Correspondent banking: the chain behind a cross-border payment
If a payment to a supplier abroad arrives short and two days late, the reason is almost always the chain it traveled through. Correspondent banking is that chain: a bank in one country holds an account at a bank in another, and the second bank moves the money in its own market. No bank is connected to every country, so payments hop from one relationship to the next.
The structure explains the cost and the delay at once. Each hop is a bank that charges a fee, screens the payment and settles in its own cycle, and the payer sees only the amount that survived.
Nostro and vostro accounts
A correspondent relationship is a pair of accounts seen from two sides. The account a bank holds in a foreign currency at a bank abroad is its nostro account, from the Latin for "ours". The same account on the books of the bank that maintains it is a vostro account, "yours". A German bank holding dollars at a New York bank calls it nostro; the New York bank calls the same balance vostro.
The respondent bank is the one holding the account and buying the access; the correspondent provides it. That asymmetry decides everything that follows, because the correspondent sets the terms, runs the due diligence and can end the relationship.
How a payment hops and where the fee accrues
A payment from a German company to a supplier in a smaller market typically passes two to four banks, and settlement takes one to five business days. Each stage has its own charge. A glossary of correspondent banking published by Spark puts the originating bank's wire fee at 25 to 50 dollars, an intermediary at 15 to 75 dollars per hop, a receiving bank's lifting fee at 10 to 25 dollars and the currency conversion margin at 0.5 to 3 percent, with a typical transfer costing between 25 and over 200 dollars in total.
Who pays which part is set by a code in the payment message. OUR means the sender pays all charges and the beneficiary receives the full amount. BEN means the beneficiary carries them and gets whatever is left. SHA, the default in most corridors, splits them: the sender pays its own bank and the beneficiary absorbs the deductions along the chain. A supplier invoice dispute over a short payment is usually a SHA payment nobody discussed.
De-risking: why the number of relationships keeps falling
Banks have been closing correspondent relationships for years, and the direction has not changed. The Spark glossary records a decline of roughly 20 percent in active relationships between 2012 and 2019, and other counts put the fall at around 25 percent since 2009, while global trade grew over the same period.
The reason is a calculation, not a policy. A correspondent earns a thin fee on a respondent's payment traffic and carries the regulatory consequence if that traffic turns out to include sanctioned or laundered money. Where the fee does not cover the monitoring cost plus the tail risk of a penalty, the relationship is terminated. Small economies and remittance corridors lose access first, and that is the financial exclusion effect the term de-risking describes.
The due diligence a correspondent owes
Correspondent banking carries an elevated duty under European anti-money laundering law because the correspondent does not know the respondent's customers. Stricter due diligence measures apply: the correspondent gathers information on the respondent's business, ownership and reputation, assesses its anti-money laundering controls, documents the responsibilities of each side, and obtains senior management approval before opening the account.
Two practices sit on top. Nested relationships, where a respondent gives its own correspondent access to further banks, have to be identified because they hide a layer of customers. Payable-through accounts, where a respondent's customers transact directly on its account, are prohibited in some cases and need customer-level identification in others. Finance Loop covers the duties in anti-money laundering in Germany and the screening in sanctions compliance.
What the Wolfsberg questionnaire asks
Every correspondent asks a respondent the same kinds of questions, and the industry standardized them instead of sending 30 different forms. The Wolfsberg Group, an association of international banks, publishes a correspondent banking due diligence questionnaire covering ownership and licensing, the anti-money laundering program and who owns it, sanctions screening and its technology, the treatment of high-risk customers, transaction monitoring, and training.
For a respondent the questionnaire is the application for market access. A completed questionnaire with gaps in screening or monitoring is the usual reason a relationship is refused, and keeping it current is cheaper than finding a new correspondent.
What a payment institution does without a correspondent
A licensed payment or e-money institution often cannot get a correspondent at all, because it is not a credit institution and the same calculation goes against it twice. Three routes remain. It can hold accounts with a sponsoring bank that gives indirect access to clearing, which concentrates the dependency on one provider. It can join a network of payment institutions that settle with each other locally in each market, so no cross-border hop is needed. Or it can settle in a tokenized currency, which removes the chain and adds the issuer.
Each route is a different risk, and none is free. Finance Loop covers the license question in payments regulation in Germany and the third route in stablecoin settlement.
What is the difference between a correspondent and a respondent bank?
The correspondent provides the account and the access to its home market; the respondent holds the account and sends the payments. The correspondent carries the compliance duty for the relationship and sets the terms, which is why the respondent writes the Wolfsberg questionnaire and not the other way around.
Is SWIFT a correspondent bank?
No. Swift is a messaging network and a cooperative: it carries the instruction that tells a bank to pay, and it holds no accounts and moves no money. The money moves across the nostro and vostro accounts of the banks in the chain. Finance Loop covers the tracking layer in SWIFT gpi and the message standard in ISO 20022.
Correspondent banking and Finance Loop
Finance Loop is the meeting place for cross-border payments in Germany, an export economy whose suppliers and customers sit in markets no single bank reaches directly. Finance Loop brings together the correspondent banking and compliance teams who keep these relationships, and the payment institutions building around them.
Finance Loop is a professional network and has the goal of driving the adoption of emerging technologies in finance, such as AI, tokenization, stablecoins, and DeFi. Finance Loop helps its members build skills and personal networks in these fields: Investment & Digital Assets, Payments & Digital Money, Digital Infrastructure & Sovereignty, and Risk & Compliance.