International School of Luxembourg

Luxembourg

About International School of Luxembourg: The International School of Luxembourg (ISL) is an international school catering to students from early years to Grade 12. Located in the heart of Luxembourg City, it’s guided by the motto “Shaping Tomorrow. One Student At A Time”.

ISL is a not-for-profit school offering a robust English-language curriculum, including the full International Baccalaureate continuum and IGCSE, within a modern, well-resourced campus.

School Mission: To ensure that everyone in the school community becomes inspired, resilient and passionate about achieving what matters, anywhere in the world.

School Philosophy: The school believes knowledge and skills are essential to function successfully within both the community of the school and the multilingual, multicultural societies in which students live. The school provides students with the opportunity and motivates them to develop skills to become lifelong learners, enabling them to take responsibility for their own learning and well-being.

Head to the school’s website for further information about the school and job vacancies.

ITF Review
(Based on Independent Research)

Would you recommend this school to other teaching families?

Yes – it’s an attractive option for teaching families with an inclusive community and a high quality of life living in Luxembourg. But, the structure of taxable benefits does require careful financial planning. Salaries are competitive for Europe, but with taxes and housing costs it could be a stretch depending on your family situation.

Overall compensation package rating

The overall compensation package at ISL is strong, though many benefits are taxable which needs to be factored into your budget.
Teachers receive competitive salaries with automatic step increases and cost-of-living adjustments.

Tuition benefits

Based on our research the school offers 100% fee remission for up to two children per teacher. This is considered a taxable benefit under Luxembourg law.

Housing

Based on our research, the school doesn’t offer any housing allowance or assistance.

Flights

Flights to and from your home of record are provided at the beginning and end of your contract, with additional flights every two years for up to 10 years. These are a taxable benefit.

Healthcare

Teachers at are automatically enrolled in Luxembourg’s public health system. A small deduction from salary covers medical, dental, hospital, and prescription costs. Dependents living in Luxembourg are also included. Some teachers choose to add private insurance for extras (e.g. dental).

Adjustment for kids

There are approximately 1,300 students at the school which it claims are 100% international students.
With such a large, diverse international student body (55+ nationalities), and broad extracurricular options in sports, music, and arts, teachers kids should adjust well.

Average class sizes

Class sizes are small – with a maximum of 18 students across all year levels.

Teaching experience required

This school is for highly experienced teachers – ideally with at least five years experience. You’ll need a formal teaching qualification. The teaching staff is highly diverse – from around 30 different countries.

Curriculum

Along with the full IB programme, ISL also provides IGCSE/GCSE courses in the Upper School. Instruction is in English, with French starting in kindergarten and German and Spanish introduced later.

Retirement/pension benefits

The school offers a defined contribution supplementary pension plan through SwissLife. You’re eligible once you’ve completed 12 months employment. The school contributes 5% gross for each teacher. You can also choose to make additional contributions.

School history & stability

The school first opened in 1962 – with the first classes held around a dining room table.

International School of Luxembourg – Additional Benefits

  • Relocation allowance (start/end)
  • Laptop allowance
  • Language lesson allowance
  • Help with visas

What Teachers are Saying About International School of Luxembourg

The school feels very American compared to other international schools I’ve taught in. There isn’t a lot to do in Luxembourg, and from what I hear, families struggle due to the high cost of living.

EX INTERNATIONAL TEACHER AT ISL

There is no diversity in the leadership team, which is primarily made up of white males. There have also been instances of racism and toxicity.

EX TEACHER, ISL

Luxembourg is an amazing place to bring up children – and there is lots of child support and a big focus on family life.

EX TEACHER, ISL
  • Snow covered castle view in Luxembourg featuring a dramatic winter sunset and stone balcony - what you can expect if you work at the International School of The Hague
  • View from above of a small village in Luxembourg.
  • Charming autumn landscape in bourglinster-luxembourg - a site you can see if you work at the International School of Luxembourg.

Safety, Adaptability & Cost of Living

  • Safety: High – Luxembourg City is regarded as one of Europe’s safest capitals, with low crime rates and a calm, family-friendly atmosphere. Expat families often choose central districts such as Belair or Limpertsberg, or quieter residential areas like Strassen and Bertrange, all of which offer good housing options and green spaces.
  • Adaptability: Strong – With nearly half of its population made up of foreigners, Luxembourg has a highly international community, and English is widely spoken. The country’s multilingual culture (Luxembourgish, French, German, and English) makes it easy for families to integrate, while excellent healthcare, a compact city layout, and easy access to European destinations by train or car.
  • Cost of Living: Very High – Luxembourg is consistently ranked among the most expensive cities in Europe, with housing being the largest expense. Groceries and dining are also pricey, though the quality of services, infrastructure, and public transport is excellent. Many families feel the high costs are offset by the country’s safety, strong education options, and exceptional quality of life.

General Overview for Teaching Families

The International School of Luxembourg (ISL) is a well-established private international day school in Luxembourg City, serving students from Early Years through Grade 12. With over 1,300 students representing more than 50 nationalities, ISL provides a rich, diverse learning environment. The school offers the International Baccalaureate (PYP, MYP, DP) alongside IGCSE, with instruction in English and a strong emphasis on multilingualism and global citizenship.

ISL prides itself on its inclusive ethos and mission to “shape tomorrow, one student at a time.” The modern, well-equipped campus provides excellent facilities for academics, sports, and the arts, ensuring students benefit from a holistic education. Beyond academics, there is a wide co-curricular programme, leadership opportunities, and strong pastoral care to support student well-being.

For teachers, ISL offers competitive compensation for the region, with relocation support, professional development, and healthcare through Luxembourg’s highly regarded public system. The school is family-friendly, and Luxembourg itself is safe, cosmopolitan, and welcoming, with excellent infrastructure and a high standard of living.

Do you currently teach at ISL? Please get in touch to share your feedback or complete our teacher survey to tell us more.

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