Standby letter of credit (SBLC)

BY MICHAEL SHANG · SIXTEEN YEARS IN COMMERCIAL BANKING · UPDATED 2026-11-01

// THE SHORT ANSWER

A standby letter of credit is a guarantee written in the form of a letter of credit: payable when the beneficiary presents a document stating that the bank's customer has not paid or performed, rather than on shipping documents. It does a guarantee's work, and it is common in markets where banks were historically restricted from issuing guarantees, and across borders where the beneficiary wants the international rules that govern letters of credit. For the bank that issues it the exposure is the same as a guarantee's — contingent until called, then a loan to its customer.

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.