Understanding the difference between private schools and international schools — and why the distinction matters for expat families choosing schools abroad.
Expat families often use 'private school' and 'international school' interchangeably, but they are not the same. Understanding the distinction matters because it affects the curriculum your child studies, the language of instruction, the student body composition, and the portability of qualifications. In many countries, private schools are independent fee-paying schools that follow the national curriculum in the local language. International schools are fee-paying schools that follow international curricula (British, IB, American) in English. An international school is always a private school, but a private school is not always international.
Language: International schools teach in English; private schools teach in the local language (with English as a subject). Curriculum: International schools follow British, IB, or American curricula; private schools follow the national curriculum. Student body: International schools have multinational student bodies; private schools are predominantly local. Qualifications: International schools offer globally recognised exams (IGCSEs, A-Levels, IB); private schools offer national qualifications. Portability: International school qualifications transfer seamlessly between countries; national qualifications may require equivalency assessments.
In some countries, top private schools offer exceptional education that surpasses international schools. In the UK, for instance, leading independent schools like Eton, Westminster, and Harrow offer outstanding education. In Singapore and the Netherlands, the local school system is world-class. For expat families settling long-term in a country with a strong private or state school system, local schooling — combined with language support — can provide deeper cultural integration and cost savings. However, for families who may move again, or whose children need English-medium instruction, international schools remain the more practical choice.
Some schools bridge the gap. In Thailand, bilingual private schools offer elements of both local and international education. Schools like Ambassador Bilingual School in Chiang Mai provide a Thai-English bilingual programme at lower fees than full international schools. In the UK, schools like Harrow have international campuses (including Harrow Bangkok) that bring the private school tradition to an international context. These hybrid options can be excellent for families seeking quality education with local cultural engagement.