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Oeiras International School

Portugal, Lisbon

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The school at a glance
Instructs in English
Fees €14,962 - 24,844
Ages 6 - 18 years
Pupil numbers 463
Type Co-educational
Opened 2010
Bus Service Yes
Availability Not shared by this school
Academic offering
Curriculum IB (PYP), IB (MYP), IB (DP)
Taught languages Portuguese, English, German, French, Spanish, Mandarin
Typical class size 16
Strengths Sport, Visual and Creative Arts, Languages
Clubs Academic and Intellectual, Arts and Creative, Leadership and Professional
Stages Primary School, Secondary School, Sixth Form
Introduction

Oeiras International School (OIS) is a non-profit, parent-founded International Baccalaureate World School offering a full IB Continuum for ages 6 to 18. The curriculum spans the Primary Years Programme (PYP) for ages 6 to 10, the Middle Years Programme (MYP) for ages 11 to 16, and the Diploma Programme (DP) for ages 17 to 18. The school is housed on the Quinta de Nossa Senhora da Conceição estate in Barcarena, Oeiras, a historic 17th‑century property with riverine and woodland spaces that support hands‑on learning. Facilities include the Palace library, science labs, art and music rooms, classrooms in the Pavilion and White/Orange Building, and on‑site sports amenities such as a swimming pool, basketball court, football pitch, and a multisport pavilion. The campus also runs social projects from its garden farms and offers diverse co‑curriculars, languages, MUN, and the Duke of Edinburgh award. Students graduate ready for university admissions and global citizenship.

ois.pt

R. Antero de Quental 7, 2730-013 Oeiras, Portugal

Vibes and Culture
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The Essentials

Oeiras International School has 463 pupils, typical class sizes of 16, instruction in English.

Location
Oeiras International School is located in Oeiras, Portugal, on land leased from the municipality. Oeiras is about 15 minutes by car from Lisbon and the Lisbon airport.

Stages
Primary Years Programme (Age 5-11), Middle Years Programme (Age 11-16), Diploma Programme (Age 16-19).

Type
Oeiras International School is a non-profit Association (OIS, ASFL) founded by parents and is an International Baccalaureate World School.

Pupil Nationality Mix
Nationalities represented: 48+.

Additional learning support
A learning support programme exists as part of OIS's inclusive IB World School approach. Applicants with severe emotional needs cannot be catered for.

School day structure
School buses arrive with students between 8:00am and 8:15am. Afternoon buses depart at 4:00pm and 5:30pm.

Bus service
The School runs its own bus routes from Cascais, Estoril, Sintra, Parede and the Lisbon area.
Diving Deeper
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Fees

Annual tuition at Oeiras International School ranges from EUR 14,962 to EUR 24,844 for 2026/27.

Application and Registration Fees
- Application fee (one-time, paid at application): €250.
- Registration fee (one‑time, payable on enrolment according to the schedule below): amounts vary by year group (see Tuition by year group). The registration charge is non‑refundable.

Tuition fees (per term and per year, by year group)
- Years 1–4 (Pre‑PYP and PYP 1, 2 & 3): Registration €1,355; Term €4,064; Annual €13,547.
- Year 5 (PYP 4): Registration €1,413; Term €4,238; Annual €14,127.
- Year 6 (PYP 5): Registration €1,683; Term €5,049; Annual €16,830.
- Years 7–9 (MYP 1, 2 & 3): Registration €1,799; Term €5,396; Annual €17,987.
- Years 10–11 (MYP 4 & 5): Registration €2,127; Term €6,382; Annual €21,273.
- Year 12 (DP 1): Registration €2,171; Term €6,514; Annual €21,713.
- Year 13 (DP 2 — two terms only): Registration €2,171; Term €9,771; Annual €21,713.

Additional one‑off and recurring fees
- Capital levy (one‑time, non‑refundable for new entrants): one new student €5,000; two siblings starting in the same year €7,500; three or more siblings starting in the same year €8,500. Current families enrolling a new student receive a 10% discount on the capital levy.
- Annual insurance per student: €20.
- Yearbook (per family): €40.
- Examination charges: Year 11 IB‑MYP assessment €900 (billed with Term II); Year 13 IB‑DP assessment €900 (billed with Term II).

Transport and Meals (charged separately, invoiced per term)
- School transportation (invoiced per term): one way €525; two ways €840.
- School meals (invoiced per term; price per meal): €6.30 per day (includes soup, salad, a main course, dessert/fruit and a low‑sugar drink).

Discounts and fines
- Sibling discounts on tuition term fees: second child 5%; third child 15%; fourth child and subsequent children 25%. Annual tuition paid in advance before the posted deadline receives a 2.5% discount (deadline is communicated by the school). Discounts apply only to term fees and are annulled if fees are not paid on schedule.
- Fines and charges: damaged or unreturned library books charged at replacement cost plus a 15% surcharge; lost team equipment €100; lost student card €5. Late payments incur legal taxes of 4% and may lead to suspension of services.

Billing schedule and payment terms
- Fees are invoiced by term. Payment deadlines: Registration by February 1; Term I by July 1; Term II by December 1; Term III by April 1. Termly fees are payable within 30 days of invoice. Further delay may result in suspension of services and legal late charges.

Refunds and withdrawal notice
- The registration charge is non‑refundable. Once registration is completed the student is deemed enrolled; if a registered student does not attend, Term I fees remain payable. The school requires one term's written notice to the Principal for withdrawal; without this notice the corresponding term fees remain due.

Boarding
- Boarding is not offered; the school operates as a day school.

Accepted payment methods and payment details
- Bank transfer (details provided by the school; ensure transfers are made net of bank charges and the student's name is given to allocate funds). IBAN and BIC/SWIFT details are used for euro payments.
- Payment by check is accepted (payable to Oeiras International School ASFL).

Other notes on fees
- Application fee is a one‑time mandatory administrative charge for applicants. Capital levy and registration charges are one‑time entry costs and are non‑refundable. Certain exam and event charges are billed with specific term invoices as noted above.
Academics

Oeiras International School teaches IB (PYP), IB (MYP), IB (DP) for students aged 6 to 18.

Curriculum
OIS offers the International Baccalaureate Continuum: Primary Years Programme (PYP) for ages 6 to 10 (PYP1 to PYP5), Middle Years Programme (MYP) for ages 11 to 16 (MYP1 to MYP5), and Diploma Programme (DP) for ages 17 to 18 (DP1, DP2). The school is an IB World School authorised to offer PYP, MYP and DP. PYP is an inquiry-based learning programme for children aged 6 to 10. MYP builds on prior learning and leads to the MYP certificate. The DP is internationally recognised for university admissions.

Student Teacher Ratio
1:6 teacher to student; average class size 16.

Exam Results
IB Diploma Results show high achievement. In 2021, 45 DP candidates with a 100% pass rate and an average DP grade of 5.6; OIS average points were 35, compared with a world average of 32.98. In 2020, 29 DP candidates with a 93% pass rate and an average grade of 5.12; OIS average points 32 versus world average 31.3.

Higher Education Progression
Graduates go to universities around the world, including notable destinations in the UK, the USA and other countries such as King's College London, University College London, Imperial College London, Stanford University, University of Chicago, McGill University, University of Toronto and the University of Auckland.
Wellbeing
The school has not added this information
Parent Experience
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Facilities
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Extra-Curricular Activities
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Languages
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Reputation
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Admissions

Admissions
Students aged 5 to 18 may be admitted, with OIS beginning in Year 2 (PYP1) for typically 6-year-olds. The school is over-subscribed in most year groups, so applying early is advised. A placement test assesses cognitive ability and learning style; there is no pass or fail mark, and staff determine whether they can support the student, with the Student Support Department assisting if extra help is needed. Priorities for admission are: first current students, staff and founding/associate members; second siblings of current students; other applicants are considered as space allows; under equal conditions, offers go to the student with the best previous academic record. There is a learning support program, but applications with severe emotional needs cannot be catered for. Documentation and an interview are required. OIS accepts applications throughout the year (Rolling Admissions) if space becomes available. English language requirements vary by grade; a minimum level is advised, fluency is not compulsory for admission to certain year groups, and full proficiency is required for Years 10–13 and will be assessed during admissions. The admissions steps are: register your interest; complete the application form and pay the €250 application fee; schedule placement tests; attend an interview with the programme coordinator; Admissions Committee reviews the application; upon successful completion, upload the required documentation and pay the registration fee to secure the place; if there is no space, the applicant will be placed on the waiting list.

Scholarships
The school offers scholarships for outstanding students. Scholarships may be awarded to students who live or study within the Oeiras area who otherwise may not have the opportunity to benefit from an OIS education. Scholarships are awarded on merit by the Scholarship Selection Council and are weighted by need, with partial or full scholarships possible. They cover all yearly registration and fees and required educational activities, with no other discounts applied. Open to students ranked in the top 10% of their year (Year 7 through Year 12) who live or study in the municipality of Oeiras. Ten full scholarships exist, and automatic yearly renewal is based on continued high academic achievement and significant involvement in wider school activities. The online application must be submitted by 14 March at 17:00 and includes: a letter from the applicant's parents in English or Portuguese, a short video in English outlining why they wish to join OIS, the applicant's Curriculum Vitae, reports from the previous three years including grades, three recommendation letters (one from Head Teacher/Principal and two from current teachers), and a declaration from the Head Teacher/Principal that the applicant is ranked in the top 10%. The Scholarship Selection Council is composed of one representative from Câmara Municipal de Oeiras (CMO) and at least three OIS representatives. Submissions deadline for Academic Year 2026/27 is Closed.

Waitlist
If there is no available place, the applicant will be placed on the waiting list.
School Events
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