Trade finance payments
When a buyer and seller who have never met trade across borders, banks and documents stand in for trust. Follow how a letter of credit's payment leg settles.
L0 Explain simply
Cross-border trade has an old problem: the seller does not want to ship before being sure of payment, and the buyer does not want to pay before being sure of the goods. Banks solve it by inserting a promise. In a letter of credit, the buyer's bank promises to pay the seller once the seller presents documents proving the goods were shipped as agreed. The exporter, Example Supplies Ltd, ships knowing a bank — not just the importer, Demo Trading Ltd — stands behind the payment; the importer knows the bank will only pay against the right documents. A lighter alternative is a documentary collection, where banks pass the shipping documents along and collect payment but do not themselves promise to pay — less protection, lower cost. (SYNTHETIC / TRAINING ONLY — every firm named here is fictional.) The through-line for a payments reader is that the goods, the documents, and the money each move on their own track, and the bank's promise is what links them.
L1 Core concepts
A letter of credit names a few precise roles. The issuing bank — Bank Alfa, the importer's bank — makes the promise to pay and takes on the importer's credit risk. Because the exporter is in another country, a bank there is brought in: the advising bank authenticates the credit and passes it to the exporter, and when it is also authorised to check documents and pay, it acts as the nominated bank. The document that usually anchors the whole thing is the bill of lading, the carrier's receipt for the goods and a title document — whoever holds it can claim the cargo, which is why banks handle it so carefully. The banks are dealing in documents, not goods: they never see the shipment, only the paperwork that is supposed to represent it. If the documents match the credit exactly, the promise is triggered and payment follows; if they do not, the bank is not obliged to pay until the mismatch is resolved.
L2 Practitioner view
This choreography runs on a specific message family. Trade-finance instructions travel as Swift category-7 messages: an MT700 issues a documentary credit, an MT707 amends it, an MT750 raises a discrepancy advice, and an MT754 advises that documents have been presented and are being paid or accepted. The exam-room concept is discrepant documents: if the presented documents do not comply on their face with the credit — a wrong date, a missing endorsement, an amount that does not tie out — the issuing bank may refuse to pay until the importer waives the discrepancy or the documents are corrected. Note where credit risk actually sits: the exporter is looking to the issuing bank's promise, not the importer's, which is the whole value of the instrument. And note the two tracks again — the documents move bank to bank while the money settles separately across the banks' correspondent accounts, the subject of the flow attached to this topic. The comparison here sets a letter of credit against plain open-account trade so the risk trade-off is explicit.
L3 Technical details
For the reader tracing the money rather than the documents: the payment leg of a letter of credit is ordinary correspondent settlement, triggered by a documentary event. When a compliant presentation is accepted, the paying bank owes the exporter, and that obligation is discharged the same way any cross-border interbank obligation is — across nostro and vostro accounts between the banks, or through a common correspondent, with the exporter finally credited by its own bank. The Swift MT category-7 standard defines the messages that carry each step: the MT700 that issues the credit, the MT754 that advises payment or acceptance against a presentation, and the MT750 that signals discrepancies when a presentation does not comply. Two operational realities are worth holding. First, the documentary check and the payment are distinct events — a discrepancy stops the payment obligation from crystallising even though the goods may already have shipped. Second, screening still applies: the parties, the goods description, and the banks in the chain are checked like any cross-border payment, and a hit can hold settlement regardless of documentary compliance.
Sources & standards2
- Scheme-specific rule
Swift Standards MT (annual standards releases) ↗ — Swift · category 7 documentary credits and guarantees (MT700/707/750/754)
Full field-level specifications live in the Swift Knowledge Centre User Handbook behind a swift.com login. Coexistence for in-scope FI-to-FI payment instructions ended on 22 November 2025, but treatment differs by MT: some instructions are NAKed and selected messages can enter temporary, chargeable contingency conversion. Reporting, initiation, investigations and correspondence follow separate roadmaps.
- Simplified educational illustration
Payments Signal editorial teaching models — Payments Signal
Used wherever diagrams, scenarios, figures, or example values are didactic constructions rather than sourced facts; every such use carries a simplifications disclosure. All people, companies, banks, and list entries in examples are fictional.
SEE THE PAYMENT MOVE
Read the steps as text
- 06ProcessingBank Alfa examines the documentsBank Alfa (issuing bank)
Bank Alfa examines the presentation against the credit's terms. Payment is triggered only if the documents comply on their face — a wrong date or a missing endorsement can break it.
Screening checkpoint: Trade-finance screening — Parties, goods description, and banks in the chain are screened; a hit can hold settlement regardless of documentary compliance.
- 08SettlementThe payment leg settles between the banksBank Alfa (issuing bank) → Meridian Bank (advising / nominated)
The payment obligation is discharged across the banks' correspondent accounts — Bank Alfa's nostro debited, Meridian's account credited — the same way any cross-border interbank obligation settles. The documentary event triggered it; correspondent banking settles it.
- DR Bank Alfa nostro serving Meridian — USD 480,000.00
- CR Meridian settlement account — USD 480,000.00
- 09PostingMeridian credits the exporterMeridian Bank (advising / nominated)
Meridian credits Example Supplies. The trade payment is complete end to end: importer's bank promised, documents examined, banks settled, exporter paid — and the importer takes up the documents to collect the goods.
- CR Exporter's account at Meridian — USD 480,000.00
Sources for this topic2
- Scheme-specific rule
Swift Standards MT (annual standards releases) ↗ — Swift
Full field-level specifications live in the Swift Knowledge Centre User Handbook behind a swift.com login. Coexistence for in-scope FI-to-FI payment instructions ended on 22 November 2025, but treatment differs by MT: some instructions are NAKed and selected messages can enter temporary, chargeable contingency conversion. Reporting, initiation, investigations and correspondence follow separate roadmaps.
- Simplified educational illustration
Payments Signal editorial teaching models — Payments Signal
Used wherever diagrams, scenarios, figures, or example values are didactic constructions rather than sourced facts; every such use carries a simplifications disclosure. All people, companies, banks, and list entries in examples are fictional.
Deepest material on this page: L3 — Technical details. Where a topic stops short of implementation depth, that is a deliberate coverage decision, not an oversight — see coverage.