Why Payment Terms Shape the Whole Shipment
How an import is going to be paid for often gets decided in a sourcing negotiation long before a freight forwarder is even booked, but the payment method chosen has a direct effect on how the shipment itself has to be documented, timed and handled. Cash-in-advance, open account, documentary collection and letters of credit all sit on a spectrum between buyer risk and seller risk, and a letter of credit — commonly shortened to LC — is the instrument most importers eventually encounter once order sizes grow or a new supplier relationship hasn't yet built up trust. Understanding how an LC actually works, and where it can go wrong, saves real money and real time, because an LC is unforgiving about paperwork in a way that open account trade simply isn't.
Where an LC Sits Among the Main Payment Methods
Under cash-in-advance, the importer pays before production or shipment, putting all the risk on the buyer that goods will arrive as ordered. Open account is the mirror image — the exporter ships and invoices, trusting the buyer to pay afterward, which favors the buyer and is common between established trading partners. Documentary collection sits in between: a bank handles the exchange of shipping documents for payment or a signed payment undertaking, but the bank doesn't guarantee payment itself, only that documents won't be released until its instructions are followed. A letter of credit goes a step further by substituting the issuing bank's creditworthiness for the buyer's — the bank itself commits to pay, provided the exporter presents documents that comply exactly with the credit's terms.
How a Letter of Credit Actually Works
The mechanics follow a consistent sequence. The importer applies to its bank (the issuing bank) for an LC in the exporter's favor, specifying the amount, the shipment terms, the required documents and the expiry date. The issuing bank sends the credit to the exporter, usually through the exporter's own bank (the advising bank, sometimes also the confirming bank). The exporter manufactures and ships the goods, then assembles the exact documents the credit calls for — typically the commercial invoice, packing list, bill of lading, and often a certificate of origin and an inspection certificate — and presents them to its bank within the credit's validity period. The bank examines the documents strictly against the LC's wording; if everything matches, payment is released or a deferred payment undertaking is issued, and the documents, including the bill of lading that controls the cargo, move forward to the issuing bank and ultimately to the buyer, who uses them to clear customs and take delivery.
Types of Letters of Credit Importers Should Recognize
Most LCs used in China sourcing are irrevocable, meaning they cannot be changed or canceled without the agreement of all parties — a basic protection for the exporter. A confirmed LC adds a second bank's guarantee, usually in the exporter's own country, which matters when the issuing bank sits in a market where its creditworthiness or foreign exchange access is less certain. A revolving LC renews automatically for recurring orders of the same value, useful for importers placing regular repeat purchases with the same supplier. A transferable LC lets the original beneficiary transfer some or all of the credit to a second supplier, which shows up often in trading-company transactions where the LC beneficiary isn't the actual factory. A standby LC functions differently again — it's a safety net that's only drawn on if the applicant fails to perform, closer to a bank guarantee than a primary payment mechanism.
The Documents a Bank Will Scrutinize
Because banks pay against documents, not against physical goods, exact wording matters enormously. The bill of lading presented must match the LC's terms precisely — the right type, the right port pair, on-board and dated within the credit's shipment deadline, and clean rather than claused. Our guide to bill of lading types explained looks at how the negotiable, document-of-title characteristics of an order bill of lading interact with LC terms in more depth. The commercial invoice value, quantities and description need to match the packing list and the underlying purchase order exactly, and any certificate of origin or inspection certificate the credit calls for has to carry the right wording, dates and signatures. A single mismatched detail — a shipment date one day past the LC's latest shipment date, a misspelled consignee name, an invoice total that doesn't reconcile with the unit price times quantity — counts as a discrepancy.
What Happens When Documents Don't Match
A discrepancy doesn't automatically kill the transaction, but it does stop the automatic payment mechanism the LC is designed to provide. The bank will typically notify the exporter of the discrepancy and either request the buyer's waiver to proceed anyway, or return the documents for correction — both of which cost time, and time is exactly what a vessel already at sea or a container already sitting at the destination terminal doesn't have. This is one of the more direct links between trade finance and operational cost: documents held up over a discrepancy can delay cargo release long enough to trigger the same demurrage and detention charges that accumulate whenever a container sits at the terminal past its free time. Building enough lead time between shipment and the LC's document presentation deadline, and working with a freight forwarder who understands what the bank will actually check, reduces how often this happens.
LCs Compared to Other Payment Methods
| Payment Method | Who Bears the Risk | Typical Use Case |
|---|---|---|
| Cash-in-advance | Buyer bears full risk | New or unverified suppliers |
| Open account | Seller bears full risk | Established, trusted relationships |
| Documentary collection | Shared; bank facilitates only | Moderate trust, lower transaction cost |
| Letter of credit | Issuing bank assumes payment risk | Larger orders, new relationships, bank-backed assurance |
Practical Tips for China Importers Using Letters of Credit
- Review the draft LC wording against the actual purchase order before it's opened — corrections after the credit is issued are slower and sometimes require an amendment fee.
- Build a realistic gap between the vessel's sailing date and the LC's latest shipment date, since production delays at a Chinese factory are common enough to plan around.
- Confirm early which bill of lading type the LC requires — a straight bill of lading will not satisfy an LC that calls for a negotiable order bill.
- Share the LC's document requirements with your freight forwarder before booking, so the bill of lading, packing list and any certificates are prepared to match from the outset rather than corrected after the fact.
- Where the issuing bank's standing is uncertain, discuss requesting a confirmed LC with your own bank rather than relying on the issuing bank's credit alone.
Where a Freight Forwarder Fits Into Trade Finance
A freight forwarder doesn't issue or negotiate letters of credit — that's a banking relationship between buyer and seller — but the forwarder's paperwork sits at the center of whether an LC pays out cleanly. The bill of lading, and often the packing list and certificate of origin that travel alongside it, are prepared by or through the forwarder handling the shipment, which means a forwarder who understands LC document requirements can catch a mismatch before it becomes a bank-level discrepancy. RR Brothers and Logistics coordinates shipping documentation for clients trading under letters of credit across our China, India, Middle East and Africa lanes, aligning bill of lading wording, shipment timing and supporting certificates with what the credit actually requires, rather than leaving that reconciliation to be discovered after the documents are already at the bank. For importers new to LC-financed trade, this kind of coordination between logistics and finance is often the difference between a payment that clears on schedule and one that sits in limbo over a paperwork technicality.
