Correspondent Banking

Correspondent banking is a bilateral arrangement in which one bank, the correspondent, holds deposits owned by another bank, the respondent, and provides payment and other banking services to it. The labels describe which bank holds the deposit and supplies services, rather than a required difference in size or country.

Accounts and Services

The respondent's interbank account is recorded on the correspondent's books. The respondent owns the deposit; the correspondent holds it and provides services to that bank. This arrangement does not by itself give the respondent's customer an account on the correspondent's books. Identifying the account holder therefore means distinguishing the bank-to-bank relationship from the respondent's relationship with its customer.

In a cross-border arrangement, the correspondent provides local account and payment services to a bank based abroad. This gives the respondent access to a foreign financial system through that relationship. Correspondent banking therefore describes both the account held for the other bank and the services provided through the arrangement.

How Correspondent Banking Works

Correspondent banking involves two distinct elements: payment messages and account settlement. Messages communicate instructions, while settlement involves debiting and crediting the relevant accounts. Both belong to the payment process, but they perform different functions. An explanation of the message route alone is therefore not an explanation of the account entries used to settle the payment.

For a hypothetical example, a respondent sends a SWIFT instruction asking its correspondent to debit the respondent's account for a payment. The SWIFT message communicates the instruction; it does not carry the deposited money. The debit and the other relevant account entries are the settlement mechanism, distinct from the messaging used to request them.

The payment can also involve a payment system, rather than only successive transfers across correspondent accounts. The account arrangement and the route used for a particular payment should therefore be considered separately.

Payment Routes and Scope

The number of intermediary correspondents depends on the account relationships available for the transaction. If those relationships do not provide a direct route between the sending and receiving banks, an intermediary may be needed. Several correspondents can be involved in one underlying payment, but that is not a defining requirement. Neither every international payment nor every route should be described as a multi-bank correspondent chain.

Routes also differ in how the receiving bank is reached. One route may use correspondent services alone; another may include a payment system shared by an intermediary and the receiving bank. The relevant question is which account relationships and system participation support that payment, not how many banks a generic diagram shows.

Cross-border payments are an important use of correspondent banking, not its exclusive scope. The definition does not require the two banks to be in different countries, and a correspondent need not be larger than its respondent. The account-and-service relationship, rather than geography or size, determines the roles.

A correspondent bank is not simply another name for a settlement bank. The former label identifies a bank-to-bank deposit-and-service relationship; the latter focuses on the settlement function. Likewise, defining correspondent banking is different from analysing how delays compound or where networks face architectural limits. Those analyses concern the operation and constraints of payment networks, rather than what makes a bank a correspondent or respondent.