International School Tuition in Seoul 2026: Annual Fees by Grade, Application Fee, and Why Tuition Alone Is Not the Total Cost
Bottom line: Seoul international schools charge an application fee and a registration deposit on top of tuition, and annual tuition climbs as the grade level rises. Even when your company covers tuition, missing the admissions window can mean a long wait list — so once a posting is set, check the application timing and wait list before you even look at the tuition number.
If you didn't know: According to education-cost comparison sites, Korea International School (KIS) Seoul's annual tuition rises from about KRW 19.5 million for pre/junior kindergarten to about KRW 27.74 million for grades 9-12. On top of that comes a separate KRW 400,000 registration fee, a one-time KRW 4,000,000 entrance fee due only on first admission, and a KRW 200,000 deposit — budget only for tuition and you'll miss at least KRW 4.6 million in first-year extras.
Annual tuition by grade (per education-comparison sites) — pre/junior kindergarten approx. KRW 19.5 million · K-grade 5 approx. KRW 21.95 million · grades 6-8 approx. KRW 23.88 million · grades 9-12 approx. KRW 27.74 million · Separate one-time/annual costs — KRW 400,000 registration fee · KRW 4,000,000 entrance fee (first admission only) · KRW 200,000 deposit · Still unconfirmed — bus and meal fees vary too widely across schools and sources to confirm in this check · Foreign-school admission eligibility — typically requires at least one parent to hold foreign nationality or meet an overseas-residence requirement that varies by school (check the school's own admissions policy)
Education-cost comparison sites Schoozy and Tutopiya, publishing 2025-2027 school-year figures, list Korea International School (KIS) Seoul's annual tuition at roughly KRW 19.5 million for pre/junior kindergarten, KRW 21.95 million for K-5, KRW 23.88 million for grades 6-8, and KRW 27.74 million for grades 9-12, with a separate KRW 400,000 registration fee, a one-time KRW 4,000,000 entrance fee due only on first admission, and a KRW 200,000 deposit. The two sites disagree on figures for other Seoul international schools, so this check could not confirm official numbers across the board. Bus and meal fees also varied too much between sources to be presented as confirmed official figures. Foreign-school admission eligibility differs by school, so confirm each school's own admissions policy and relevant education-office guidance before applying. This was checked on 2026-10-31 against both comparison sites' published figures, which may differ from each school's own official site.
This article summarizes official guidance and is not legal, medical, or financial advice.
Journey stage: During the trip · Verified 2026-10-31
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