Documentary Letters of Credit (DLC) in Trade Finance

International trade creates a basic payment problem. The seller does not want to ship valuable goods before receiving payment. The buyer does not want to pay the full purchase price before the goods have been shipped.

A documentary letter of credit, commonly shortened to DLC or LC, inserts a bank undertaking between those commercial positions. The buyer arranges for its bank to issue the credit in favor of the seller. The issuing bank undertakes to honor a complying presentation according to the terms of the credit.

The seller therefore does not rely solely on the buyer's promise to pay. The buyer does not simply wire money against an invoice and hope the supplier performs. Payment is tied to documents specified in the credit.

Documentary credits remain one of the central instruments used to finance and secure cross-border purchases of commodities, machinery, raw materials, manufactured goods and other commercial products.

The Main Parties to a Documentary Letter of Credit

A basic LC transaction begins with the applicant and beneficiary.

The applicant is normally the buyer or importer. It asks its bank to issue the documentary credit.

The beneficiary is normally the seller or exporter. It receives the benefit of the issuing bank's undertaking.

The issuing bank issues the credit at the applicant's request. An advising bank receives the authenticated credit and advises it to the beneficiary. A nominated bank can be authorized to pay, incur a deferred-payment undertaking, accept a draft or negotiate depending on the terms of the credit.

A confirming bank can add its own undertaking where confirmation is requested and the bank agrees to provide it.

UCP 600 Provides the Main International Rule Framework

Most commercial documentary credits expressly incorporate the ICC Uniform Customs and Practice for Documentary Credits, UCP 600.

UCP 600 addresses matters including irrevocability, advising, confirmation, amendments, examination of documents, transport documents, insurance documents, honor, negotiation and discrepancies.

The rules apply where the credit states that it is subject to them. They operate alongside applicable law rather than replacing national sanctions, AML, insolvency or other mandatory legal requirements.

ICC has retained UCP 600 as the current framework in 2026 and is focusing its present work on clarification and application rather than launching a formal new revision.

MT700 Is Commonly Used to Issue the Credit Through SWIFT

Banks commonly transmit documentary credits through authenticated SWIFT Category 7 messages.

MT700 is the standard message used for issuance of a documentary credit. It contains structured fields identifying matters such as the applicant, beneficiary, amount, expiry, availability, shipment terms and documentary requirements.

Where the credit contains more information than can fit inside one MT700, additional details can be transmitted using associated MT701 messages according to the applicable SWIFT standards.

SWIFT authenticates the bank-to-bank message. It does not independently underwrite the transaction or guarantee that the beneficiary will make a complying presentation.

The Sales Contract Comes First

The buyer and seller should agree the commercial transaction before the LC is issued.

The sales contract should define the goods, quantity, specification, price, currency, Incoterm, shipment window, payment method and other commercial obligations.

The documentary credit is then drafted to support the agreed payment mechanism.

Problems arise when the LC and sales contract contain conflicting requirements. A supplier can comply with its commercial contract and still present discrepant documents if the credit was drafted differently.

A Typical Documentary LC Transaction

Consider a buyer purchasing USD 5 million of industrial equipment from an overseas manufacturer.

The sales contract requires payment by irrevocable documentary LC at sight. The buyer applies to its bank for issuance. The issuing bank approves a USD 5 million LC facility and transmits the credit through SWIFT to a bank in the seller's country.

The advising bank authenticates the message and advises the credit to the exporter. The exporter reviews the terms and manufactures the equipment.

After shipment, the exporter presents the required documents. These could include the commercial invoice, packing list, transport document, certificate of origin and any additional certificates required by the credit.

If the presentation complies, the credit is honored according to its payment terms.

A Sight LC Pays After a Complying Presentation

A sight documentary credit is designed for payment after the required documents have been presented and found compliant.

The word "sight" does not mean the exporter receives money the instant the documents reach a bank.

Banks are entitled to examine the presentation. Under UCP 600 Article 14, a nominated bank acting on its nomination, a confirming bank and the issuing bank each have a maximum of five banking days following the day of presentation to determine whether the presentation complies.

Operational processing, reimbursement and correspondent banking can affect the final movement of cash after that examination.

A Usance LC Gives the Buyer Time to Pay

A usance or deferred-payment LC allows payment to occur at a future maturity rather than immediately after a complying presentation.

The credit might provide payment 60, 90 or 180 days after shipment, bill of lading date or another defined event.

This gives the importer additional time to receive, distribute or resell the goods before reimbursement becomes due.

The seller then has a financing decision. It can wait until maturity or seek to discount the bank payment obligation where the structure and participating banks permit.

UPAS Can Give the Seller Sight Payment While the Buyer Receives Tenor

A Usance Payable at Sight structure separates the supplier's payment timing from the importer's reimbursement timing.

The seller receives payment at or around sight following a complying presentation, while financing is extended to the applicant or issuing-bank side for the agreed usance period.

This can resolve a common negotiation problem. The supplier wants immediate cash while the buyer needs 90 or 180 days to convert the imported goods into revenue.

The structure involves additional financing cost and requires banks willing to provide the underlying tenor.

Confirmation Protects Against Issuing-Bank and Country Risk

An exporter can be comfortable with the buyer but unwilling to rely on the issuing bank or its jurisdiction.

A confirming bank can add its own independent undertaking to the credit. The exporter then has the benefit of both the issuing-bank obligation and the confirming bank's undertaking, subject to the terms of the credit and confirmation.

Confirmation requires independent underwriting. The confirming bank considers issuing-bank credit quality, country risk, tenor, transaction characteristics, sanctions exposure and available limits.

Financely works with eligible transactions requiring letter of credit confirmation where the beneficiary needs additional bank risk mitigation.

Confirmation Has a Price

Confirmation fees depend heavily on the risk being added to the confirming bank's balance sheet.

A short-tenor LC from a strong international bank in a low-risk market produces different pricing from a six-month exposure to a smaller institution in a jurisdiction with limited foreign-exchange availability.

Country limits can also make confirmation unavailable even when the issuing bank itself is acceptable.

Exporters should therefore establish the required issuing-bank and confirmation profile before the buyer arranges the instrument.

Banks Examine the Documents Rather Than the Goods

The issuing bank is not normally responsible for determining whether a container actually contains goods of the commercial quality promised in the sales agreement.

It examines the documentary presentation.

If the applicant wants an independent inspection before payment, the credit can require an inspection certificate issued by an agreed inspection company.

The bank then determines whether the required certificate has been presented in the form contemplated by the credit. The inspection company performs the physical inspection.

Documentary Requirements Should Be Objective

A well-drafted LC asks for documents that can actually be produced and examined.

Commercial invoice, packing list, bill of lading, certificate of origin and inspection certificates are familiar examples.

Conditions such as "goods must be satisfactory to the buyer" create a different problem because the bank cannot determine satisfaction from the statement alone unless the credit specifies an appropriate document evidencing that condition.

Over-documenting a credit also increases discrepancy risk without necessarily providing additional commercial protection.

Common Documentary Discrepancies

Common problems include:

• shipment after the latest shipment date;
• presentation after the permitted presentation period;
• expired credit;
• incorrect invoice amount or currency;
• inconsistent quantities;
• incorrect port or place of destination;
• missing required signatures;
• incorrect transport documents;
• missing certificates; and
• insurance documentation that does not satisfy the credit.

Many discrepancies result from poorly drafted LC conditions rather than substantive non-performance by the seller.

A Discrepant Presentation Can Still Be Accepted

A discrepancy does not automatically terminate the commercial transaction.

The issuing bank can approach the applicant regarding waiver of discrepancies. The applicant can choose to accept documents despite the identified issues.

The beneficiary should not rely on receiving a waiver. The buyer can refuse, particularly where the discrepancy reflects a commercial issue such as late shipment.

Exporters therefore benefit from reviewing documents against the credit before formal presentation.

The LC Does Not Protect the Buyer Against Every Commercial Risk

A complying bill of lading proves the document satisfies the relevant credit requirements. It does not guarantee that the goods will later meet every contractual performance requirement.

Warranty, quality, delay damages, technical specifications and contractual remedies remain matters for the underlying sale or supply agreement.

Buyers sometimes attempt to transfer all these issues into the LC. Doing so produces complicated documentary conditions and increases the probability of payment disputes.

The better approach is to use the documentary credit for payment security and use the commercial agreement to allocate the broader performance risk.

The LC Also Does Not Replace Supplier Due Diligence

A buyer should verify its supplier before asking a bank to issue a multi-million-dollar payment undertaking.

The supplier should exist, possess legal authority to enter the contract and have the capacity to manufacture or control the goods it promises to deliver.

This becomes especially important in commodity trading, where fabricated offers, false inventory claims and unauthorized intermediaries can be presented alongside professional-looking documents.

The LC controls payment. It does not validate the commercial proposition on behalf of the applicant.

The Issuing Bank Underwrites the Applicant

Applicants sometimes describe an LC as though the bank merely sends a SWIFT message on their instructions.

The issuing bank is creating a contingent payment obligation.

It therefore evaluates the applicant's financial position, facility availability, transaction, reimbursement source and collateral. Depending on credit strength, the bank can require cash margin, security over assets, corporate guarantees or other support.

Financely assists eligible importers and traders with documentary letter of credit structuring and bank placement where the underlying commercial transaction can satisfy lender underwriting.

Full Cash Collateral Changes the Economics

An importer can obtain an LC by depositing the full face amount with the issuing bank.

This provides the supplier with bank-backed payment security but does little to solve the buyer's working-capital problem.

An importer seeking genuine trade-finance capacity normally wants the issuing bank to extend credit against its balance sheet, collateral, transaction assets or another acceptable reimbursement structure rather than requiring 100% cash margin.

The required margin can therefore be as commercially important as the LC fee itself.

Importers Should Compare Total LC Economics

Documentary-credit costs can include arrangement or facility fees, issuance commissions, SWIFT charges, amendment fees, advising charges, confirmation fees and financing costs.

A usance structure adds the cost of extending payment tenor. Discounting creates another funding spread.

A nominally cheap issuing bank can therefore produce a more expensive transaction if it requires substantial cash collateral or costly confirmation.

The applicant should compare the complete landed financing cost against the gross margin on the underlying trade.

An LC Can Support Pre-Shipment Finance for the Exporter

An exporter can receive a valid LC before manufacturing or procuring the goods.

The incoming credit provides evidence of the expected payment source once shipment and documentary conditions are satisfied.

A lender can use that information when considering pre-shipment working capital for raw materials, production or procurement.

The financing bank still underwrites performance risk. An LC payable after shipment does not compensate the pre-shipment lender if the exporter never manufactures compliant goods.

Discounting Can Convert a Future LC Payment Into Immediate Cash

A seller presenting under a usance or deferred-payment credit can be entitled to payment at a future maturity.

Rather than waiting 90 or 180 days, the beneficiary can seek financing against the bank payment obligation.

Pricing depends on the issuing or confirming bank, maturity, currency, jurisdiction and transaction structure.

Financely structures eligible letter of credit discounting transactions where a bank obligation can support post-shipment liquidity.

Discounting Is Different From Informal “LC Monetization”

A legitimate discounting transaction has an identifiable bank payment obligation, maturity and financing counterparty.

The financier assesses the instrument and the obligor and advances an amount reflecting the future receivable.

This should not be confused with online offers claiming that any LC or bank instrument can be "monetized" at a fixed percentage regardless of issuer, wording, transaction or beneficiary.

Institutional banks and lenders underwrite the actual credit exposure. There is no universal advance rate applicable to every documentary credit.

Transferable LCs Can Support Certain Intermediary Trades

A trader can receive an LC from its buyer but need to source the goods from another supplier.

Where the original credit is expressly transferable, the first beneficiary can request transfer according to the relevant rules and bank procedures.

This can allow part or all of the credit to support the upstream supplier while preserving the intermediary's commercial position.

Transferability has to be expressly provided. A beneficiary cannot assume an ordinary LC can simply be transferred to another supplier.

Back-to-Back LCs Create a Separate Upstream Credit

Where transfer is unavailable or commercially unsuitable, a bank can consider issuing a second documentary credit in favor of the upstream supplier based partly on the incoming master credit.

The bank now has exposure to differences between the two credits.

Shipment dates, expiry, documents, quantities and payment timing have to leave enough room for the intermediary to receive documents from the supplier and make its own presentation under the master credit.

A back-to-back structure therefore requires considerably more bank underwriting than simply forwarding the buyer's LC.

Sanctions and KYT Still Apply

Documentary compliance does not override financial crime controls.

Banks examine the parties, beneficial owners, goods, jurisdictions, payment route and logistics chain. Commodity trades can also require vessel and origin screening.

A presentation can comply with the wording of the LC while the bank has a separate legal obligation preventing payment.

Applicants should therefore complete transaction diligence before issuance rather than assuming the LC itself validates the underlying trade.

Amendments Need Beneficiary Acceptance Where Required

Commercial transactions change after issuance.

A shipment window can move. Quantity can change. The seller can request another document condition or payment term.

The applicant can ask its bank to issue an amendment, but an amendment cannot simply rewrite the beneficiary's rights unilaterally where acceptance is required under the applicable credit framework.

The safest approach is to finalize the important commercial terms before issuance and use amendments for genuine subsequent changes rather than as a substitute for proper drafting.

Electronic Presentations Are Becoming More Relevant

Documentary credits can increasingly accommodate electronic records where the credit and participating banks support the appropriate framework.

ICC's eUCP supplements UCP 600 for credits involving electronic records. Current eUCP Version 2.1 reflects the growing use of digital trade documentation.

Electronic bills of lading and other electronic transferable records can reduce document transit times as legal recognition expands.

Banks still need operational and technical capability to receive and examine the relevant electronic presentation.

An Illustrative DLC Structure

Actual documentary requirements, payment structure, fees, collateral and bank obligations depend on the transaction and final issued credit.

What an Applicant Should Prepare

A serious request for LC issuance should include:

• applicant corporate information;
• financial statements or management accounts;
• supplier contract or pro forma invoice;
• beneficiary details;
• LC amount and currency;
• goods description;
• origin and destination;
• Incoterm;
• shipment window;
• payment tenor;
• confirmation requirement;
• proposed documentary conditions;
• expected repayment source; and
• available collateral or cash-margin information.

Banks can then underwrite an actual transaction rather than a generic request for an instrument.

When a Documentary Credit Makes Commercial Sense

Documentary credits are particularly useful when buyer and seller have limited trading history, when the supplier will not extend open-account terms or when the seller requires bank-backed payment security before manufacturing or shipping.

They are also useful where the buyer wants payment tied to objective shipment documents rather than making a large unsecured advance.

As relationships mature, some companies move toward open-account terms supported by receivables or supply chain finance. Others continue using LCs because transaction size, country risk or commodity practice makes the additional payment security worthwhile.

The appropriate instrument depends on the commercial risk rather than on whether an LC sounds more secure in principle.

Structuring Documentary Letter of Credit Transactions

Financely works with importers, exporters and physical commodity companies seeking documentary credit and associated trade-finance capacity for legitimate commercial transactions.

Mandates can involve sight LCs, usance structures, UPAS, confirmation, discounting, pre-shipment finance and intermediary trade structures.

The transaction is reviewed before lender distribution. The purchase contract, seller, buyer, goods, shipment route, payment mechanics, expected margin and reimbursement source need to form a coherent commercial structure.

Issuance and confirmation remain subject to the independent underwriting, KYC, KYT, sanctions and documentation requirements of the participating regulated financial institutions.