How a Letter of Credit Works: Complete Guide for Importers & Exporters

In business, a letter of credit (LC) issued by a bank plays a crucial role in building trust and enabling trade even when the buyer lacks immediate funds. It is especially valuable in international import and export transactions, where the buyer and seller may not have an established relationship.

When a bank issues an LC, the seller receives a formal guarantee of payment, which allows the buyer to obtain goods on credit. Below is a clear explanation of what a letter of credit is, how it works, the main types, how to apply, and answers to common questions.

Letter of Credit Meaning

A letter of credit (LC) is a bank-issued document that guarantees the seller will receive payment in full and on time, provided the seller complies with the terms and presents the required documents. If the buyer fails to pay, the issuing bank becomes responsible for the payment. Because of this assurance, LCs are widely used in cross-border trade and transactions between unfamiliar parties.

How Does a Letter of Credit Work?

When a bank issues an LC, it commits to pay the seller once the seller presents the stipulated documentary evidence—such as invoices, transport documents, and certificates of origin—demonstrating that goods have been shipped or services delivered. The issuing bank essentially takes on the buyer’s payment obligation.

If the buyer cannot pay immediately, the bank may provide a line of credit or enter into a loan arrangement with the buyer. The seller is paid by the issuing bank or by a nominated bank; if the LC is transferable, the seller can nominate a third party to receive payment. Obtaining an LC typically requires the buyer to provide collateral and to pay document fees. Because LCs are negotiable instruments, payment can flow through banks in different countries according to the terms specified in the credit.

Types of Letters of Credit

Banks issue several types of letters of credit to match different trade needs. Common varieties include:

  • Credit on Sight: The seller receives payment immediately upon presenting the required documents.
  • Standby Letter of Credit: This functions as a backup guarantee—banks pay only if the buyer fails to fulfill the payment obligation.
  • Time Credit: Also called usance credit; the payment is made after a specified period following shipment or document presentation.
  • Revocable Credit: The issuing bank can amend or cancel the credit at any time without prior notice to beneficiaries.
  • Irrevocable Credit: This credit cannot be altered or canceled without the agreement of all parties involved, offering greater security to the seller.

How to Apply for a Letter of Credit?

Applying for an LC involves a few standard steps. Follow these to start the process:

  • Step 1: Select a bank experienced in trade finance and with a strong correspondent network relevant to your trading partners.
  • Step 2: Prepare and submit the necessary documents that support the sales contract—commercial invoices, shipping details, packing lists, insurance, and any certificates required by the buyer or destination country.
  • Step 3: Complete the bank’s LC application form, specifying the credit type, amount, expiry date, and documentary conditions.
  • Step 4: Pay the applicable fees for issuance and processing, and provide any collateral or guarantees the bank requests. Await the bank’s approval and issuance of the LC.

Negotiate the terms of both the sales contract and the LC carefully to ensure documentary requirements are practical and achievable. Clear, precise terms reduce the risk of discrepancies that could delay payment. Choose a bank with proven experience in international trade and letters of credit to streamline processing and reduce friction.

Understanding the features of a letter of credit helps businesses secure timely and reliable payment. If immediate funding is needed for operational or growth needs, alternatives such as a personal loan may be considered. Evaluate financing options based on cost, speed, and documentation requirements to choose what best fits your situation.

FAQs on Letter of Credit (LC)

Why is it called a letter of credit?

It is called a letter of credit because it is a formal written commitment from a bank that assures the seller of payment—essentially extending the bank’s credit to cover the buyer’s obligation. The document serves as proof that the seller can rely on the bank’s creditworthiness to receive payment.

What is the difference between LC and BG?

A letter of credit (LC) guarantees payment to the seller for goods or services upon presentation of specified documents. A bank guarantee (BG) is a promise that the bank will pay the beneficiary if the client fails to meet contractual obligations. While both provide financial assurance, LCs are primarily used in trade transactions to secure payment for shipments, whereas bank guarantees are commonly used in construction, infrastructure, and real estate to back performance or contract fulfillment.

What is the process of LC?

The LC process typically starts with the buyer applying to a bank for the credit. The buyer supplies required documentation, and the issuing bank evaluates creditworthiness and collateral before issuing the LC in favor of the seller. The seller then presents the stipulated documents to the bank; after verification, payment is made either immediately or after an agreed-upon period, depending on the LC type.

Careful attention to documentary requirements and deadlines is essential to avoid discrepancies that can delay or jeopardize payment. Working closely with banks and logistics or export specialists helps ensure smooth execution of LC transactions.