Sight vs Usance Letter of Credit: UCP 600 Guide
Sight vs Usance Letter of Credit: Complete Guide to Mechanics, UCP 600 Rules & Discounting Strategies
In cross-border trade, the timing of payment under a Letter of Credit is as important as the amount itself. The choice between a Sight LC and a Usance LC directly affects working-capital cycles, bank charges, and credit risk for both exporter and importer.
This guide explains the structural differences, the governing rules under ICC UCP 600, the mechanics of acceptance versus deferred-payment credits, practical discounting methods (including UPAS), and clear decision criteria for selecting the appropriate instrument.
1. What is a Sight Letter of Credit?
A Sight Letter of Credit is an irrevocable undertaking by the issuing bank to pay the beneficiary upon presentation of documents that strictly comply with the terms of the credit.
Under UCP 600 Article 14(b), each examining bank (nominated, confirming or issuing) has a maximum of five banking days following the day of presentation to determine compliance. Once compliance is established, payment is due at sight.
Key Characteristics
- Prompt liquidity: Exporter receives funds shortly after a complying presentation.
- Lower credit exposure: Payment depends on the bank’s undertaking and documentary compliance rather than the buyer’s subsequent solvency.
- Simpler handling: No acceptance formalities or deferred-interest calculations are required.
2. What is a Usance Letter of Credit?
A Usance Letter of Credit (also called a Term LC, Time LC or Deferred-Payment LC) provides for payment at a future maturity date after a complying presentation. Common tenors are 30, 60, 90 or 180 days; longer periods up to 360 days appear in certain commodity or project transactions.
The usance period is usually measured from one of the following events:
- Bill of Lading (or other transport document) date
- Date of presentation of complying documents
- Date of sight / acceptance of the draft
Acceptance LC vs Deferred-Payment LC
| Feature | Acceptance Letter of Credit | Deferred-Payment Letter of Credit |
|---|---|---|
| Bill of Exchange / Draft | Requires a time draft drawn by the beneficiary | No draft is required |
| Bank’s Obligation | Bank accepts the time draft, creating a negotiable instrument | Bank incurs a Deferred Payment Undertaking (DPU) to pay at maturity |
| Pre-maturity Financing | Accepted draft can be discounted or sold under negotiable-instrument law | Financed by assignment or purchase of the DPU (expressly authorised by UCP 600 Article 12(b) for nominated banks) |
3. Comparative Analysis: Sight vs Usance
| Comparison Point | Sight Letter of Credit | Usance Letter of Credit |
|---|---|---|
| Payment Timing | At sight after determination of compliance (max. 5 banking days examination) | On the stated maturity date (e.g., 90 or 180 days after B/L date) |
| Exporter Working Capital | Positive – rapid cash conversion | Negative unless the accepted draft or DPU is discounted |
| Importer Working Capital | Negative – funds required earlier in the cycle | Positive – time to receive, process and sell goods before settlement |
| Typical Bank Charges | Issuance, examination and advising fees | Higher – includes acceptance or deferred-payment commission plus financing margin if discounted |
| Discounting Possibility | Not applicable | High – accepted drafts and DPUs are routinely prepaid or purchased |
| Commercial Fit | Seller’s market, custom goods, higher-risk jurisdictions | Buyer’s market, commodities, competitive tenders, capital equipment |
4. Legal Framework under UCP 600
Most commercial letters of credit are subject to the ICC Uniform Customs and Practice for Documentary Credits (UCP 600).
- Article 7 – Issuing Bank Undertaking: The issuing bank is irrevocably bound to honour a complying presentation by paying at sight or on the maturity date, depending on the availability of the credit. The obligation is independent of the underlying sales contract.
- Article 8 – Confirming Bank Undertaking: A confirming bank adds its own independent, irrevocable commitment to honour or negotiate. This shifts country and issuing-bank risk to a trusted local or international bank.
- Article 12(b) – Nomination: Explicitly authorises a nominated bank that has accepted a draft or incurred a deferred-payment undertaking to prepay or purchase that draft or undertaking, providing the legal foundation for discounting.
- Articles 4 & 5: Banks deal with documents, not with goods, services or performance. Commercial disputes do not relieve the bank of its payment obligation in the absence of a court injunction based on fraud.
5. Usance LC Discounting and UPAS Structures
Exporters frequently face buyers who insist on 90- or 180-day terms. Discounting (or a UPAS – Usance Payable at Sight – arrangement) allows the seller to receive funds promptly while the buyer retains the agreed credit period.
Typical Discounting Process
- Exporter presents complying documents.
- Nominated or confirming bank accepts the time draft or incurs a Deferred Payment Undertaking stating the exact maturity date.
- Exporter requests prepayment / purchase of the accepted instrument or DPU.
- Discounting bank pays the net proceeds (face value less discount interest and fees) to the exporter, usually on a without-recourse basis if the bank is satisfied with the credit risk.
- At maturity the issuing bank pays the full face amount to the discounting bank and collects from the applicant.
Illustrative Calculation (USD, actual/360 basis)
Note: Day-count conventions vary by currency (actual/360 is standard for USD; actual/365 is common for GBP). Always confirm the basis used by the financing bank.
6. Risk Mitigation: Confirmation and Credit Enhancements
- Confirmed Usance LC: A first-class confirming bank adds its independent undertaking under Article 8, protecting the exporter against issuing-bank or country risk at maturity.
- Standby Letter of Credit (SBLC) support: An SBLC (often issued via SWIFT MT760) can serve as additional collateral or a back-up payment source if the primary usance obligation is not met.
7. Strategic Decision Guidelines
Prefer a Sight LC when:
- The exporter operates on tight margins and cannot absorb financing costs.
- The buyer or issuing bank is located in a higher-risk jurisdiction.
- Goods are custom-made with limited alternative markets.
- The seller has sufficient negotiating power to require prompt payment.
Prefer a Usance LC (or UPAS) when:
- Competitive market conditions require the offer of credit terms to win the order.
- The importer needs time to clear, process or resell the goods.
- The exporter has access to competitive discounting facilities.
- The structure forms part of a larger trade or project-finance arrangement.
Final Thoughts
Choosing between a sight letter of credit and a usance letter of credit is a strategic balance between risk mitigation and commercial flexibility. While sight LCs remain the gold standard for immediate supplier liquidity, usance structures—when augmented by UCP 600 rules, discounting facilities, and prime bank confirmation—enable traders to execute high-volume international transactions without straining capital balance sheets.
Mastering these instruments and coordinating their terms with issuing banks allows corporate developers and traders to expand market share while maintaining strict risk controls. For expert support in legal drafting, trade finance structuring, or coordinating SBLC and credit enhancement facilities, explore the main funding solutions hub.
Structuring Cross-Border Trade & Project Facilities?
Whether you are negotiating 180-day usance terms, arranging non-recourse bank discounting, or structuring Standby Letters of Credit (SBLC) via SWIFT MT760, our team provides comprehensive legal frameworks and bankability advice.
Frequently Asked Questions
Is a Usance LC riskier for the exporter than a Sight LC?
Without confirmation or discounting, yes—the exporter waits until maturity. Once the bank has accepted the draft or issued a DPU, buyer default risk is replaced by bank risk. A confirmed and/or non-recourse discounted usance LC carries a risk profile comparable to a sight payment.
What is the difference between standard Usance and UPAS?
Under a standard usance LC both parties settle at maturity. Under UPAS the credit is issued on a usance basis for the buyer, but a financing bank pays the seller at sight (or near sight) and is reimbursed by the issuing bank at maturity.
Can the issuing bank refuse payment at maturity because the buyer claims the goods are defective?
No. Under UCP 600 Articles 4 and 5, the credit is independent of the underlying contract. Banks examine documents only. Except in cases of proven fraud leading to a court injunction, the bank must honour a complying presentation at the stated maturity.
Who bears exchange-rate risk during the usance period?
The party whose functional currency differs from the LC currency bears the exposure. Importers commonly hedge with forward contracts when the local currency is expected to weaken against the settlement currency.
The content on this Blog is for general informational purposes only and does not constitute legal, financial, or investment advice. Reading this content does not create a solicitor-client or adviser-client relationship. Always consult a qualified professional before making any decisions based on the information provided.