Correspondent Bank

A correspondent bank is a financial institution that provides services to another bank, typically a foreign one, enabling it to conduct business and process transactions in a jurisdiction or currency where it has no physical presence. The arrangement allows the second institution, known as the respondent bank, to access payment systems, clearing services and foreign currency handling that it could not otherwise reach directly. The relationship is built around accounts held between the two institutions. The respondent bank maintains a nostro account ("our account with you") at the correspondent, while the correspondent records the same relationship as a vostro account ("your account with us"). These mirrored ledgers allow funds to be settled between the parties and, by extension, between their respective customers. When a payment crosses borders, it often passes through a chain of correspondent relationships, each institution debiting and crediting accounts along the route until the funds reach the beneficiary bank. Correspondent banking underpins much of the world's cross-border payment activity. It is the mechanism by which a smaller domestic bank can offer international transfers, or by which a bank in one country can settle transactions denominated in another country's currency. The SWIFT messaging network is commonly used to communicate payment instructions between correspondents, though SWIFT itself moves messages rather than money; settlement occurs across the nostro and vostro accounts. The services a correspondent provides can include payment execution and clearing, foreign exchange, trade finance, cheque collection and cash management. Some relationships extend to nested or downstream arrangements, where a respondent bank in turn provides correspondent-style access to other institutions, adding further layers to the chain. Correspondent banking carries significant regulatory and risk-management obligations. Because a correspondent may be processing transactions for parties it does not directly know, the arrangement is treated as higher risk for money laundering and sanctions exposure. Correspondents are expected to conduct due diligence on their respondents, understand the nature of their business, and in some cases assess the respondent's own controls over its customers. Heightened scrutiny applies to certain cross-border relationships, and institutions have in recent years reduced or exited some correspondent relationships in a trend known as de-risking, which can affect access to the financial system in particular regions. For practitioners, understanding correspondent banking is central to grasping how value moves internationally, why cross-border payments can involve intermediary charges and timing delays, and where compliance responsibilities sit along a payment chain.