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What is a Letter of Credit?

Letter of Credit (L/C) is a bank payment undertaking for trade — types, parties, and document compliance.

Reading time: 9 min read·Updated: 2026-06-30·Author: Trade31

An L/C is a conditional bank promise to pay the beneficiary when compliant documents are presented.

Table of Contents

  1. Definition
  2. Parties and Flow
  3. Common Types
  4. Documents Under L/C

Definition

A Letter of Credit (L/C) is a written undertaking by a bank (issuing bank) at the request of the buyer (applicant) to pay the seller (beneficiary) a stated amount if documents strictly comply with L/C terms.

It shifts payment risk from buyer credit to bank credit — widely used in first-time or high-value export deals.

Parties and Flow

Applicant (buyer), beneficiary (seller), issuing bank, advising bank, confirming bank (optional). Seller ships and presents docs to bank; bank checks compliance before payment.

Discrepancies → refusal or buyer waiver — major source of export disputes.

Common Types

Irrevocable L/C (UCP 600 default), confirmed L/C (confirming bank adds guarantee), at sight vs usance (deferred payment).

Special forms: transferable, standby — each changes risk allocation.

Documents Under L/C

Typically commercial invoice, packing list, B/L or AWB, certificate of origin, insurance — all must match L/C fields (latest shipment date, ports, descriptions).

Align Incoterms with who pays freight/insurance on documents.

Examples

Discrepancy

B/L dated one day after latest shipment date — bank refuses until buyer accepts discrepancy.

Confirmed LC

Exporter in high-risk country requests confirmation — second bank guarantees payment.

FAQ

Is L/C same as bank guarantee?
No — L/C pays against compliant trade documents; guarantee covers performance/default differently.
Who pays L/C bank fees?
Split per contract — applicant often pays opening, beneficiary may pay negotiation.
Can L/C be amended?
Yes with all parties consent — delays shipment if not coordinated.
Soft clause risk?
Clauses requiring buyer approval give buyer control — avoid when possible.
L/C under FOB?
Common — seller must still meet B/L requirements in L/C text.

Related Tools

  • FileText

    Commercial Invoice Generator

    Generate commercial invoice documents for export shipments.

  • Calculator

    FOB Calculator

    Calculate FOB price from product cost, packaging, inland freight, and export charges. Runs locally in your browser.

  • Ship

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    Calculate CIF price from FOB, freight, and insurance rate. Local browser processing.

Related Articles

  • What is a Bill of Lading?

    Learn what a bill of lading is — original B/L, telex release, sea waybill, and role in export documentation.

  • What is a Commercial Invoice?

    Commercial invoice requirements — mandatory fields, HS codes, Incoterms, and customs clearance role.

  • What is T/T Payment?

    Telegraphic Transfer (T/T) is wire payment for international trade — advance, balance, and risk tips.

  • L/C vs T/T Payment

    Compare Letter of Credit and T/T for export payment — security, cost, speed, and when to use each.

Related Resources

  • Commercial Invoice Excel Template (Professional)

    Enterprise-ready commercial invoice workbook with Invoice, Packing List, and Instruction sheets. Includes Seller/Buyer, Incoterms® 2020, HS codes, bank details, and filled examples aligned with international trade practice.

Conclusion

Master UCP 600 and document match before production. Compare with T/T Payment and L/C vs T/T.

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