A Letter of Credit (L/C) is one of the most secure payment methods in international trade, providing protection for both buyers and sellers who may be thousands of miles apart and operating under different legal systems. For exporters shipping from Global, an L/C guarantees payment from the buyer's bank - provided the seller presents shipping documents that comply exactly with the terms specified in the credit. However, this security comes with strict documentary requirements, and even minor discrepancies can delay or prevent payment.

This comprehensive guide covers the L/C process from start to finish: how letters of credit work, bill of lading and shipping document requirements, the most common discrepancies that cause payment refusals, and practical strategies to ensure smooth L/C transactions. Whether you are a first-time exporter navigating your first L/C or an experienced trader looking to reduce discrepancies, this guide will help you manage L/C shipments with confidence.

What Is a Letter of Credit and How Does It Work?

A Letter of Credit is a written commitment by a bank (the issuing bank) on behalf of the buyer (applicant) to pay the seller (beneficiary) a specified amount, provided the seller presents documents that comply with the terms and conditions of the credit within a specified timeframe. The bank's obligation to pay is independent of the underlying sales contract - the bank pays against documents, not goods.

The L/C process involves the following parties and steps:

  • Applicant (Buyer): Requests the L/C from their bank and agrees to reimburse the bank
  • Issuing Bank: The buyer's bank that issues the L/C and commits to pay the seller
  • Advising Bank: The seller's bank that authenticates the L/C and forwards it to the seller
  • Beneficiary (Seller): The exporter who ships the goods and presents documents for payment
  • Confirming Bank (optional): A second bank that adds its payment guarantee, typically used when the issuing bank's country has political or economic risk
  • Negotiating Bank (optional): A bank that examines documents and pays the seller before reimbursement from the issuing bank

The L/C Transaction Flow

  1. Buyer and seller agree on L/C terms in the sales contract (L/C amount, required documents, latest shipping date, expiry date)
  2. Buyer applies to their bank (issuing bank) to open the L/C
  3. Issuing bank sends the L/C to the seller's bank (advising bank)
  4. Advising bank authenticates the L/C and notifies the seller
  5. Seller ships the goods and prepares all required documents
  6. Seller presents documents to the advising/negotiating bank
  7. Bank examines documents for compliance with L/C terms
  8. If documents are compliant, bank pays the seller and forwards documents to the issuing bank
  9. Issuing bank reimburses the paying bank and releases documents to the buyer
  10. Buyer uses documents to claim goods from customs and the carrier

Key Principle: Under UCP 600 (the Uniform Customs and Practice for Documentary Credits, the international rules governing L/Cs), banks deal with documents, not goods. The bank's examination is strictly documentary - if the documents match the L/C terms on their face, the bank must pay, regardless of the actual condition of the goods. Conversely, if the documents contain discrepancies, the bank may refuse payment even if the goods are perfect.

Types of Letters of Credit

Different L/C types serve different trade scenarios:

Irrevocable L/C

The standard L/C type. Once issued, it cannot be cancelled or amended without the consent of all parties (issuing bank, confirming bank if any, and beneficiary). All modern L/Cs are irrevocable under UCP 600 - revocable credits were eliminated in the 2007 revision.

Confirmed L/C

A second bank (usually in the seller's country) adds its own payment undertaking to the issuing bank's commitment. This provides double security - the seller can claim payment from the confirming bank even if the issuing bank defaults. Confirmation is recommended when the issuing bank is in a country with political, economic, or currency risk.

Transferable L/C

The beneficiary can transfer all or part of the L/C to a second beneficiary. This is commonly used by trading companies that act as intermediaries between the actual manufacturer and the buyer. The first beneficiary (trader) retains the difference between the L/C amount and the amount transferred to the second beneficiary (manufacturer).

Revolving L/C

The L/C is automatically reinstated after each drawing, up to a specified total amount or number of times. Useful for regular, recurring shipments between the same buyer and seller, as it avoids the cost of opening a new L/C for each shipment.

Standby L/C (SBLC)

A standby letter of credit functions as a guarantee rather than a primary payment mechanism. The seller ships on open account terms and only draws on the SBLC if the buyer fails to pay. SBLCs are increasingly used as an alternative to traditional L/Cs in established trade relationships.

Required Shipping Documents for L/C Transactions

The L/C specifies exactly which documents the seller must present. Each document must comply precisely with the L/C terms. Common required documents include:

Bill of Lading (B/L)

The most critical shipping document in an L/C transaction. The B/L must be:

  • Issued by the carrier or their agent (NVOCC B/Ls are acceptable if the NVOCC is named as carrier)
  • Consolidated as an "on board" B/L, indicating the goods have been loaded on the vessel
  • Consigned as specified in the L/C (to order, to order of the issuing bank, or to a named consignee)
  • Marked "freight prepaid" (for CIF/CFR) or "freight collect" (for FOB) as specified
  • Showing the notify party exactly as stated in the L/C
  • Dated on or before the latest shipment date specified in the L/C
  • Showing port of loading and port of discharge matching the L/C exactly
  • Showing goods description consistent with the L/C (does not need to be verbatim, but must not contradict)

Commercial Invoice

The invoice must show the seller and buyer as named in the L/C, the goods description matching the L/C, the price and total amount (not exceeding the L/C amount), and the Incoterms as specified. Any discrepancy between the invoice and the L/C description is a discrepancy.

Packing List

Detailed packing list showing quantity, gross weight, net weight, and dimensions of each package. Must be consistent with the B/L and commercial invoice regarding total quantities and weights.

Insurance Policy/Certificate

Required when the L/C specifies CIF or CIP terms. Must be issued by a reputable insurance company, cover at least 110% of the CIF/CIP value, cover the risks specified in the L/C (typically Institute Cargo Clauses A, B, or C), and be in the same currency as the L/C.

Certificate of Origin

Certifies the country of origin of the goods. May need to be issued by a chamber of commerce or customs authority. If the L/C requires a specific format (e.g., Form A for GSP, Form E for China-ASEAN FTA), the exact form must be used.

Inspection Certificate

Some L/Cs require a pre-shipment inspection certificate from a specified inspection agency (e.g., SGS, Intertek, or the buyer's representative). The certificate must confirm that the goods meet the specified quality and quantity standards.

Other Documents

Depending on the L/C, additional documents may include: phytosanitary certificate (for agricultural products), health certificate (for food products), Fumigation certificate (for wooden packaging), export license, and beneficiary's certificate confirming shipment details or compliance with L/C terms.

Common L/C Discrepancies and How to Avoid Them

Statistics show that 70-80% of L/C presentations contain discrepancies on first presentation. Discrepancies can delay payment by weeks and incur fees of $50-$200 per discrepancy. Here are the most common discrepancies and prevention strategies:

1. Late Shipment

Problem: The B/L date is after the latest shipment date specified in the L/C.

Prevention: Plan production and shipping schedules to meet the L/C deadline. If delays are unavoidable, request an amendment to extend the shipment date before the deadline passes.

2. Expired L/C

Problem: Documents are presented after the L/C expiry date or after the expiry date at the place of presentation.

Prevention: Note the expiry date and place prominently. Prepare and present documents well before expiry. Remember that the L/C expiry date is separate from the latest shipment date.

3. Goods Description Mismatch

Problem: The goods description on the invoice or B/L does not match the L/C. Even minor wording differences can be discrepancies.

Prevention: Copy the exact goods description from the L/C onto the invoice. On the B/L, use a general description that does not contradict the L/C.

4. Inconsistent Data Across Documents

Problem: Quantities, weights, values, or other data differ between documents (e.g., B/L shows 1,000 cartons but packing list shows 998 cartons).

Prevention: Use a document checklist to cross-verify all data across all documents before presentation. Have a second person review.

5. Missing or Incorrect Documents

Problem: A required document is missing, or the wrong document type is provided (e.g., the L/C requires a full set of original B/Ls but only copies are presented).

Prevention: Create a comprehensive document checklist from the L/C terms. Verify original vs. copy requirements. Count the number of originals required for each document.

6. Insurance Coverage Insufficient

Problem: Insurance covers less than 110% of CIF/CIP value, or does not cover the risks specified in the L/C, or is in the wrong currency.

Prevention: Review insurance requirements carefully. Ensure the insurance policy or certificate explicitly states the coverage percentage, risks covered, and currency.

7. Endorsement Issues

Problem: The B/L is not properly endorsed when required (e.g., "to order" B/Ls must be endorsed by the shipper).

Prevention: Ensure all required endorsements are completed before document presentation.

Best Practices for Smooth L/C Transactions

  • Review the L/C carefully upon receipt: Check every field against your sales contract. If any term is impossible to meet (e.g., an unrealistically short shipment deadline), request an amendment immediately
  • Keep L/C terms simple: When negotiating the sales contract, advocate for straightforward L/C terms - avoid over-specifying document requirements that create unnecessary discrepancy risks
  • Use experienced freight forwarders and banks: Your freight forwarder should understand L/C B/L requirements, and your bank should have a dedicated trade finance department for document examination
  • Prepare documents early: Start preparing documents as soon as the L/C is received, not after shipment. This allows time to correct any issues
  • Conduct a pre-presentation check: Before submitting documents to the bank, conduct a thorough compliance check using the L/C as your checklist
  • Communicate with your bank: If you are unsure about any L/C requirement, ask your trade finance department before presenting documents. It is easier to prevent a discrepancy than to fix one
  • Maintain a discrepancy log: Track all discrepancies encountered to identify patterns and improve future L/C handling

Key Takeaways for L/C Shipping

  • An L/C is a bank's independent commitment to pay against compliant documents - banks deal with documents, not goods
  • 70-80% of first presentations contain discrepancies, making document preparation critical
  • The Bill of Lading is the most scrutinized document - ensure B/L data matches L/C terms exactly
  • Late shipment and expired L/C are among the most common and most preventable discrepancies
  • Request L/C amendments immediately if any term cannot be met - do not wait until after shipment
  • Cross-verify all data across all documents before presentation - consistency is essential
  • Work with experienced trade finance banks and L/C-savvy freight forwarders to minimize discrepancies

Conclusion

Letters of credit remain the gold standard for secure payment in international trade, particularly for high-value transactions or when trading with new partners. While the strict documentary requirements can seem daunting, proper preparation and attention to detail can dramatically reduce discrepancy rates and ensure smooth, timely payment. By understanding the L/C process, preparing documents carefully, and working with experienced partners, exporters from Global can leverage L/Cs to expand into new markets with confidence.

SHAQ Logistics has extensive experience handling L/C shipments, from FCL ocean freight to air cargo and project logistics. Our team ensures that B/Ls and shipping documents comply with L/C requirements, helping exporters avoid discrepancies and receive payment on time. Contact us for expert L/C shipping support.