Insurance · 2 November 2017

What are letters of credit and why are they important?

Letters of credit have become important tools in international trade
Letters of credit have become important tools in international trade

To offer help to first-time importers and exporters, who may be struggling to understand some of the new terms they’re coming across, Business Advice asks what are letters of credit, and why they’re important.

A simple answer to what are letters of credit (LC) is that it’s a document, signed by a lender (usually a bank), which guarantees that a buyer’s payment to the seller of goods will be received on time, and in full.

When a bank issues an LC, it means that in the event a buyer is unable to pay for the goods they’ve committed to buying, the bank will need to cover the cost of the purchase.

For providing this service, banks tend to charge a fee – often a percentage of the size of the LC – and will ask buyers to promise collateral, in the form of cash or other securities, in the event something goes wrong with their trade deal.

LCs have become important tools for international trade. They provide security to transactions which are often highly complicated, involve many parties and can have many potential risks.

As it’s typically a negotiable financial instrument, a LC can involve more parties than simply just a bank and a beneficiary.

If a LC is “transferable”, a buyer will be able to assign another company with the right to draw on it. This third party may be a parent company to the buyer, for example.

The regulatory body which determines the rules surrounding LCs for international trade is The International Chamber of Commerce Uniform Customs and Practice for Documentary Credits.

What are letters of credit? An example

Let’s imagine that your company imports car stereo systems from a Chinese manufacturer. Your business currently banks with HSBC, for example, while the Chinese manufacturing firm banks with Bank of China.

You want to buy £30,000 worth of car stereos from the Chinese manufacturer, which it agrees to sell to you, giving you 30 days to pay them. The company agree on the condition that you give them a 90-day LC for the full amount.

In this instance, your UK company will be the LC applicant, the Chinese manufacturer is the beneficiary, HSBC are the issuing bank and Bank of China will be the so-called “advising” bank.

You’d get your LC by following these steps. Firstly, approach HSBC and ask for a £30,000 LC, with Bank of China as your beneficiary.

Then, the bank will analyse the deal, and underwrite the risks. HSBC isn’t actually advancing you any funds, but it’s extending funds on your behalf, and taking on some of the risk of not getting it back. If your firm qualifies in terms of its credit, then you’ll be issued with a LC.

Next, HSBC sends a copy of the LC to Bank of China, which will then let your Chinese manufacturer know, who’ll then be able to ship your car stereos and complete the trade.

It’s worth noting that LCs can be issued even when an applicant company’s credit fails to qualify. If you’re willing to put down cash collateral to secure a deal, “secured” LCs are increasingly common.

Promise of distant shores: SME exporting opportunities in global markets

Types of letters of credit

The example above explains an LC in its simplest guise. However, international trade often involves more factors that require different instruments.

As applicants or beneficiaries, the main aspects of an LC that should concern business owners are the speed at which they’re issued and the fees banks charge for them, which can run to up to ten per cent of the LC’s value.

Revocable LC – This is a type of LC whereby the issuing bank can revoke it without needing the beneficiary’s agreement if it wishes.

Irrevocable LC – This type of instrument cannot be cancelled or changed without all parties involved in agreement.

Revolving LC – When there are regular shipments of good between the same supplier and customer, a revolving LC can be set up. It does away with the need to issue a new LC for each new transaction.

Standby LC – If a beneficiary doesn’t get paid by an applicant once a trade’s been made, a standby LC acts as a guarantee of payment. The beneficiary can be paid by sending a copy of its unpaid invoice to the bank.

Majority of small firms will prefer trading with Europe even after Brexit

Sign up to our newsletter to get the latest from Business Advice.



Fred Heritage was previously deputy editor at Business Advice. He has a BA in politics and international relations from the University of Kent and an MA in international conflict from Kings College London.


If you’ve found the article above useful, but have a more detailed and bespoke question, then please feel free to submit a query to our expert. We at Business Advice will get in contact with them on your behalf and arrange for a personalised response. These questions and answers will then be collated on the site for any other readers who have similar queries.

Ask a question

Business development