Security trustee (security agent)

BY MICHAEL SHANG · SIXTEEN YEARS IN COMMERCIAL BANKING · UPDATED 2026-11-06

// THE SHORT ANSWER

A security trustee holds the security for a group of lenders on trust for all of them, so that mortgages, general security and guarantees are granted once, in one name, rather than to each lender separately. When a lender sells its share of the loan, the security stays with the trustee and nothing has to be discharged and taken again. A security trust deed or intercreditor agreement sets who instructs the trustee, usually the majority lenders, and how recoveries are shared, often with hedge counterparties included. It is standard in syndicated and club lending in the UK, Australia and New Zealand, whose law recognises the trust.

BASIS  Practitioner judgment from sixteen years in commercial banking, set out in How Bankers Think (Highbank Press, 2026). Every borrower on this site is a composite constructed for teaching, not a client. The market is mid-market commercial lending as practised in New Zealand and Australia; where a convention differs elsewhere, the page says so.