SBLC vs LC: SWIFT message types for trade finance

Trade Finance By Adam Scott · Published 2026-05-22 · Updated 2026-05-22

Both standby letters of credit (SBLCs) and commercial letters of credit (LCs) are bank undertakings of conditional payment. The legal triggers, rulebooks and SWIFT message types differ — and confusing them creates expensive operational errors.

Commercial LC: pays against presentation of trade documents (bill of lading, invoice, etc.) — proactive payment for goods or services delivered. Governed by UCP 600. Issued via SWIFT MT700.

Standby LC: pays only on default — beneficiary calls under the SBLC when applicant fails to perform an underlying obligation. Like a guarantee. Governed by ISP98 (or sometimes UCP 600 with adaptation). Issued via SWIFT MT760.

Demand guarantee: similar to SBLC but typically governed by URDG 758. Also issued via SWIFT MT760. The choice between SBLC and demand guarantee is often jurisdictional preference — US favours SBLC, Europe favours demand guarantees.

Message type matrix: MT700 = commercial LC issuance. MT707 = LC amendment. MT720 = transfer to second beneficiary. MT734 = refusal of presented documents. MT740 = authorization to reimburse. MT760 = SBLC or guarantee issuance. MT767 = MT760 amendment.

For accounting purposes, commercial LCs are usually off-balance-sheet contingent liabilities for the applicant until drawn. SBLCs similarly. Confirmed by issuing bank under credit limits.

For tracking, none of these go through GPI. Banks track via bilateral confirmations and internal trade-finance systems.

Key takeaways

Frequently asked questions

Which is more expensive — LC or SBLC?

SBLCs typically have lower commitment fees because they only pay on default (lower expected utilisation). Commercial LCs cost more because actual drawing is expected.

Can an SBLC be drawn fraudulently?

In rare cases yes — usually requires court action by the applicant. Most jurisdictions have a "manifest fraud" exception to strict compliance.

How long do SBLCs run?

Typically 1 year, often auto-renewing with evergreen clauses requiring notice to terminate.

Are SBLCs traceable on Ohmyfin?

No — Ohmyfin tracks customer credit transfers (MT103). SBLC issuance (MT760) is a different category. Your bank can confirm.

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