A standard, commercial letter of credit is a document issued mostly by a financial institution, used primarily in trade finance, which usually provides an irrevocable payment undertaking.
"Letters of credit are commonly used to reduce credit risk to sellers in both domestic and international sales arrangements. By having a bank issue a letter of credit, in essence, one is substituting the bank's credit worthiness for that of the customer."
The LC can also be the source of payment for a transaction, meaning that redeeming the letter of credit will pay an exporter. Letters of credit are used primarily in international trade transactions of significant value, for deals between a supplier in one country and a customer in another. They are also used in the land development process to ensure that approved public facilities (streets, sidewalks, stormwater ponds, etc.) will be built. The parties to a letter of credit are usually a beneficiary who is to receive the money, the issuing bank of whom the applicant is a client, and the advising bank of whom the beneficiary is a client. Almost all letters of credit are irrevocable, i.e., cannot be amended or canceled without prior agreement of the beneficiary, the issuing bank and the confirming bank, if any. In executing a transaction, letters of credit incorporate functions common to giros and Traveler's cheques. Typically, the documents a beneficiary has to present in order to receive payment include a commercial invoice, bill of lading, and documents proving the shipment was insured against loss or damage in transit. However, the list and form of documents is open to imagination and negotiation and might contain requirements to present documents issued by a neutral third party evidencing the quality of the goods shipped, or their place of origin.
A letter of credit is basically a document issued by a bank guaranteeing a client's ability to pay for goods or services. A bank or finance company issues a letter of credit on behalf of an importer or buyer, authorizing the exporter or seller to obtain payment within a specified timeframe once the terms and conditions outlined in the letter of credit are met. The letter of credit acts like an insurance contract for both the buyer and seller and practically eliminates the credit risk for both parties, while at the same time reducing payment delays. A letter of credit provides the exporter or seller with the greatest degree of safety when extending credit. It is useful when the importer or buyer is not well known and when exchange restrictions exist or are possible.
Documentary or letters of credit, as they are more commonly referred to, come in many forms. These options were created to make this banking instrument flexible and applicable to a wide variety of business transactions. The different types of letters of credit can be used in many combinations or independently. The type of letter of credit chosen for a transaction is based on the parties and countries involved, the risks associated with the transaction as well as the products or services being bought and sold.