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Letter of Credit: Definition, Process, & Different Types Explained

A letter of credit is a document that a bank issues to guarantee payment to a seller. The bank promises to pay the seller as long as the seller meets all the terms agreed upon in the contract. This guarantee gives both buyers and sellers extra security.

Most letters of credit are used in large purchases, especially imports and exports. If you worry about trust issues with your customers or your vendors, a letter of credit can reduce that concern. Banks act as neutral parties in these deals and release payments only when the parties meet the conditions.

The key point is that a letter of credit is a bank’s commitment. It is not simply a suggestion—it is a legal promise to pay, provided every requirement is fulfilled.

This article provides an overview of letters of credit, the key participants, and how the process works. We also examine the financial benefits provided by letters of credit and how businesses can further strengthen their cash flow and accounts receivable process by complementing letters of credit with trade credit insurance.

Summary

  • Allows businesses to trade confidently and securely with international buyers and vendors.
  • Lowers the risk of non-payment.
  • Provides different credit instruments for various business needs.
  • Protects cash flow.
  • Improves accounts receivable when complemented with trade credit insurance.
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By acting as a guarantee of payment from a bank, a letter of credit can give your business confidence to trade internationally. It ensures you get paid by customers as long as you meet the agreed conditions. You can also ensure your international vendors that you will pay them. This reduces your risk and helps you build trust with buyers and suppliers from other countries. 

This financial tool is commonly used in global trade to protect both sides and keep transactions moving smoothly. Understanding how a letter of credit works can help you manage your cash flow and limit exposure to non-payment. By knowing the basics, you can make smarter business decisions and take advantage of opportunities in different markets.

The main purpose of a letter of credit is to protect both buyers and sellers. As a business owner, you may not know the other party well or worry about cross-border risks. A letter of credit lessens the fear of non-payment if you are a seller and the risk of paying for goods you never receive if you are a buyer.

This tool is important because it builds trust in large deals. It can unlock access to more suppliers or customers who may not want to do business without secure payment terms. When the issuing bank gets involved, each side knows that the money will change hands—if both sides meet the agreed conditions.

A letter of credit can also help improve your cash flow, and it might allow you to get better payment terms, such as paying after receiving your goods.

Several parties play a role in letters of credit:

  • Applicant (Buyer) requests the letter of credit from their bank to assure the seller of payment.
  • Beneficiary (Seller) sells the goods or services; they get paid once they meet the terms.
  • Issuing bank creates and sends the letter of credit and guarantees payment.
  • Advising bank works with the seller and helps confirm the authenticity of the letter of credit.

Each participant helps make the process secure. The issuing bank’s main role is to back the buyer’s payment promise, which gives the seller confidence to fulfill the order. The advising bank supports the seller and helps them understand what they need to provide to receive payment.

The letter of credit process has several steps:

1.   Agreement: The buyer and the seller agree on the sale and payment terms.

2.   Application: The buyer applies for a letter of credit at their bank (the issuing bank).

3.   Issuance: The issuing bank reviews the application and, if approved, sends the letter of credit to the seller’s bank (the advising bank).

4.   Shipment: The seller ships the goods and provides documents proving they met the contract terms.

5.   Document Check: The advising and issuing banks review the documents to make sure all terms are met.

6.   Payment: Once conditions are verified, the issuing bank pays the seller.

This step-by-step approach ensures payment will not occur unless the seller meets every contract term. At the same time, buyers can feel confident their money will only be released after their requirements are satisfied. This is why letters of credit are a popular tool for managing risk in business deals—for both buyers and sellers.

Letters of credit come in different forms, each designed for a specific need in trade and business transactions. They offer protection for buyers and sellers and help make sure payments are made under agreed terms.
A commercial letter of credit is often used in international trade to pay a seller once certain documents are presented. This acts as a direct payment method from the buyer’s bank to the seller’s bank after goods have shipped.

The buyer agrees to set conditions in the letter of credit, such as a bill of lading or shipping documents. Once the seller proves they shipped the goods by sharing these documents, payment is released.

This lowers the risk for both the buyer and the seller. The bank checks all documents, making sure the seller meets all requirements, before any money moves. Commercial letters of credit are ideal when buyers need assurance that they will only pay when terms are followed.

A standby letter of credit acts more like a backup guarantee than a direct payment tool. Buyers can use it to prove to a seller or other party that they can pay, but it is only called on if the buyer fails to meet their side of an agreement.

This type supports many business situations, such as renting property, paying for services, or backing up contract bids. The seller or beneficiary can demand payment if the buyer defaults. But usually, the letter just sits unused as a sign of the buyer’s financial strength.

Banks will not pay unless the other party gives proof that the buyer did not meet their promises. This protects both sides in case something goes wrong.

An export letter of credit helps when selling goods to overseas buyers. It tells the bank to collect payment from the buyer’s bank once the seller ships the goods and supplies the required documents.

The seller gets more security as an exporter because the buyer’s bank guarantees payment if the seller meets all the terms agreed in the letter of credit. Common documents include an invoice, a packing list, and proof of shipment. This reduces the risk of non-payment, especially when working with buyers in other countries.

If a seller does not provide the documents, the bank will not send the payment. It’s critical to make sure the paperwork is complete and matches the letter of credit terms.

A letter of credit sets out the steps banks and businesses follow in international trade. Understanding its main terms, required documents, and handling changes helps keep transactions smooth and safe.

The basic parts of a letter of credit lay out the rules for payment. These often include the amount, expiration date, and the latest shipment date. The letter will also name the issuing bank (the buyer’s bank), the beneficiary (the seller), and the applicant (the buyer).

A letter of credit often spells out payment terms, such as payment at sight or after a set period (for example, 30 days after shipment). It acts as a guarantee from the bank, which means sellers are more likely to get paid even if the buyer cannot pay. In cases of non-payment by the buyer, the issuing bank is responsible.

You may see a letter of credit compared to a surety bond. Both provide financial security for parties in a deal, but a letter of credit puts more focus on payment for goods or services in trade.

The key details usually appear in a table, such as this example:

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Component Description
Amount Total value to be paid
Expiration date Last date for document acceptance
Issuing bank Bank guaranteeing the payment
Beneficiary Seller or exporter
Applicant Buyer or importer
Shipment date Last day for shipping goods

A letter of credit also lists the specific documents that sellers must present to get paid. These are often the commercial invoice, bill of lading, packing list, and sometimes insurance documents.

Sellers must submit these documents within a set time, called the document presentation period. If the documents do not match the letter of credit exactly, the bank can refuse to pay. Attention to detail is critical.

For customs, the letter of credit may require extra paperwork, like inspection certificates. The goal is to prove you shipped the correct goods at the right time, meeting all terms.

Letters of credit play a crucial role in making global business deals safer and more reliable. They reduce payment and receiving risks, ensure payments, and allow smoother shipping and delivery across borders.

When you trade with companies in other countries, you often face unfamiliar rules and different business practices. Letters of credit help you overcome these barriers by providing a clear agreement on payment terms and shipping conditions.

With a letter of credit, your buyer’s bank promises to pay you once you meet all the agreed terms. This makes it easier to trust international buyers, even if you have not worked with them before. As a result, you can grow into new markets with less worry about not getting paid.

You also benefit by having a reliable payment process, which lets you plan shipments, manage cash flow, and keep your accounts receivable under control. Many businesses use letters of credit to secure timely payments and avoid long delays.

Doing business overseas comes with financial risks. You might worry about the creditworthiness of your trading partners or political and economic changes in their countries. Letters of credit help you reduce these risks by transferring much of the payment risk to the bank.

If your buyer cannot pay because of local problems, the bank that issued the letter of credit must pay you if you meet all the documented terms. The bank’s guarantee makes your contracts safer than using open-account or advance payment methods.

Letters of credit provide favorable payment terms for both exporters and importers. As an exporter, you know you will be paid once you ship goods and provide the required documents. This allows you to use your accounts receivable as collateral for short-term financing, making it easier to manage your working capital.

Importers also benefit. Payment goes through only when the exporter shows proof that goods are shipped according to the agreement. This helps importers get access to finance since their bank understands that there is extra assurance that the goods will be delivered as agreed.

Banks sometimes offer special financing linked to a letter of credit, such as packing credit before shipping or post-shipment loans after the goods are sent. By using these financial tools, you can take advantage of international business opportunities while protecting your interests.

Using letters of credit provides several benefits, especially when considering how banks track the use of these instruments to assess a company’s financial stability:

  • Helps sellers protect cash flow and manage accounts receivable.
  • Improves relationships with lenders.
  • Enables added flexibility in securing payments from customers.
  • Allows sellers to leverage guarantees to receive early payments from their bank.
  • Shows banks and other partners that sellers and buyers have sound financial practices.

As a buyer, if you consistently meet your obligations, you can strengthen your business credit profile. Good credit can help you access lower interest rates and apply for higher credit limits. Suppliers and partners may also view you as a safer business partner. This can open doors to better payment terms and larger order volumes.

Letters of credit are particularly beneficial when selling goods and services internationally, where you face the risk that buyers might delay or fail to pay. With a letter of credit, a bank guarantees payment as long as you provide the required documents.

In some cases, banks may offer loans or advances based on the letter of credit. This helps you avoid cash shortages and keep your business running smoothly. Better control over your receivables also allows you to pay suppliers on time. This can support steady operations and help you avoid late fees.

How Trade Credit Insurance Further Strengthens Businesses

As you explore the world of letters of credit, it’s important to recognize that there are alternative tools to protect your business from the risks of non-payment. While a letter of credit offers security by guaranteeing payment from a buyer’s bank, it can also be complex, costly, and limited to specific transactions.

That’s where trade credit insurance comes into play, offering a broader and more flexible solution for safeguarding your accounts receivable. You can extend credit to your customers with greater confidence, knowing your receivables are protected against the risk of default, insolvency, and delayed payments. Unlike a letter of credit, which is typically arranged on a transaction-by-transaction basis, trade credit insurance can cover multiple buyers, domestic and international.

This allows you to grow your sales without increasing your financial exposure. You can offer more competitive payment terms, strengthen customer relationships, and pursue new markets—all while maintaining the security you need to support your cash flow and balance sheet.

And by integrating trade credit insurance into your risk management strategy, you protect your business from unforeseen losses and enhance your ability to secure better financing terms from lenders. Banks and financial institutions often view insured receivables more favorably, which can improve your access to working capital.

In essence, while letters of credit are a valuable tool for specific transactions, trade credit insurance provides ongoing, comprehensive protection that empowers you to expand your business with confidence and peace of mind. If you’re looking for a more agile and scalable way to manage credit risk, trade credit insurance could be your business's solution to thrive in today’s competitive marketplace.

To learn about alternatives to letters of credit, check out this post, which provides more information about trade credit insurance and an overview of purchase order financing and invoice factoring.

A letter of credit in international trade protects both buyers and sellers. For buyers, their bank promises payment to the seller if the seller meets certain shipment and document conditions. For sellers, they know they will get paid as long as they provide the required documents on time.
Revocable letters of credit can be changed or cancelled by the bank or the buyer without notice. Irrevocable letters of credit cannot be changed or cancelled, unless all parties agree. Confirmed letters of credit include a second guarantee from another bank, which adds extra security. Unconfirmed letters do not have this extra guarantee.
First, the buyer applies to their bank for a letter of credit. After the bank issues it, the seller’s bank reviews the terms. The seller ships the goods and submits shipping and other required documents to their bank. The documents are checked, and payment is made—if everything is correct.
If documents do not match the requirements exactly, payment can be delayed or refused. There is also the risk of fraud. Sometimes, banks or countries may face political or financial problems, which can affect payments.
A letter of credit is a direct promise by the bank to pay the seller if all conditions are met. A bank guarantee promises that the bank will pay only if the buyer fails to meet their responsibilities. In trade, letters of credit focus on payment. Bank guarantees focus on performance and behavior.
When you insure your accounts receivables with trade credit insurance from Allianz Trade, you can count on being paid, even if one of your accounts faces insolvency or is unable to pay. In addition, trade credit insurance from Allianz Trade comes with the added benefit of the support necessary to make data-informed decisions about extending credit to new clients or increasing credit to existing clients.
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Allianz Trade is the global leader in trade credit insurance and credit management, offering tailored solutions to mitigate the risks associated with bad debt, thereby ensuring the financial stability of businesses. Our products and services help companies with risk management, cash flow management, accounts receivables protection, surety bonds, and e-commerce credit insurance ensuring the financial resilience for our client’s businesses. Our expertise in risk mitigation and finance positions us as trusted advisors, enabling businesses aspiring for global success to expand into international markets with confidence.

Our business is built on supporting relationships between people and organizations, relationships that extend across frontiers of all kinds—geographical, financial, industrial, and more. We are constantly aware that our work has an impact on the communities we serve and that we have a duty to help and support others. At Allianz Trade, we are strongly committed to fairness for all without discrimination, among our own people and in our many relationships with those outside our business.