Letter of Credit Process: A Practical Guide

A documentary letter of credit is a bank undertaking to pay the seller when the seller presents the documents required by the credit. The process is useful only when the commercial agreement, document list, bank roles, and timing all point in the same direction.

A letter of credit can give a cross-border fuel transaction a defined payment path, but it is not a shortcut around commercial discipline. The buyer, seller, banks, and operational teams each have a separate job. When those jobs are clear, the process helps turn an agreed purchase into a sequence of verifiable steps. When they are not, the credit often becomes the place where unresolved questions finally surface.

This guide follows a typical documentary letter of credit process. It is written for buyers and supply-side parties who need to understand the flow before they propose a procedure. It is general information, not banking or legal advice, and the actual credit should always be reviewed with the banks and advisers involved in the specific transaction.

Before the credit: agree the commercial deal

The process begins before a bank sees a draft. The buyer and seller need a workable commercial agreement covering the product, specification, quantity, price basis, delivery point, shipment or delivery window, inspection arrangement, and allocation of costs. A credit should reflect those points. It should not be asked to invent them.

For fuel, the delivery basis is especially important. The documents available for an FOB cargo will not necessarily match those available for CIF, terminal-to-terminal, or another delivery structure. A requested bill of lading, inspection certificate, certificate of origin, or insurance document must be appropriate to the way the product will actually move. A document condition that cannot be met is not protection. It is a predictable source of delay.

The parties should also agree why they are using the credit. In a documentary credit, payment is generally tied to a compliant presentation of the stipulated documents, not to an open-ended judgment about whether the underlying transaction feels complete. Readers comparing a normal documentary payment structure with a contingent instrument can review Van Dyke Energy’s SBLC versus letter of credit guide before deciding what language they are really being asked to accept.

Step 1: The buyer applies to its bank

Once the commercial terms are sufficiently defined, the buyer, often called the applicant, asks its bank to issue a documentary letter of credit for the seller, who is usually called the beneficiary. The bank will need enough information to understand the proposed undertaking, the amount, currency, beneficiaries, dates, document requirements, and its customer’s ability to meet the obligation.

This is not the time for a one-line request saying “issue an LC.” A useful application package identifies the sales contract or purchase terms, the product and quantity, the shipment period, the latest presentation date, the requested expiry place, and the documents the seller is expected to provide. The buyer should also identify whether another bank is expected to advise or confirm the credit.

The issuer’s own onboarding, credit process, and compliance requirements are part of the real timeline. A counterparty should not represent that a credit is imminent until the buyer has actually discussed the structure with its bank and knows what information the bank needs.

Step 2: The issuing bank creates the credit

The issuing bank prepares the credit using the instructions it accepts from the applicant. The wording sets the bank’s undertaking and the conditions for presentation. It normally identifies the applicant, beneficiary, amount, currency, expiry date, place of presentation, shipment terms, and the exact documents required.

In many international credits, the text incorporates rules such as the International Chamber of Commerce’s Uniform Customs and Practice for Documentary Credits, commonly known as UCP 600. Those rules do not replace the credit wording, but they supply a shared framework for issues such as examination and presentation. The U.S. International Trade Administration’s letter of credit overview is a useful starting point for understanding why the document set and the credit terms must work together. Parties should make sure the proposed rule set and wording are appropriate for the transaction instead of assuming an old template will fit.

Before release, the buyer should read the operative draft alongside the purchase agreement. The seller or its operations team should also be able to assess whether the requested documents can be issued as described. A bank may write a technically complete condition that is commercially impossible to satisfy because it came from a generic checklist rather than the actual supply chain.

Step 3: The credit is advised to the seller

The issuing bank typically sends the credit through an advising bank, often in the seller’s country or banking network. The advising bank’s role is generally to authenticate the credit and pass it to the beneficiary. Advising a credit does not automatically mean the advising bank has promised to pay. That distinction matters when parties casually describe an instrument as “confirmed” or “bankable.”

If the seller needs another bank’s separate undertaking, the parties may discuss confirmation. A confirming bank takes on its own obligation only when it agrees to do so. Its decision may depend on the issuing bank, jurisdiction, amount, tenor, wording, transaction profile, and its own risk assessment. Confirmation should never be treated as a box checked in an offer before the relevant bank has reviewed the credit.

At this point, the seller should check every practical detail: beneficiary name, product description, tolerances, permitted partial shipments or transshipment if relevant, latest shipment date, expiry, presentation period, and each requested document. Corrections are much easier before loading than after a shipment is underway.

Step 4: The seller performs and builds the document set

After accepting the credit terms, the seller performs under the commercial agreement and gathers the documents stated in the credit. Depending on the transaction, that package may include a commercial invoice, transport document, independent inspection record, certificate of origin, insurance certificate, packing or quantity record, and product-specific documents. The credit governs what the bank examines, so labels, dates, parties, and descriptions all matter.

The document set should be designed for the actual operation. If an inspection is required, the agreement should identify the inspector, point of inspection, scope, and timing. If transport documents are required, the parties should understand who issues them and when. If insurance is a seller responsibility, the wording should match the delivery term. Extra requirements do not make a credit stronger when no one can produce them reliably.

For a serious fuel requirement, the same preparation should begin well before the banking step. The fuel request form asks for product, volume, location, delivery basis, and timing because those facts make it possible to assess whether the commercial path is defined enough to discuss documents and payment procedures.

Step 5: The seller presents the documents

The seller, often through its bank, presents the required documents within the time allowed by the credit. The presentation must be made at the specified place or through the agreed channel. The seller should not assume that a cargo moving on time will cure a late document presentation. Shipment dates, expiry dates, and presentation periods are separate controls.

Before presentation, the seller should compare each document against the credit line by line. Small differences can create a discrepancy: a misspelled party name, a date outside the permitted window, a document issued by the wrong party, a quantity outside the tolerance, or a missing statement. Some differences may be accepted by the applicant, but the beneficiary should not plan a transaction around an assumed waiver.

That practical check is the reason operational people need a seat at the table before the credit is issued. The bank checks documents against the credit. It does not inspect the cargo, rewrite a document, or infer commercial intent that was not expressed in the text.

Step 6: Banks examine the presentation

The nominated or issuing bank examines the presentation against the credit and applicable rules. The central question is not whether the documents tell a generally reassuring story. It is whether they appear to comply with the stated conditions. If they do, the credit’s payment or acceptance mechanism can proceed. If they do not, the bank may notify the relevant parties of discrepancies.

This independence from the sales contract is one of the defining features of letters of credit. In the United States, the separation between a letter of credit and the underlying contract is reflected in Article 5 of the Uniform Commercial Code. That is why parties should not leave critical business points only in emails or in a contract when they also need them to be conditions of the credit.

A discrepancy is not necessarily the end of a deal, but it changes the process. The applicant may choose to waive it, the seller may correct it if time allows, or the parties may need to amend the credit. The safest approach is still prevention: use document requirements that are meaningful, achievable, and checked before the credit is issued.

Step 7: Payment and document release

When the presentation is accepted, payment follows the terms of the credit. Some credits are available at sight, while others involve deferred payment, acceptance, or negotiation arrangements. The buyer’s bank then receives or controls the documents as the procedure provides, allowing the buyer to use the documents for the next operational step, such as taking delivery or clearing the cargo.

The payment structure should match the commercial reality. A buyer needs to understand when it will be debited or become obligated. A seller needs to understand when funds will be available and what costs may apply. Issuance, advising, confirmation, amendment, discrepancy, courier, and bank charges should be allocated before they become a surprise in the middle of an otherwise workable transaction.

Step 8: Close the loop and document what changed

After payment and document handling are complete, the parties should retain the final credit, amendments, presentation records, notices, and commercial correspondence in an organized file. That record supports accounting, audit, claims handling, and any later transaction with the same counterparty.

It is also the right time to capture lessons. Did the document set include conditions no one used? Did an amendment become necessary because the shipping timeline was too tight? Did a bank requirement appear late? A future transaction may benefit from an established template, but only after the parties understand why each term was there. Reusing wording without that review merely repeats old friction.

Where Van Dyke Energy fits

Van Dyke Energy is a broker and intermediary, not the issuing bank, seller, or legal adviser. Its role is to help qualified buyers and supply-side parties determine whether the product requirement, counterparty role, delivery basis, timing, documentation, and commercial procedure are clear enough for a serious next conversation.

That early discipline matters because the best letter of credit process starts with an actual transaction, not a copied request for an instrument. Buyers can review the buyer readiness guidance and submit a structured fuel requirement. Supply-side parties can use the supplier submission. Both can also review the firm’s compliance approach before sensitive documentation or introductions are exchanged.

This article is general educational information, not legal, banking, compliance, or financial advice. Documentary credits and international trade procedures should be reviewed with qualified advisers for the specific transaction.