Introduction
A documentary letter of credit follows a structured sequence from the buyer's request for issuance to final payment or settlement.
For CAIIB BFM, it is important to understand not only what an LC is, but also how it moves operationally through banks.
A typical transaction involves:
LC application → Issuance → Advising → Amendment, if required → Shipment → Document presentation → Examination → Honour or refusal → Settlement
Each stage creates different responsibilities for the applicant, issuing bank, advising or confirming bank and beneficiary.
The current international framework remains UCP 600, the latest revision of the Uniform Customs and Practice for Documentary Credits. It came into effect on 1 July 2007 and contains 39 articles governing documentary-credit operations.
International Standard Banking Practice ISBP 821 supplements UCP 600 by explaining how standard banking practice should be applied while examining documents. ICC continues to identify ISBP 821 as the current practitioner framework alongside UCP 600.
Learning Objectives
After studying this topic, you should be able to:
explain the complete lifecycle of a documentary LC;
understand how an issuing bank creates its undertaking;
distinguish issuance from advising and confirmation;
explain how amendments become effective;
understand presentation requirements and important timelines;
explain how banks examine documents;
distinguish complying and discrepant presentations; and
understand honour, negotiation, reimbursement and final settlement.
Overall LC Transaction Cycle
Consider an Indian importer purchasing machinery from an overseas exporter.
The buyer and seller first enter into a commercial contract. The buyer then requests its bank to issue an LC in favour of the exporter.
The issuing bank transmits the credit, usually through another bank in the exporter's country. That bank advises the LC to the beneficiary.
The exporter reviews the credit. If any condition is unacceptable or cannot be complied with, an amendment may be requested.
After the LC becomes workable, the exporter ships the goods and prepares the required documents.
The documents are presented to the nominated, confirming or issuing bank as applicable. Banks examine them to determine whether the presentation complies with:
the terms and conditions of the credit;
UCP 600; and
international standard banking practice.
If the presentation complies, the applicable bank honours or negotiates according to the terms of the credit. If it does not comply, UCP 600 provides rules governing refusal.
1. LC Application and Issuance
The process normally begins when the buyer, known as the applicant, approaches its bank and requests issuance of an LC in favour of the seller or beneficiary.
The LC application should reflect the commercial agreement between buyer and seller.
Typical information includes:
applicant and beneficiary;
amount and currency;
expiry date and place;
availability of the credit;
latest shipment date;
description of goods;
transport requirements;
documents required;
insurance requirements where relevant;
whether partial shipments are permitted;
whether transshipment is permitted where relevant;
payment tenor;
confirmation instructions; and
applicable rules such as UCP 600.
Although the sales contract is the reason for opening the LC, the LC becomes a separate transaction from that contract.
The issuing bank should therefore ensure that the credit contains clear documentary conditions rather than vague requirements dependent on facts the bank cannot determine from documents.
Bank's Credit Decision Comes Before Issuance
Issuing an LC creates a contingent liability for the bank.
Before issuance, the bank normally assesses matters such as:
applicant's creditworthiness;
sanctioned LC limit;
margin requirements;
nature of goods;
transaction legitimacy;
country and bank risk;
compliance requirements; and
applicable regulatory restrictions.
In Indian banking practice, an import LC must also satisfy applicable FEMA, RBI, sanctions, KYC/AML and the bank's internal credit and trade-finance requirements.
When Does the Issuing Bank Become Bound?
Under UCP 600 Article 7, the issuing bank has a definite undertaking to honour a complying presentation. UCP 600 treats documentary credits as irrevocable arrangements.
This means the issuing bank cannot treat the LC as a mere expression of intention.
2. Transmission and Advising of the LC
An issuing bank may transmit the LC directly to the beneficiary, but international LCs are commonly routed through another bank.
That bank may act as the advising bank.
UCP 600 Article 9 deals with advising credits and amendments.
Role of the Advising Bank
The advising bank communicates the LC to the beneficiary.
Its important function is to satisfy itself as to the apparent authenticity of the credit or amendment and accurately reflect the terms received.
The beneficiary therefore receives the LC through a banking channel rather than relying solely on instructions sent directly by an unknown buyer.
Advising Does Not Mean Confirmation
This distinction is fundamental.
An advising bank that merely advises a credit does not automatically add its own payment undertaking.
A confirming bank, by contrast, adds a separate undertaking in addition to that of the issuing bank.
Therefore:
Point | Advising Bank | Confirming Bank |
|---|---|---|
Communicates LC | Yes | Usually may also do so |
Adds own UCP confirmation | No, unless separately confirmed | Yes |
Independent undertaking to beneficiary | Not merely by advising | Yes after confirmation |
Main role | Authentication and communication | Additional payment protection |
3. Beneficiary's Review of the LC
After receiving the credit, the beneficiary should review it carefully before shipment.
The exporter should check whether:
the beneficiary's name is correct;
amount and currency match the contract;
shipment date is achievable;
expiry date provides enough time;
place of presentation is workable;
goods description is correct;
required documents can actually be obtained;
insurance requirements can be fulfilled;
transport conditions are practical;
payment tenor matches the contract; and
any unusual certificate can be produced by the required party.
A major operational error is to ship goods first and only later discover that a documentary requirement cannot be satisfied.
ICC guidance emphasises clarity and workability of documentary-credit terms because unclear or excessive requirements increase discrepancy risk.
4. Amendment of a Letter of Credit
Commercial circumstances may change after issuance.
Examples include:
increase or reduction in LC amount;
extension of shipment date;
extension of expiry date;
change in goods description;
change in quantity;
change in documents required;
change in shipment route;
change in payment tenor; or
addition or removal of other conditions.
Such changes are made through an LC amendment.
Amendment Is Not Unilateral
Under UCP 600 Article 10, an irrevocable credit cannot be amended or cancelled without the agreement of the issuing bank, the confirming bank if any, and the beneficiary, as applicable.
This prevents the applicant from changing the beneficiary's payment protection after the credit has been issued merely because commercial circumstances have changed.
Beneficiary May Accept or Reject an Amendment
An amendment does not automatically bind the beneficiary simply because the applicant requested it and the issuing bank transmitted it.
The beneficiary has an important role in accepting or rejecting the amendment.
The original credit continues to remain relevant until an amendment becomes effective for the beneficiary under the applicable UCP rules.
Partial Acceptance of an Amendment
A beneficiary cannot normally pick favourable parts of a single amendment and reject the rest.
An amendment should be considered as a whole for acceptance or rejection.
This is an important statement-based examination area.
Amendment vs New LC
Basis | Amendment | New LC |
|---|---|---|
Existing credit | Continues with agreed changes | Separate new undertaking |
Purpose | Modify existing terms | Create a fresh transaction |
Beneficiary involvement | Relevant to effectiveness of amendment | New credit separately advised |
LC number | Normally same credit reference | Separate credit reference |
Previous terms | Continue except as amended | Governed by new credit |
5. Shipment and Preparation of Documents
Once the beneficiary is satisfied with the LC terms, shipment or performance takes place according to the credit.
The beneficiary then prepares the documents stipulated in the LC.
Common documents may include:
commercial invoice;
bill of lading;
air waybill;
multimodal transport document;
insurance policy or certificate;
packing list;
certificate of origin;
inspection certificate;
weight certificate; and
beneficiary's certificate.
Not every LC requires all these documents. The exact requirements depend on the transaction.
Banks examine documents, not the physical goods or services. This principle remains central to UCP 600.
6. Presentation of Documents
Presentation means delivery of documents under a documentary credit to the issuing bank or nominated bank as permitted by the credit.
The beneficiary must carefully check:
where presentation is permitted;
expiry date;
period for presentation;
whether original documents are required;
number of copies;
latest shipment date; and
documentary conditions.
Expiry Date and Place for Presentation
The credit should specify an expiry date and place for presentation.
A presentation after expiry will normally not constitute a complying presentation merely because the goods were shipped in time.
Therefore, remember:
Shipment within time ≠ presentation within time.
Both requirements may need to be satisfied.
21-Day Presentation Rule
Where the presentation includes one or more original transport documents subject to the relevant UCP transport articles, UCP 600 Article 14(c) provides a presentation period of not later than 21 calendar days after the date of shipment, unless the credit specifies another period, but in any event presentation must not be later than the LC expiry date.
This means two deadlines must often be checked:
Presentation deadline = Earlier of applicable presentation period or LC expiry date
For understanding only:
Latest permissible presentation = earlier of the applicable presentation-period deadline and LC expiry
Refer to the Formula Section for a detailed explanation, variables, and solved examples.
Presentation Is Separate from Shipment
Suppose shipment takes place on the last permitted shipment date.
That does not automatically mean the beneficiary can present documents whenever convenient thereafter.
The LC expiry and applicable presentation period must still be satisfied.
7. Examination of Documents by Banks
After presentation, the relevant bank examines the documents to determine whether they constitute a complying presentation.
UCP 600 Article 14 provides the standard for examination. Banks decide on compliance on the basis of the documents alone.
The bank considers:
LC terms and conditions;
applicable UCP 600 provisions; and
international standard banking practice.
Data Need Not Always Be Identical
A common misconception is that every word appearing in every document must be absolutely identical.
UCP 600 recognises that data, when read in context, need not necessarily be identical but must not conflict with the credit, the document itself or another stipulated document.
ISBP 821 provides additional practical guidance for document examination.
Five Banking Days for Examination
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.
This period is important.
Do not confuse:
five banking days for examination; with
the 21 calendar days that may apply to presentation after shipment.
Requirement | Time Concept |
|---|---|
Bank's document examination | Maximum five banking days following presentation |
Transport-document presentation rule | Normally within 21 calendar days after shipment, subject to LC expiry |
LC expiry | As specified in the credit |
8. Complying Presentation
If the issuing bank determines that the presentation complies, it must honour according to its undertaking.
A confirming bank that determines the presentation complies must honour or negotiate according to the confirmation and credit terms.
UCP 600 Article 15 addresses the treatment of a complying presentation.
The method of settlement depends on how the credit is available.
It may be available by:
sight payment;
deferred payment;
acceptance; or
negotiation.
9. Discrepant Presentation
If documents do not comply with the LC, the presentation is discrepant.
Common examples may include:
late shipment;
late presentation;
expired LC;
missing document;
incorrect goods description;
insufficient insurance coverage;
inconsistent data;
unauthorised alteration;
incorrect transport document; or
missing required signature.
The issuing bank is not required to honour a presentation merely because the applicant ultimately receives the goods.
The documentary position must first be considered.
Notice of Refusal
UCP 600 Article 16 deals with discrepant documents, waiver and notice.
Where the bank decides to refuse the documents, the notice must comply with UCP requirements and be sent no later than the close of the fifth banking day following the day of presentation.
The refusal notice must clearly communicate the bank's decision and discrepancies in accordance with UCP 600.
A bank that fails to comply with the Article 16 requirements may lose the ability to rely on the discrepancies against the presenter.
This concept is known as preclusion and is particularly important for exam questions.
10. Applicant Waiver of Discrepancies
Where the issuing bank finds discrepancies, it may approach the applicant to seek a waiver.
However, this does not change the bank's responsibility to comply with the UCP refusal timeline.
The applicant's willingness to accept discrepant documents may allow the issuing bank to proceed, but the applicant does not independently rewrite UCP responsibilities between the bank and presenter.
This is another common conceptual trap.
11. Honour, Negotiation and Settlement
Once a complying presentation has been accepted, financial settlement follows according to the credit's availability.
Sight Payment
Under a credit available by sight payment, payment is made following determination of a complying presentation according to the applicable undertaking.
Deferred Payment
The bank incurs a payment obligation payable at a determinable future date.
Acceptance
Where the credit is available by acceptance, the relevant bank accepts the applicable time draft and pays at maturity.
Negotiation
UCP 600 gives negotiation a specific meaning involving the purchase of drafts and/or documents under a complying presentation by the nominated bank through advancing or agreeing to advance funds.
A draft is not necessarily required for every negotiation credit. ICC guidance confirms that negotiation may occur with or without a draft where the documentary credit is structured accordingly.
12. Interbank Reimbursement
The bank that honours or negotiates may need to obtain reimbursement from another bank.
An issuing bank may authorise a separate reimbursing bank to honour a reimbursement claim from the nominated or claiming bank.
UCP 600 Article 13 addresses bank-to-bank reimbursement arrangements.
The important distinction is:
Payment to beneficiary and reimbursement between banks are related but separate operational steps.
The issuing bank ultimately recovers the amount from the applicant under their separate banking arrangement.
Practical Banking Application
Suppose an Indian company imports industrial equipment.
The company requests its bank to open an LC for USD 500,000 in favour of the overseas supplier.
The issuing bank sanctions the facility and issues the credit subject to UCP 600.
An overseas bank advises it to the exporter.
The exporter notices that the LC requires shipment by 15 September, while the supplier can ship only by 25 September.
The exporter should seek an amendment before shipment.
If the issuing bank issues an amendment extending shipment to 30 September and the beneficiary accepts it, the transaction proceeds under the amended terms.
After shipment, the exporter presents the required documents.
The relevant bank checks:
whether shipment occurred within the permitted date;
whether presentation occurred before expiry and within the applicable presentation period;
whether all stipulated documents have been submitted; and
whether the documents comply with the LC and UCP 600.
If the presentation complies, the LC is honoured or negotiated according to its availability.
If discrepancies are found, the bank must follow Article 16 requirements for refusal.
This sequence shows why LC operations involve both credit risk management and precise documentary processing.
CAIIB Exam Focus
1. Issuance Creates a Bank Undertaking
Do not treat an issued LC as merely the buyer's promise to pay.
The issuing bank has its own undertaking under the documentary credit.
2. Advising Is Not Confirmation
The advising bank's role is different from that of the confirming bank.
A bank does not acquire confirmation liability merely by transmitting or authenticating an LC.
3. Amendments Require Proper Agreement
The applicant alone cannot unilaterally impose an amendment on the beneficiary after an irrevocable credit has been issued.
4. Shipment Date and Expiry Date Are Different
A beneficiary may ship within time but still make a late presentation.
Read every date separately.
5. Calendar Days and Banking Days Must Not Be Mixed
Remember:
presentation after shipment may involve calendar days;
bank examination uses banking days.
6. Banks Examine Documents
Banks do not decide whether the physical goods are satisfactory merely because they examine the shipping documents.
7. Five Banking Days Is a Maximum Examination Period
Do not interpret five banking days as meaning that every bank must wait until the fifth day.
The bank may complete examination earlier.
8. Applicant Waiver Does Not Erase UCP Procedure
Even when the applicant is willing to accept discrepancies, banks must handle the documentary decision and refusal process correctly.
9. Settlement Method Depends on Availability
Sight payment, deferred payment, acceptance and negotiation should not be treated as identical payment mechanisms.
Common Exam Traps
Trap 1: “The Buyer Can Cancel the LC Before Shipment”
Incorrect for an irrevocable documentary credit merely on the buyer's unilateral instruction.
UCP 600 credits are irrevocable, and amendment or cancellation requires the relevant parties' agreement.
Trap 2: “If an Advising Bank Advises the LC, It Must Pay”
Incorrect.
Advice by itself does not create the additional undertaking associated with confirmation.
Trap 3: “An Amendment Becomes Binding as Soon as the Issuing Bank Sends It”
Misleading.
The beneficiary's position and, where applicable, confirming bank requirements must be considered under Article 10.
Trap 4: “Shipment Before the Latest Shipment Date Guarantees Payment”
Incorrect.
Documents must also be presented in accordance with the LC's presentation requirements and before expiry.
Trap 5: “Documents Must Be Presented Exactly 21 Days After Shipment”
Incorrect.
Twenty-one calendar days is normally the maximum period applicable under Article 14(c) where relevant, unless another period is specified, and the LC expiry date can create an earlier deadline.
Trap 6: “Banks Get Five Calendar Days to Check Documents”
Incorrect.
UCP 600 uses a maximum of five banking days following the day of presentation.
Trap 7: “If the Applicant Accepts Discrepancies, the Bank Can Ignore Article 16”
Incorrect.
Waiver does not eliminate the bank's responsibility to handle refusal correctly and within the UCP timeframe.
Trap 8: “Payment and Reimbursement Are the Same Transaction”
Incorrect.
Payment or negotiation concerns settlement with the beneficiary, while reimbursement may occur separately between banks.
Memory Techniques
Remember the complete LC operational cycle as:
I-A-A-S-P-E-S
I – Issue: Issuing bank opens the LC. A – Advise: Advising bank communicates it. A – Amend: Terms are changed if required. S – Ship: Beneficiary ships according to the LC. P – Present: Required documents are presented. E – Examine: Banks check documentary compliance. S – Settle: Complying presentation is honoured or negotiated and reimbursement follows.
For the three dates commonly confused in LC questions, remember:
S-P-E
S – Shipment dateP – Presentation periodE – Expiry date
All three may affect whether a presentation is compliant.