A debenture is a large one-off payment, on top of tuition, that a school asks for when your child takes up a place. Mostly it is the international and private independent schools that charge one, and the straightforward description is this: it works like an interest-free loan to the school, held for as long as your child is enrolled.
The amounts are set school by school, so the first useful thing to know is the scale. Three schools that publish their charges today:
Annual Capital Levy · Non-refundable and non-transferable. Every student must be covered by a debenture or this levy. school's page
Annual Capital Levy · Non-refundable; for students joining from the 2025-26 year. school's page
Capital levy + entry fee · Levy is billed per semester; the entry fee is charged once, to new students only. school's page
Reservation deposit · Payable on accepting a place, then offset against tuition. The school holds it, but it is not extra cost. school's page
Checked on the schools' own pages, 6 October 2026. These change year by year, so confirm your child's entry year with admissions.
The school invests it, builds with it, runs on it. When your child leaves, you ask for it back, and whether you get all of it, part of it, or none of it depends entirely on that school's written terms. Two schools can both say the word “debenture” and mean completely different financial commitments.
Which is why the word on its own does not tell you much. What matters is which kind of capital charge the letter is describing. And there are four.




