Letter of Credit Process: How to Amend an LC When Shipment Plans Change

The letter of credit process does not end when a bank issues the credit. Production delays, revised quantities or a missed vessel can make the original terms unworkable. When shipment plans change, importers and exporters need a controlled amendment—not just an updated purchase order or a reassuring email.

The central rule is simple: a commercial agreement to change the shipment is not itself an amendment to the LC. The bank’s undertaking must be addressed separately, and the beneficiary must understand which terms apply before shipping or presenting documents.

This guide explains how to coordinate that change, including acceptance under UCP 600 where the credit expressly incorporates those rules. Always review the actual credit wording and obtain transaction-specific guidance from the banks involved.

1. Identify exactly what changed

Start with a comparison between the issued LC and the revised transaction. Avoid a vague instruction such as “please extend the LC.” It may solve one problem while leaving another untouched.

Prepare a change register covering:

• Shipment timing: production readiness, cargo handover and expected shipment date.
• Quantity and value: units, unit prices, total amount, currency and applicable tolerances.
• Routing: loading port, discharge port, destination, transshipment and partial shipments.
• Documents: transport document, invoice, packing list, insurance and certificates.
• Delivery terms: any change affecting freight, insurance or documentary responsibilities.

Record the existing wording, proposed replacement and reason for each change. Check every requested document for knock-on effects. A new destination, for example, may require corresponding changes to transport and insurance requirements.

Practical control: maintain one agreed amendment schedule. Multiple email threads with different quantities or dates create unnecessary drafting risk.

2. Map the three deadlines separately

A frequent amendment mistake is changing the wrong date. Shipment, presentation and expiry are connected, but they perform different functions.

Latest shipment date

This is the deadline for shipment under the credit. The shipment date is determined from the applicable transport document and relevant rules—not necessarily the booking date or the day goods leave the factory.

An extension of the LC’s latest shipment date gives additional shipping time. It does not automatically extend the document-presentation period or the credit’s expiry.

Document-presentation period

This controls how quickly documents must be presented after shipment. Read the credit’s specific requirement rather than assuming a standard period applies.

Under UCP 600, a presentation including one or more original transport documents subject to Articles 19–25 must generally be made no later than 21 calendar days after shipment, unless the credit modifies that requirement. Presentation must also occur no later than the credit’s expiry date, subject to applicable extensions under the rules.

That 21-day rule should not be applied indiscriminately to every document package. Ask the nominated or issuing bank to clarify the requirement if the transport-document structure is unusual.

Expiry date and place for presentation

Expiry is the outer limit for presentation under the credit, subject to applicable rules and wording. The place for presentation also matters: documents must reach a bank authorized to receive presentation at the permitted place within the required timeframe.

When requesting an extension of a letter of credit’s expiry date, work backwards from the revised shipment plan. Allow time for document issuance, checking, correction and delivery to the bank.

For example, moving the latest shipment date by ten days while leaving expiry unchanged may compress the usable presentation window. Extending expiry alone will not cure a shipment made after an unchanged latest shipment date.

Deadline checklist:

• Does the revised shipment fit the latest shipment date?
• Can all required documents be obtained and presented within the presentation period?
• Will presentation occur by expiry at the correct place?
• Is there practical time to correct and re-present documents within the applicable deadlines?

3. Agree the commercial revision before requesting the amendment

The buyer and seller should settle the operational change before asking banks to implement it. Banks should not have to interpret unresolved commercial negotiations.

Document agreement on:

• Revised quantity, value and delivery schedule.
• Responsibility for additional freight, storage or insurance costs.
• Allocation of issuing, advising and confirming bank amendment charges.
• Any effect on inspection arrangements or required certificates.
• What happens if the amendment is delayed, rejected or issued incorrectly.

Use a realistic schedule supported by production and logistics teams. A short extension that immediately needs another amendment can generate additional fees and uncertainty.

For buyers seeking safer payment terms, the goal is not simply to add documentary conditions. Require documents that serve a clear commercial purpose and that the seller can obtain. Under an LC, banks examine documents rather than verifying the goods or the seller’s actual performance. An LC therefore does not, by itself, guarantee product quality.

4. Follow the letter of credit process for a formal amendment

The letter of credit amendment process normally involves the following steps. Bank procedures vary, so confirm submission requirements early.

Step 1: The applicant requests the amendment

The buyer, as applicant, submits instructions to the issuing bank. The request should identify the credit, specify exact changes and address related provisions together.

For a delay, that may mean changing the latest shipment date and expiry while checking whether the presentation period remains workable. For a larger order, it may also mean increasing the credit amount and revising quantity descriptions.

Step 2: The issuing bank reviews the request

An applicant’s instruction does not guarantee approval. The issuing bank may need to review its exposure, available facilities, compliance requirements and the feasibility of the proposed wording.

The bank then issues the amendment if approved. A draft, application receipt or message stating “the bank is processing it” is not equivalent to an issued amendment.

Step 3: The amendment is advised to the beneficiary

The amendment is normally transmitted through the banking channel to the beneficiary. Under UCP 600, an advising bank that advises an amendment signifies that it has satisfied itself as to its apparent authenticity and that its advice accurately reflects the amendment received.

Advice alone does not create an undertaking to honour or negotiate by an advising bank that is not confirming the credit.

The seller, as beneficiary, should review the actual advised amendment against the agreed change register. Check the credit reference, amendment sequence, dates, amounts and any unexpected conditions.

Step 4: The beneficiary accepts or rejects it

The beneficiary should communicate its decision promptly through the bank that advised the amendment. Explicit, recorded acceptance is a strong operational control, even though UCP 600 also provides a mechanism for acceptance through presentation.

Keep the original credit, all amendments and acceptance records together. The latest message alone may not show the complete operative terms.

5. Understand beneficiary acceptance under UCP 600

Under UCP 600, a credit cannot be amended without the agreement of the issuing bank, the confirming bank, if any, and the beneficiary, subject to the rules allowing an amendment to be advised without extending confirmation, discussed below. The issuing bank is irrevocably bound by an amendment when it issues it.

For the beneficiary, however, the original credit terms—or terms incorporating previously accepted amendments—remain in force until the beneficiary accepts the new amendment.

Silence is not acceptance

The beneficiary should notify acceptance or rejection. If it does not, a presentation complying with the credit and a not-yet-accepted amendment constitutes notification of acceptance of that amendment under UCP 600. The credit is amended accordingly from that point.

A provision saying an amendment becomes effective unless rejected within a specified time is disregarded under those rules. Do not base shipment decisions on an assumption that silence means consent.

Partial acceptance is not permitted

Beneficiary acceptance applies to the amendment as a whole. Under UCP 600, partial acceptance is not allowed and is deemed rejection of the amendment.

If one amendment extends shipment time but also adds an unacceptable inspection requirement, the beneficiary cannot accept only the extension. Request a revised amendment through the banking channel, and ensure the records clearly identify which amendments have been accepted or rejected.

6. Check whether confirmation covers the amendment

If the credit is confirmed, do not assume the amendment carries the same protection automatically.

Under UCP 600, a confirming bank may extend its confirmation to an amendment and becomes irrevocably bound when it advises that amendment. It may instead advise the amendment without extending its confirmation, provided it informs the issuing bank without delay and informs the beneficiary in its advice.

Ask explicitly:

• Does confirmation extend to this amendment?
• Does it cover the revised amount and deadlines?
• Are additional charges or conditions involved?
• If confirmation is not extended, what undertaking remains available from each bank?

A beneficiary may otherwise plan a later or larger shipment without understanding the limits of the confirming bank’s commitment. Obtain clarification before relying on confirmation for the revised transaction.

7. Apply a pre-shipment release checklist

Before releasing cargo, the exporter’s commercial, logistics and finance teams should verify:

• The formal amendment has been received through the appropriate banking channel.
• Its wording matches the agreed commercial revision.
• Acceptance has been addressed and recorded.
• Shipment, presentation and expiry deadlines work together.
• The amount, quantity, routing and document requirements are achievable.
• Any required extension of confirmation is established.
• The complete operative credit is available to document preparers.

Shipping while an amendment remains pending is a risk decision, not an administrative shortcut. If shipment still complies with the existing credit, the pending request may not prevent a complying presentation. If shipment depends on the requested change, the exporter risks presenting discrepant documents if the necessary amendment is not issued and accepted.

Do not treat an applicant’s promise to waive discrepancies as equivalent to a complying presentation. An applicant’s waiver does not itself oblige the issuing bank to honour discrepant documents. If timing no longer works, discuss postponement or a separately agreed payment arrangement before shipment.

Frequently asked questions

Can a supplier email amend a letter of credit?

No. A supplier’s email agreeing to a commercial change does not itself amend the issuing bank’s undertaking. Arrange the formal bank amendment and address beneficiary acceptance.

Does extending expiry also extend the latest shipment date?

No. They are separate terms. Request a shipment-date extension where needed and check the presentation period and expiry together.

Can the beneficiary accept only part of an amendment?

Not under UCP 600. Partial acceptance is deemed rejection. If one provision is unacceptable, request a revised amendment rather than relying on selected changes.

Is it safe to ship while an amendment is pending?

Assess the operative credit terms and transaction risks first. If shipment would breach the existing credit, a pending request or buyer assurance does not provide the same protection as an issued and accepted amendment, with confirmation extended where required.

Build change control into your next trade

A sound amendment process connects the revised commercial deal, the bank’s undertaking and the documents needed for payment. Keep those three aligned before cargo moves.

Ready to build your next trading relationship? Explore IMEX Center, and make clear shipment schedules, documentary requirements and amendment responsibilities part of your negotiations.