Denmark, Sonderborg
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The school is located at Agervang 14, 6400 Sønderborg. The School, ASP, and Afternoon Club share this address on the Agervang campus. The campus is in Sønderborg, Denmark.
The school offers Kindergarten. The Cambridge Program provides primary through secondary education, including Cambridge Secondary 1 (11-14 years) and Cambridge Secondary 2 (14-16 years) with Cambridge IGCSE exams and Danish language exams.
The school is a private foundation known as The International School of Sønderborg.
The school is inclusive and focuses on the individual student. Learning supports English and Danish across reading, writing, listening, and speaking; by the end of primary and secondary programs students are expected to reach CEFR levels in both Danish and English, with language immersion programs for late entrants.
Denmark
Mon-Thu 08:00–15:00. Friday 08:00–14:30.
Application & registration fees
- Registration fee (one-off, non-refundable): DKK 600.
- Enrolment fee (one-off): DKK 2,500.
Tuition (school) fees — amount, billing and per-year calculation
- Monthly school fee (applies to day-school tuition): DKK 1,850 per child.
- Billing schedule: school fees are billed 11 times per school year; each payment is due in advance on the 1st of the month. Total annual tuition (11 payments): DKK 20,350 per child (DKK 1,850 × 11).
- Sibling discount: DKK 185 per month for the third child and onwards (applies from child number three).
After-school care, clubs and selected additional recurring charges
- After School Program (ASP) – monthly fee for Year 1–4: DKK 750.
- Holiday ASP – fee per week: DKK 500.
- Morning ASP (early care) — listed fee shown in the school's fee document.
- Afternoon Club / ASP for Years 5–10 — monthly fee shown in the school's fee document (DKK 750 listed in the current fee sheet).
One-off / other specified charges
- Safety equipment for science (Years 6–10): DKK 170.
- Yearly Parent-Teacher Committee (PTC) fee per child: DKK 175.
- Lost bus card: DKK 150.
- Administrative charge for failing to register for PBS (automatic payment service): an administrative charge (DKK 100 per payment) is applied if PBS is not used for collection.
Field trips and one-off activity costs
- Field trips are extra and budgeted by year group: maximum billed cost for a field trip should not exceed one monthly school fee for Years 1–6 and two monthly school fees for Years 7–10; field-trip costs are invoiced over two months where applicable.
Billing schedule and payment terms
- Frequency: fees are charged 11 times per school year and are due in advance on the 1st of each month. Families are urged to register for PBS (Denmark's automatic payment system) within six months of registration.
- Bank transfer details: the school provides bank account information (Broager Sparekasse) with Reg. No., Account No., IBAN and SWIFT for payment by bank transfer.
- If PBS is not used, an administrative charge applies; missed or late payments may incur reminder charges as listed in the school's published fee documents.
Boarding
- Boarding is not offered; the school operates as a day school with Kindergarten, After School Program and day-time curriculum only.
Uniforms and clothing costs
- There is no compulsory uniform fee item listed in the school's published fee documents and parent handbook; costs for personal clothing, sports kit or optional branded items are not specified as a compulsory fee in the school's fee schedule.
Refunds, withdrawal and related rules
- Registration fee: one-off and non-refundable.
- Withdrawal notice: parents must notify the school in writing; a minimum of one month's written notice at the end of a calendar month is required. School fees apply to the final month and the following month during the notice period. Official transcripts and transfer certificates are issued after de-registration procedures are completed and outstanding fees are paid.
Summary of common payment methods
- PBS (automatic direct-debit) — the school requests families sign up for PBS for automatic collection and applies administrative charges where PBS is not used.
- Bank transfer — IBAN and SWIFT details are published for direct bank payments to the school's account.
(Amounts are stated in Danish kroner: DKK. All recurring and one-off fees above are taken from the school's current published admission/registration and parent information documents.)
Sønderborg International School (SIS) is a Cambridge International School in Denmark offering a Cambridge-based path from Primary through Upper Secondary with a Nordic context. The campus serves pupils aged 3–16 across Primary (Year 1–4), Lower Secondary (Year 5–7) and Upper Secondary (Year 8–10). The curriculum blends Cambridge instruction with a bespoke Danish‑English program, small class sizes, and cross‑curricular learning that includes Forest School. In Upper Secondary, students pursue Cambridge IGCSE qualifications, studying English, Maths, Science, Global Perspectives, Danish, German, History and Business Studies, with Danish First Language available for native speakers. The school's Kindergarten, founded in 2016 in a private‑public partnership with Sønderborg Municipality, anchors early years in a wider community. Facilities include accessible academic spaces and opportunities to tour during Open School Day. Extracurriculars feature a Student Council, Career Week, and an After School Program, while Life Skills and experiential learning underpin daily education. A welcoming, globally aware community.