Using data provided by the Council of International Schools and a literature review to contextualize the subject, this article examines the topic of international school finance. It is suggested that postgraduate programmes are not doing enough to supply financial training for teachers turned administrators, and that a lack of understanding of school finance could be leading to at least four serious and fundamental misconceptions of the nature of international school finance. Administrators are encouraged to develop financial competencies to ensure key decisions are not delegated to non-educators. (Contains 3 tables and 1 figure.)