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Tsukuba International School — Ibaraki's Only Full IB Continuum, With DP Authorised in 2017

Ibaraki, Japan

Founded in 1992 by Tsukuba's international research-community population — reportedly Ibaraki Prefecture's only full IB continuum school.

Researched by William Prep from published sources. Not yet verified by the school. — Last reviewed by William Prep: 2026-09-24

TIS was reportedly founded in 1992 to meet the English-education needs of Tsukuba's international research-community population. Reportedly Ibaraki Prefecture's only full IB continuum school (PYP/MYP/DP), with authorisation arriving in stages: PYP (2011) → MYP (2014) → DP (2017).

At a Glance

Founded	1992 (not independently confirmed)as of: 2026-09-24
IB Authorisation Timeline	PYP (2011) → MYP (2014) → DP (2017) (not independently confirmed)as of: 2026-09-24
Standing	Reportedly Ibaraki Prefecture's only full IB continuum school (not independently confirmed)as of: 2026-09-24
Est. First-Year Cost	≈¥2.33M (not independently confirmed)2026-27 · as of: 2026-09-24

A "Later DP" Pattern, Similar to FIS

TIS's authorisation order (PYP first, DP last) runs opposite to Fukuoka International School's (DP first, PYP later) — researched in an earlier batch — but both share the common thread of having become full continuum schools relatively recently. With DP authorised in 2017, TIS's Diploma track record is still under a decade old.

William Prep’s Analysis

"Ibaraki's only full IB continuum school" sounds like a strong selling point, but it also reflects a lack of geographic alternatives. With no other option nearby and the DP's track record still being built, that combination is worth weighing carefully rather than reading only as reassurance.

Fees: A Reported First-Year Total of About ¥2.33M

Third-party sources report 2026-27 fees of a ¥20,000 application fee and ¥300,000 registration fee as one-time charges, plus an annual ¥210,000 facilities fee, ¥240,000 materials fee, and ¥1,560,000 tuition, totalling roughly ¥2,330,000 for the first year. Discounts are reported for lump-sum payment (¥90,000), younger siblings (¥240,000), and Tsukuba-based researcher families, but none of these figures were confirmed against the school's own site (tis.ac.jp) directly this session.

University Entrance Eligibility in Japan

School-accreditation route	No not publicly confirmedWhether TIS holds any of the six MEXT-recognised accreditations was not confirmed this session.
Student-qualification route (IB, etc.)	Yes

Whether TIS itself holds a MEXT-recognised accreditation was not confirmed this session. The DP was only authorised in 2017, so its track record is still relatively young. A student completing the full IB Diploma qualifies via the individual-credential route regardless.

Fees & Estimated First-Year Cost

academic year: 2026-27

Application Fee	¥20,000(not independently confirmed)
Registration Fee	¥300,000(not independently confirmed)
Facilities Fee (annual)	¥210,000(not independently confirmed)
Materials Fee (annual)	¥240,000(not independently confirmed)
Tuition (annual)	¥1,560,000(not independently confirmed)
Estimated First-Year Total	¥2,330,000

Includes: application, registration, facilities, other, tuition — Excludes: Excludes the lump-sum payment discount (¥90,000), younger-sibling discount (¥240,000), and the Tsukuba-researcher-family discount (only for eligible families). Not confirmed against the school's own primary document directly this session.

What Makes This School Distinctive

Reportedly Ibaraki Prefecture's only full IB continuum school

Founded 1992 by Tsukuba's international research-community population

PYP, MYP, and DP authorisation years are reported in sequence.

No geographic alternative exists for families in Ibaraki seeking a full IB continuum.

Admissions

Cycle

未確認 not publicly confirmed

What Japanese Families Should Know

Who Might Find This School a Good Fit

Might suit — Families near Tsukuba (including researcher families) seeking IB education

Might not suit — Families prioritizing a long-established DP track record (the DP here is under a decade old)

William Prep’s Analysis

What researching TIS confirmed is that being "the only option" doesn't automatically mean being "the most established option." Geographic exclusivity and programme track record are separate axes worth evaluating independently, not conflating.

Questions to Ask the School

1.Can the 2026-27 fees be confirmed on the school's own site?
Why this matters: Only third-party figures were found this session.
2.What are the outcomes for students who have gone through the DP since its 2017 authorisation?
Why this matters: Not confirmed this session.

Sources & Verification

Search synthesis on Tsukuba International School fees and IB timeline — Multiple (search aggregation, incl. tis.ac.jp via search)third-party source · as of: 2026-09-24Founded 1992 by the foreign community in Tsukuba. Reportedly the only full IB continuum school in Ibaraki Prefecture: PYP authorised 2011, MYP 2014, DP 2017. 2026-27 fees reported: application ¥20,000, registration ¥300,000 (one-time), tuition ¥1,560,000/yr, facilities ¥210,000/yr, materials ¥240,000/yr. Discounts reported for lump-sum payment, younger siblings, and children of Tsukuba-based researchers. Not independently confirmed against tis.ac.jp's own fee page directly this session.
大学入学資格について — 文部科学省 (MEXT)official source · as of: 2026-09-23Sets out the routes to 大学入学資格: MEXT-designated schools; graduates of 12-year programmes at institutions accredited by WASC, CIS, ACSI, NEASC, Cognia or COBIS; holders of the IB Diploma, Abitur, Baccalauréat, GCE A-Level, International A-Level or European Baccalaureate; 高等学校卒業程度認定試験 (age-18 gated); and individual university review at 18+.

Last reviewed by William Prep: 2026-09-24

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