Trade Finance
Also known as: Letter of credit, Documentary credit, L/C
A bank stands between two strangers on opposite sides of the world so that neither has to trust the other. The oldest financial product still in daily use.
1 · SnapshotThe one idea to remember
2 · BeginnerWhat is it, really?
An exporter in one country ships goods to an importer in another. Each has the same problem: the exporter does not want to ship before being paid, and the importer does not want to pay before receiving goods. Neither can enforce a contract in the other's courts at reasonable cost.
A letter of credit resolves it by inserting a bank. The importer's bank promises to pay the exporter — not when the goods arrive, but when the documents arrive and match what the credit demands:
- Bill of lading (proof the goods were shipped)
- Commercial invoice, packing list, insurance certificate, inspection certificate
The bank never inspects the goods. It reads paperwork against a checklist and pays if it matches. That sounds like a weakness and is in fact the design: banks are good at checking documents and terrible at valuing cargo.
a paymentsomething deliveredonly if a condition is metnot a payment
The exporter stops relying on a foreign buyer it cannot sue cheaply, and starts relying on a bank. That substitution is the product, and it is not free.
Before anything ships
- The importer → The banks The importer pays for the promise and ties up borrowing capacity to get it. This is the real cost of the instrument to the buyer.
- The banks → The exporter The exporter now has a claim on a bank rather than on a company on the other side of the world.
After shipment
- The exporter → The banks Bill of lading, invoice, insurance, inspection certificate. Compliant documents trigger payment; delivered goods do not.
- The banks → The exporter Less the confirming bank's own fee where a second bank has added its promise. The exporter is paid before the importer has.
Afterwards
- The importer → The banks And gets the documents that let it collect the goods. Until then the bank effectively holds title to the cargo.
If the paperwork is wrong
- The banks → The exporter Banks deal in documents, not in goods. A misspelt port can hold up payment on a shipment that arrived perfectly.
The two banks, and how they square upafter the trade
a paymentsomething deliverednot a payment
Setting it up
- Issuing bank → Advising bank A bank in the exporter's country confirms the credit is genuine, and may add its own promise on top.
On presentation
- The exporter → Advising bank Against the credit's terms and an international rulebook, not against the contract of sale.
- Issuing bank → Advising bank Settled between them under the credit's terms once the documents are accepted.
- Asset class
- Money markets (short-term credit)
- Instrument type
- Bank undertaking against documents
- Traded
- Bilateral; secondary market in trade receivables
- Typical users
- Importers, exporters, commodity traders, trade-finance funds
Which risks decide the outcome
Not how risky this is, and not a rating — there is deliberately no total. It says which of five failure modes drives what happens here, in the same order on all 129 products so they can be compared. This publication's own reading; see the notice below.
- Marketmatters
- Creditdecides it
- Liquiditymatters
- Fundingbarely applies
- Operationaldecides it
What decides it here. Banks deal in documents, not in goods. A misspelt port can hold up payment on a shipment that arrived perfectly.
3 · IntermediateHow it works in practice
The family of instruments
- Letter of credit — the bank pays on compliant documents. The workhorse.
- Confirmed letter of credit — a second bank, usually in the exporter's country, adds its own promise. This is what converts emerging-market bank risk into local bank risk, and it is the point of confirmation.
- Standby letter of credit — pays only if the buyer fails to pay by other means. Economically a guarantee wearing an L/C's legal clothes.
- Documentary collection — the bank handles documents but promises nothing. Cheaper, and far weaker.
- Supply chain finance — the buyer's bank pays suppliers early against approved invoices, at the buyer's credit rating rather than the supplier's.
Why the credit risk is unusually low
| Feature | Effect |
|---|---|
| Short tenor | Typically 30–180 days — little time for a borrower to deteriorate |
| Self-liquidating | The transaction generates the cash that repays it |
| Goods as collateral | Documents give control over the cargo |
| Historic loss rates | Very low across cycles, including 2008 |
4 · AdvancedPricing & valuation
Pricing: a short-dated credit spread with a fee attached
What the symbols mean
- cthe coupon rate
- The credit component follows the issuing bank's own funding spread — the same expected-loss arithmetic as any short-dated exposure, with an unusually high recovery assumption because of the goods.
- The confirmation charge is a country-risk price and moves with sovereign CDS spreads. It is one of the few places where country risk is quoted directly to a commercial counterparty.
- Processing costs are real and, historically, large relative to the credit charge — the industry runs on paper, couriers and manual document checking to a degree that surprises outsiders.
The doctrine of strict compliance, and its consequence
Banks pay against documents that comply exactly. A misspelled name or a date one day outside the window is a valid reason to refuse, even when everyone knows the goods arrived. Industry surveys have repeatedly found that a large share of first presentations are rejected for discrepancies. That is not dysfunction — it is what makes the bank's promise financeable, because the bank's obligation is defined by a checkable document set rather than by a commercial dispute it cannot adjudicate.
Trade finance as an asset class
- The appeal: short duration, low historical losses, floating-rate returns and genuinely low correlation with securities markets — a real diversifier in the sense the diversification page means.
- The catch: it is operationally intensive, illiquid, and exposed to fraud rather than to credit. The commodity-trade-finance failures of 2020 involved the same cargo pledged repeatedly to different lenders — a documentation failure, not a market one.
- The gap: development banks estimate an unmet demand for trade finance running into the trillions, concentrated in smaller firms in emerging markets, because compliance costs exceed the fee on a small transaction. That gap is the sector's real story.
The formulas above are standard textbook formulations, simplified for teaching. They explain the mechanism — they are not a valuation tool, and they will not reproduce a dealer’s price.
5 · Desk notesHow practitioners think about it
Now say it back
Close the page and give Trade Finance in four sentences. It takes a minute and it is the only way to find out whether reading it was enough.
- Who wants what — two parties wanted opposite things badly enough to write it down.
- What the contract obliges, and when — not the payoff; the obligation.
- Where the money comes from — name the source, or you have described a hope.
- What makes it lose — the ordinary way, not the dramatic one.
Put Trade Finance beside any other instrument →
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