| Type | When Payment Occurs |
|---|---|
| Sight LC | Immediately upon presentation of conforming documents |
| Usance/Deferred Payment LC | At a fixed future date (e.g., 60, 90, 180 days after B/L date) |
| Acceptance LC | Beneficiary draws a bill of exchange; bank accepts it (creates a banker's acceptance) |
| Negotiation LC | Nominated bank purchases documents before maturity |