Cross-border payments glossary

Correspondent banking is the traditional model where banks hold accounts with each other to move money across borders. A payment hops through a chain of intermediary banks, each adding time, fees, and FX spread. It is the legacy backbone of cross-border payments and the main reason they are slow and opaque.

A nostro account is an account a bank holds in a foreign currency at another bank abroad — 'our account with you'. Banks use nostro accounts to hold foreign-currency liquidity and settle cross-border payments. The same account is a vostro account from the other bank's perspective.

A vostro account is the same account as a nostro, seen from the other side — 'your account with us'. When a foreign bank holds a local-currency account at a domestic bank, the domestic bank calls it a vostro account. The two terms describe one account from two perspectives in correspondent banking.

SWIFT is a global messaging network that banks use to send standardized payment instructions across borders. Importantly, SWIFT moves messages, not money — actual settlement still happens through correspondent accounts. It connects 11,000+ institutions and underpins most traditional cross-border payments, now migrating to the ISO 20022 message standard.

SEPA (Single Euro Payments Area) is the European scheme that makes euro payments between participating countries work like domestic ones. SEPA Credit Transfer and SEPA Instant let businesses move euros across 36 countries with standardized rules; SEPA Instant settles in under 10 seconds, around the clock.

ISO 20022 is the global standard for structured, data-rich financial messaging that is replacing legacy formats like SWIFT MT. It carries far more structured data per payment — purpose, parties, remittance details — which improves straight-through processing, compliance screening, and reconciliation. Major networks are migrating to it on a coordinated timeline.

Real-time payment rails settle funds in seconds, around the clock, with immediate finality — for example UPI (India), PIX (Brazil), FedNow and RTP (US), SEPA Instant (EU), and FAST (Singapore). They are the fastest pay-out option on many corridors and the main alternative to slow correspondent settlement.

A payment corridor is a specific country-to-country or currency-to-currency route for moving money — for example USD→INR or GBP→EUR. Each corridor has its own rails, settlement times, costs, compliance requirements, and success rates, which is why payment performance is measured per corridor rather than in aggregate.

Settlement is the point at which a payment becomes final and the funds are irrevocably available to the recipient. Until settlement occurs, a payment is only a promise; settlement is when value actually changes hands. Cross-border settlement time ranges from seconds on instant rails to days over correspondent banking.

Settlement finality is the moment a transfer becomes legally irreversible and unconditional. After finality, the payment cannot be recalled or reversed by the sender or an intermediary. It is the property that lets recipients safely treat funds as their own, and it is defined by the rules of the settlement system used.

The FX spread is the difference between the mid-market exchange rate and the rate actually applied to a payment. It is where much of the real cost of a cross-border payment hides — often larger than the stated fee. Tight, transparent spreads are a core lever for reducing total cost on a corridor.

Sanctions screening checks the parties to a payment against government and international sanctions lists (OFAC, EU, UN, and others) before it is processed. A hit blocks or holds the payment for review. It is a mandatory, real-time control on every cross-border transaction and a frequent source of false positives and delay.

AML refers to the laws, controls, and monitoring that detect and prevent the use of payments to launder illicit funds. For cross-border payments it spans transaction monitoring, sanctions screening, suspicious-activity reporting, and recordkeeping. AML obligations are continuous, jurisdiction-specific, and a core part of any payment platform's compliance posture.

KYC is the set of checks that verify a customer's identity and assess their risk before and during a business relationship — identity documents, beneficial ownership, and ongoing risk review. In payments, KYC (and KYB for businesses) is the onboarding gate that underpins AML and sanctions controls on every subsequent transaction.

Payment orchestration is a software layer that routes each payment over the best available rail and provider for its corridor, with built-in compliance, FX, retries, and reconciliation. Instead of integrating and managing dozens of rails directly, a business connects once and the orchestration layer picks the optimal path per transaction.

Reconciliation is the process of matching a business's payment records against what actually settled at the bank or rail, so every transaction is accounted for. In cross-border flows — with multiple rails, currencies, fees, and FX steps — reconciliation is a major operational cost that structured data (ISO 20022) and orchestration platforms automate.