Short answer
A standby letter of credit (SBLC) is a bank’s independent, irrevocable undertaking to pay a beneficiary if the applicant fails to perform, against a demand and the documents stated in the standby. Unlike a commercial LC, it is meant as a safety net and is normally not drawn. Most SBLCs are issued subject to the ICC’s ISP98 rules.
Key points
- An SBLC secures performance or payment: it is drawn only if something goes wrong.
- A drawing usually requires a written demand and a statement that the applicant has defaulted, plus any other document the standby lists.
- ISP98 was written for standbys; UCP 600 can also apply, and URDG 758 is used for some standbys, but the rules chosen change the outcome on several points.
- Since SWIFT’s 2020 standards release, standbys are issued by MT760, with MT767 for amendments and MT765 for demands.
- Pricing depends on the applicant’s credit, collateral, tenor, amount and country risk; there is no standard price.
- A bank issues an SBLC for its own customer’s real obligation. SBLCs offered for “lease” or as investment products are flagged as scams by regulators.
What is a standby letter of credit?
A standby letter of credit (SBLC or SLC) is a written undertaking by a bank (the issuer), given at the request of its customer (the applicant), to pay a beneficiary up to a stated amount when the beneficiary presents a demand and the documents required by the standby.
The difference with a commercial letter of credit lies in its purpose. A commercial LC is the normal way the seller gets paid. A standby is a back-up: it pays only if the applicant does not pay or does not perform. If the underlying contract goes as planned, the standby simply expires.
Like other independent undertakings, a standby is separate from the contract it supports. The issuer examines the documents presented, not whether the applicant actually defaulted. The instrument developed in the United States, where banks were historically restricted from issuing guarantees, and it is now used worldwide as a functional equivalent of a demand guarantee. The LC vs SBLC vs bank guarantee comparison sets the three side by side.
How is an SBLC drawn?
The standby states what the beneficiary must present. Typically:
- a signed demand for payment, stating the amount claimed;
- a statement that the applicant has failed to pay or perform under the identified contract;
- any additional documents required, for example a copy of an unpaid invoice or a notice of default sent to the applicant.
The demand is presented to the issuer, or to a confirmer if there is one, at the place and in the form (paper or electronic) stated, before expiry. Between banks, a demand may be sent by SWIFT MT765. The issuer checks the presentation on its face. Under ISP98, notice of dishonour must be given within a time that is not unreasonable: notice within three business days is deemed not unreasonable, and beyond seven business days it is deemed unreasonable.
Example (illustrative): a supplier in Germany sells components on 90-day open account terms to a manufacturer in Morocco. Instead of an LC for each shipment, the buyer’s bank issues a standby in the supplier’s favour for an agreed maximum amount, subject to ISP98. If an invoice remains unpaid at maturity, the supplier presents a demand, a statement of non-payment and a copy of the invoice, and is paid by the bank. If the buyer pays every invoice on time, the standby expires unused.
ISP98 or UCP 600: which rules apply to a standby?
A standby must state the rules it is subject to. ISP98 (International Standby Practices, ICC Publication No. 590) was drafted specifically for standbys and has applied since 1 January 1999. UCP 600 also covers standbys “to the extent applicable”, but it was written for commercial credits. Some standbys, especially outside the United States, are issued subject to URDG 758.
| Point | ISP98 | UCP 600 |
|---|---|---|
| Designed for | Standbys only | Commercial documentary credits, applied to standbys where relevant |
| Time to examine or refuse | Notice of dishonour within a time not unreasonable: within three business days is not unreasonable, over seven is unreasonable | Maximum of five banking days following the day of presentation |
| Original documents | Copies generally acceptable, other than the demand itself, unless the standby requires originals | Originals required unless the credit allows otherwise |
| Place of presentation closed on the last day | Expiry extended to 30 calendar days after the place reopens, unless the standby provides otherwise | No extension when the bank is closed by force majeure |
| Transfer | Transferable standbys are transferred in their entirety | Partial transfer possible under a transferable credit |
What is an SBLC used for?
- Payment (financial) standby: secures the applicant’s obligation to pay money, for example a supplier’s open-account sales or a lease.
- Performance standby: secures completion of a contract or delivery of goods or services.
- Advance payment standby: secures repayment of an advance if the supplier does not perform.
- Bid (tender) standby: secures a bidder’s commitment to sign the contract if awarded.
- Counter standby: supports a local guarantee or standby issued by another bank in the beneficiary’s country.
- Security for a credit facility: a standby issued in favour of a lender, which then extends a loan to the applicant or to a related company. This is the legitimate core behind the term “monetization”, explained in our SBLC monetization guide.
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Discuss your transactionWhat should an SBLC’s wording and validity look like?
Most disputes over standbys come from wording. A complete text usually states:
- the issuer, applicant and beneficiary, with full names and addresses;
- the underlying contract or obligation being supported;
- the maximum amount, the currency and any reduction mechanism;
- the documents required for a drawing, worded so they can be produced by the beneficiary alone where that is the intention;
- whether partial and multiple drawings are allowed (ISP98 allows them unless the standby says otherwise);
- the place and form of presentation, and the expiry date;
- any automatic extension clause and the notice period for non-extension;
- the applicable rules (ISP98, UCP 600 or URDG 758) and, where relevant, the governing law and jurisdiction;
- who bears charges.
In the MT760, field 40C states the applicable rules. Amendments travel by MT767 and need the beneficiary’s consent to be binding on it.
A standby has an expiry date or an expiry event, chosen to cover the contract period plus a margin for presenting a demand. Many standbys covering ongoing obligations carry an automatic extension (often called “evergreen”) clause: the standby renews for successive periods unless the issuer gives notice of non-extension a stated number of days before expiry. Such notices often entitle the beneficiary to draw, so the clause needs careful drafting by both sides.
What drives the cost of an SBLC?
Banks usually quote a commission as a percentage per year or per quarter of the amount, plus fixed fees for issuance, amendment and any confirmation. The level depends on the applicant’s creditworthiness and existing relationship with the bank, the collateral or cash margin provided, the tenor, the amount, the country risk of the parties and the risk in the wording. No responsible party can quote a firm price before the bank has reviewed the applicant. See our guide to LC and SBLC costs for the components.
What an SBLC is not
An SBLC is not an asset that can be bought, rented or traded for profit. Banks issue standbys for their own customers, to secure a real obligation towards an identified beneficiary, after credit approval. Offers to “lease” an SBLC to an unrelated party, or to place one in a “trading programme” with guaranteed returns, are described by the US SEC as “prime bank” schemes. A free-format MT799 is not an SBLC either. Our guide to leased SBLCs and bank guarantees lists the red flags.
How Star Alliance helps with standby letters of credit
Star Alliance Consulting reviews the obligation the standby must secure, prepares the file and a proposed wording under the appropriate rules, and coordinates with the applicant, the beneficiary and the issuing institution. We do not issue, sell or lease instruments, and the decision to issue rests with the bank. Details are on our standby letters of credit page.
Frequently asked questions
Is an SBLC the same as a bank guarantee?
They serve the same function and are both independent of the underlying contract. The main differences are the rules (ISP98 for most standbys, URDG 758 for most demand guarantees), the legal tradition and the market where each is preferred.
Can a beneficiary draw on an SBLC without proof of default?
The issuer pays against the documents listed in the standby, typically a demand and a statement of default. It does not investigate whether the default occurred. That is why the wording and the choice of beneficiary matter.
Which SWIFT message is used to issue an SBLC?
The MT760. Since the 2020 standards release, standbys and guarantees may no longer be issued by MT700. Amendments use MT767 and demands may be sent by MT765.
Can I obtain an SBLC without collateral?
It depends on your relationship and credit standing with the bank. Banks issue standbys under a credit line, against collateral or a cash margin, or a combination. The bank decides.
Can an SBLC be leased or rented?
Not legitimately. Banks issue standbys for their own customers’ obligations. Leasing offers are a recognised fraud pattern; see our guide to trade finance fraud red flags.
Sources
Star Alliance Consulting editorial team · Updated 31 October 2026