No regulator, no ratings — just accreditation. Learn to read it.

Scale: 200-plus schools, Tokyo-heavy. ISC Research counts 218 international schools across Japan. Tokyo holds the deepest bench — and the longest waitlists: one to four years at popular grades at the best-known schools, against a reported 0-12 months in Kansai. ↗

“Officially recognised” is a short list. In October 2025 the Tokyo Metropolitan Government launched an official portal for international schools — and listed just 17 at launch. The bar: kakushu gakko approval, at least one MEXT-recognised international accreditation, and metro government sign-off. The gap between 17 and the number of schools marketing themselves as “international” is the single best illustration of why verification matters here. ↗

The price of entry is front-loaded. One-time entry fees — application, registration, building or development charges — range from ¥800,000 to over ¥2 million per child at Tokyo schools, before tuition. ASIJ’s one-time stack totals about ¥1.88 million plus an annual capital assessment. Model year one and steady state separately. ↗

Employer support has a Japanese wrinkle. Some corporate employers use the Corporate Contribution Program (CCP), which offers tax advantages when covering school fees for expat employees — worth raising in package negotiations before you absorb a ¥3 million tuition line yourself. ↗

Most international schools in Japan are licensed as kakushu gakko — “miscellaneous schools” under the School Education Act, the category that also covers vocational schools. They sit outside the Article 1 school system, outside MEXT’s curricular jurisdiction, and receive no government subsidies. A minority take Article 1 status (gakkō hōjin) or run as Japanese private schools with international tracks. ↗

What MEXT does control: university entrance. The ministry designates certain international schools as equivalent to Japanese senior high schools, and universities accept graduates of schools accredited by WASC, CIS, ACSI, NEASC, Cognia or COBIS — the six names to memorise. If your child might apply to a Japanese university, check the school’s status on both lists before enrolling. ↗

The practical filter: since no inspectorate grades these schools, accreditation is not a nice-to-have — it is the only external quality review the school has ever faced. Ask which accreditor, when the last full visit was, and what the report said. A school that hesitates is answering.

Japan’s international-school DNA is American: ASIJ (1902) and Canadian Academy (1913) built the sector on US curricula, and long-established names like Seisen still serve Tokyo today. The British offer is newer and smaller — the British School in Tokyo and Malvern College Tokyo, which opened in September 2023 as Japan’s first all-through IB British-branded school and extends to Year 13 by 2026. The IB is the common currency: even the American anchors lean on it, and much of the newer wave of schools is IB-first. ↗

Curriculum choice drives portability to the next posting — our IB vs British vs American guide walks the trade-offs. Japan’s twist: because schools sit outside the national system, nothing forces Japanese language into the timetable — if immersion matters to your family, ask exactly how many hours a week it gets.

The anchors, tuition plus the charges that move year one:

• ASIJ (American, Chofu): published tuition of ¥3,143,000 (Nursery-Pre-K) to ¥3,826,000 (Grades 9-12), plus one-time fees of ¥50,000 application, ¥300,000 registration and ¥1,525,000 building maintenance, an annual ¥250,000 capital assessment and a ¥390,000 bus fee. ↗
• The British School in Tokyo: 2025-26 tuition of ¥2,820,000-3,030,000, plus ¥40,000 application, ¥500,000 enrolment, a ¥680,000 one-time resources fee and ¥100,000 annual capital levy.
• Nishimachi (K-9, Moto-Azabu): ¥3,129,000 tuition plus ¥400,000 in annual enhancement/growth fees; one-time fees of ¥30,000, ¥300,000 and ¥825,000. ↗
• Malvern College Tokyo (IB, Kodaira): one-time fees of ¥22,000 + ¥300,000 + ¥700,000, an annual ¥250,000 capital assessment, and bus fees of ¥433,750-465,750 on central-Tokyo routes.

By tier: mid-range schools (Seisen, K. International, Sacred Heart, Nishimachi) run roughly ¥1.7-3.2 million a year; the premium names (ASIJ, BST, St Mary’s, Tokyo International School) ¥2.2-4.5 million. Extras — bus ¥200,000-400,000, lunch ¥150,000-300,000, activity and technology fees — sit on top.

Kobe holds Japan’s boarding option. Canadian Academy (founded 1913, Rokkō Island) is MEXT-approved, WASC+CIS-accredited, runs the full IB continuum alongside a US diploma, and boards — with about 630 students of 35 nationalities. Marist Brothers and St Michael’s round out a genuine Kobe bench. ↗

Osaka’s anchor is the Senri campus. Osaka International School operates as “Two Schools Together” with Senri International, offering the IB PYP/MYP/DP at listed fees of roughly ¥1.84-2.31 million — well below Tokyo premium — with reported waitlists of 0-12 months rather than years. Kyoto International School adds a smaller community option nearby. ↗

Fukuoka is the affordability outlier. Fukuoka International School offers IB programmes at a listed ¥1.58-1.94 million a year — among the lowest for an established international school in Japan — in a city marketing itself hard to internationally mobile families. Regional schools (Hokkaido International in Sapporo, Tohoku International in Sendai, Nagoya International, Hiroshima International) mostly charge ¥1.2-1.9 million. Confirm current schedules with admissions — regional fee pages move often. ↗

Every fee figure, statistic and policy claim above traces to our research dossier. Primary sources: the University of Tsukuba’s official admissions guidelines (MEXT designation and recognised accreditations), the Japan Council of International Schools, and school fee schedules from ASIJ, Nishimachi and Malvern College Tokyo. Secondary reporting: SDSU Digital Collections (kakushu gakko status, ISC Research count), the Asia Pacific Foundation of Canada, Housing Japan, and regional expat guides attributed as reported experience.

Fees and policies expire. This page was researched on 2 September 2026 and is re-verified each academic year — see our research standard for how claims are graded, and corrections if you spot something stale.