CHF transfers are provided for tuition payment (Bank Cler AG, Basel; IBAN: CH79 0844 0697 0092 9000 0; SWIFT/BIC: BCLRCHBB). Parents should indicate family name and student names when making transfers.
Key administrative provisions
- Parents/guardians must maintain health, accident and liability insurance for each enrolled student. ISB reserves the right to invoice separately for any additional costs described above and to take action for overdue accounts as set out in the financial regulations.
Fee details
Admission & Application Fees:
- Day students (day-school admission): CHF 500 (one-time, non-refundable). - Boarding students (boarding admission): CHF 3,000 (one-time, non-refundable).
Tuition fees (annual and per-term / per-semester equivalents):
Note: Tuition is quoted as an annual amount. Billing may be processed by semester on request; where a per-term amount is shown below it is the annual figure divided by two (per-semester).
- Primary School (Swiss curriculum): - Annual: CHF 6'600 (families in the Canton of Jura) / CHF 14'400 (outside the canton). - Per semester (billing-by-semester equivalent): CHF 3'300 / CHF 7'200.
- Middle School (Collège, Swiss curriculum): - Annual: CHF 7'200 (Jura) / CHF 18'000 (outside the canton). - Per semester: CHF 3'600 / CHF 9'000.
Boarding fees (packages, inclusions and exclusions):
- 5-day boarding package (board and school week activities): CHF 32'700 per year. Included elements listed for the package: full board during the week, the boarding programme, supervised homework, on-site extracurricular activities, day trips, certain sports outfit items, and some cultural/outings; certain items are excluded (residence permit fees, books and school supplies in some circumstances, certain exam and activity costs, travel, pocket money, occasional laundry, airport transfers and some camps/trips).
- 7-day boarding package (full weekly boarding including weekends): CHF 47'000 per year. The 7-day package includes weekend activities, laundry and additional weekend services; a number of items remain excluded (travel, some lessons/activities charged separately, pocket money, airport transfers, certain exam fees and specialist activities).
Other recurring fees and one-off academic/exam charges:
- General / annual fees (covers textbooks, school supplies, school outings, ski/green camp, graduation trips and administrative costs): billed in two instalments (at the start of the school year and at the start of the second semester). Amounts vary by programme: - Primary: CHF 1'000 per year. - Middle School (Collège): CHF 1'500 per year. - Swiss Lycée / Bilingual Lycée: CHF 1'500 per year. - International Section MYP levels: CHF 1'500 per year. - IB DP (final years): CHF 2'500 per year.
- Support / tutoring and extra academic services (examples): - Private 45-minute lessons: CHF 100 per lesson. - Semi-private (max 3 students) 45-minute: CHF 60 per lesson. - Group (4+ students) 45-minute: CHF 30 per lesson. - Language-exam preparation courses: approx. CHF 1'000 per semester (charged when organised). - Language examination fees: generally between CHF 400 and CHF 750. - IB DP examination fees: CHF 2'980.
- Extras commonly excluded from package fees and billed separately: specialist lessons (horse riding, music, golf, aviation), certain travel and airport transfers, replacement of lost/damaged books or licences, some medical or insurance costs beyond those listed, pocket money and occasional laundry/dry-cleaning.
Billing schedule and payment terms:
- Invoices are issued in advance and are payable within the stated payment term; billing may be processed by semester on request. Payments are to be made in Swiss francs (CHF). Payments in cash are not accepted. Late payments incur interest at 1% per month; administrative reminder fees apply (typical reminder fees: CHF 20 / CHF 50 / CHF 100 for successive reminders). No place reservation is processed before payment of the registration/admission fee; students may not attend classes until invoices are paid.
Cancellation, refunds and contractual penalties:
- For new applicants: if registration is cancelled before 30 June, a cancellation fee equal to two months of tuition (and boarding, where applicable) is charged; if cancelled after 30 June a cancellation fee equal to three months of tuition (and boarding where applicable) is charged.
- For current students: withdrawal before the end of the school year makes all expenses for the current trimester and the following one payable. Unless written notice is given by parents before the specified deadline for re-registration (28 February), students are automatically entered for the following school year; cancelling after that date creates a financial obligation (example: tuition for the first three months may be payable as compensation).
Uniform / clothing and included clothing items:
- No separate general uniform fee is listed. For boarding students a sports outfit (t-shirts, leggings or jogging pants) is listed among included items in the boarding packages; additional specialist sports or activity clothing or equipment may be charged separately.
Fee payment options:
- The school accepts international payments via Flywire (enables bank transfers and local payment methods in many currencies) and invoices are payable by bank transfer. Payments in cash are not accepted. Specific payment instructions and the school's Flywire payment portal are used for international transactions.
Summary of the key amounts at a glance (examples):
ISB offers the International Baccalaureate across three programmes: Primary Years Programme (PYP) for ages 3–11; Middle Years Programme (MYP) for ages 11–16; and the Diploma Programme (DP) for ages 16–18. The school is English-language. The PYP is offered in English with German as a second language, and a Dual Language Programme (English and German) is available for younger students. The MYP provides an eight-subject-group framework and includes a co-curricular Z-Block for Grades 6–8. The IB Diploma Programme is a rigorous university-preparatory course offered through ISB's Senior School, with ISB offering over 65 academic courses. ISB uses Continuums—subject guides that ensure a seamless educational experience across its three campuses.
Curriculum details
Saint-Charles offers two curriculum pathways: the Swiss Programme and the International Baccalaureate (IB) Programme. The Swiss Programme covers primary through maturité and uses instruction in French, English and German; Primary is taught in English and French, and the Middle School is multilingual in English, French and German. The Swiss Maturité is bilingual French-English and is recognised by the Swiss Confederation, with the school authorised to prepare students for maturité examinations. The IB Programme is taught in English, offering the Middle Years Programme and the Diploma Programme, with English as the language of instruction for all subjects and ESL support available. Immersion language teaching introduces English and German from early years through 'language islands' where other subjects are taught in additional languages, laying the foundation for bilingual Matura or the IB Diploma Programme.
Student teacher ratio
Student teacher ratio
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Student teacher ratio
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Exam results
Exam results
IB Diploma results show strong performance. In 2025, 158 students completed the IB Diploma Examinations. Of the 147 students who completed the full Diploma, ISB achieved a 96.6% pass rate and an average of 34.4 points (out of 45), with 17% achieving 40+ points. Diploma Programme Courses: For the 11 students who took Diploma Programme Courses, they completed 48 courses with an average of 4.1 points per course. MAP test results measure reading and mathematics progress for Grades 3–10; Fall 2025 results are posted.
Exam results
IB Diploma Programme class of 2025 results: 17% entering a top 25 institution; 1 in 3 graduates joined a top 100 university; 30% were recognised for excellence in their subject areas.
Higher education progression
Higher education progression
ISB's Pathways to Swiss Universities explains that the IB Diploma earned at ISB is fully recognised by Swiss universities as equivalent to a Swiss Matura, provided it meets the required criteria. The Swiss admission framework includes six IB subject groups (first language, second language, humanities, natural science, mathematics, and an elective) and HL requirements for some universities (e.g., ETH Zürich and EPFL). Most bachelor programmes at Swiss universities are taught in German, French or Italian, with some courses in English; admission decisions are made by the individual universities. ISB provides a dedicated university counselling team to guide Swiss and international applications and hosts annual university fairs with representatives from universities worldwide.
Higher education progression
University preparation and guidance are core at Saint-Charles. A dedicated University Support Team helps identify universities and coordinate applications, with university talks and fairs accessible to students. From the Middle Years Programme, students take part in regular guidance lessons and receive tailored advice on IBDP subject selection in MYP5; in the Diploma Programme, guidance becomes more personalised with one-to-one meetings and university representation is facilitated by the school, supported by a University Library.
Gifted and talented
Gifted and talented
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Gifted and talented
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Academic calendar
Academic calendar
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Academic calendar
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Wellbeing & support
Wellbeing & support
Social & emotional learning
Social & emotional learning
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Social & emotional learning
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Special educational needs (SEN)
Special educational needs (SEN)
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Special educational needs (SEN)
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English as an additional language
English as an additional language
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English as an additional language
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Mental wellbeing
Mental wellbeing
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Mental wellbeing
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Safeguarding
Safeguarding
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Safeguarding
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Safeguarding policy
Safeguarding policy
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Safeguarding policy
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Facilities
Facilities
Facilities overview
Facilities overview
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Facilities overview
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Sports facilities
Sports facilities
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Sports facilities
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Academic facilities
Academic facilities
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Academic facilities
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Extra curricular facilities
Extra curricular facilities
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Extra curricular facilities
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Parent experience
Parent experience
History
History
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History
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Community
Community
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Community
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Parent teacher association
Parent teacher association
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Parent teacher association
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Extra-curricular
Extra-curricular
Academic & intellectual
Academic & intellectual
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Academic & intellectual
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Arts & creative
Arts & creative
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Arts & creative
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Cultural & language
Cultural & language
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Cultural & language
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Social & hobbies
Social & hobbies
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Social & hobbies
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Community & service
Community & service
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Community & service
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Leadership & professional
Leadership & professional
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Leadership & professional
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Lifestyle & wellbeing
Lifestyle & wellbeing
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Lifestyle & wellbeing
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Language provision
Language provision
Language provision
Language provision
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Language provision
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Bilingual teaching
Bilingual teaching
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Bilingual teaching
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Immersion programs
Immersion programs
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Immersion programs
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Reputation
Reputation
Awards
Awards
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Awards
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Accreditations
Accreditations
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Accreditations
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Admissions
Admissions
Admissions
Admissions
1. Explore: Learn about ISBasel's personalised approach to education and schedule an individual consultation in person or online to understand how ISBasel can support your child. The school outlines three levels—Junior School (ages 3–11), Middle School (ages 11–14), and Senior School (ages 14–18)—which you can discuss during this consult. This initial exploration helps families determine fit before moving to the next steps.
2. Visit: ISBasel's doors are open year‑round. Schedule a visit or call, and you will be welcomed for an individual tour at your convenience. During the visit you can explore the school in depth and meet key staff members. This visit is designed to give you a first‑hand sense of the school environment and community.
3. Register & Apply: The Admissions Team is here to assist you every step of the way. ISBasel enrols students throughout the year, dependent on space and fulfillment of entry requirements. They provide personalised support and guidance on documentation, application forms, and admission criteria. You can ask questions about the process and receive help with next steps as you prepare your dossier.
4. Documentation and join requirements: Complete all application forms; all documents must be in English or officially translated (submit both original and translation). Additional assessment outcomes may be required; the level of English proficiency and any student support needs will be reviewed. Availability of space in classes and option groups, sibling availability, and the Director's and Principal's discretion also influence admission decisions.
5. English proficiency and placement: Grade 6 and above require an online English test to determine proficiency, sometimes with an interview. Seniors may have a tailored curriculum if enrolled in external English programs, and they transition as language skills improve. ISB uses the CEFR framework to outline minimum English proficiency by grade: Grade 9 A2/B1; Grade 10 A2/B2; Grade 11 B1/B2; Grade 12 B1/B2 (Only for students currently in the IB Diploma Programme).
6. Student support: ISB provides tailored learning support for mild to moderate learning needs, with close collaboration with families to ensure proper placement and resources. Conditional enrolment may be offered with agreed services and extra costs. In rare cases where the school cannot meet a student's needs, a decision is explained and families are guided toward alternative options.
Admissions
Three steps are required for enrolment: schedule an appointment with the school headmistress; during an interview, all aspects of the curriculum and admissions are discussed, with the child present. The parents complete the enrolment application and send it to the secretariat and pay the enrolment fee, after which enrolment is confirmed. For primary school, motivation to learn in a multilingual environment is sought; for secondary school, candidates must pass entrance tests in French, Math, and German. Saint-Charles offers two high school streams, one in French and one bilingual French-English, both recognised by Swiss educational authorities. Appointments can be booked online or by contacting the school secretary. The admission process includes providing documents (school reports for the last two years, a letter of recommendation, and a color scan of the passport), an interview and admissions testing, and language assessments (IB Diploma: English Proficiency; Swiss Matura: English and French Proficiency) plus a Maths assessment. The Head of Admissions reviews applications and responds in roughly 10 days. Possible outcomes are admittance with a welcome package and visa procedures; provisional acceptance after a language-study period; waitlist; or non-acceptance.
Scholarships
Scholarships
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Scholarships
A scholarship fund for Jura-based students exists and allows residents of the canton to attend Saint-Charles. The school administration is available to answer questions in complete confidentiality.
Waitlist
Waitlist
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Waitlist
Waitlist: if there is no space in the desired program, a place on the waitlist may be offered until space becomes available.
