Annual tuition at Okayama International School is ¥1,056,000 (JPY).

In addition to tuition, Okayama International School charges a registration fee of ¥163,000.

AIS Okayama admits children aged 1–5 across Infant, Toddler, Preschool, Pre-K, and Kindergarten classes. New students typically enrol in April, though mid-year entry is possible subject to vacancies. Families submit an application form with required documents and a recent photo. Applicants for Pre-K and above undergo a placement test and interview in English. Key criteria include age eligibility, class vacancies, English ability (for Pre-K+), prior school records, parental support, and the child's maturity and independence. Accepted families pay a one-time Enrollment Fee of ¥163,000 and an Annual Maintenance Fee of ¥89,000.

Okayama International School is located in Okayama, Japan.

Okayama International School accepts students from age 3 to 12.