Correspondent Bank: Role, Functions & How It Works in Global Payments

International payments look simple on the surface. You send money, the recipient gets it. But between those two points, your funds pass through a chain of banks you've never heard of, in countries you may not have dealt with, each doing a job, and of course charging for it. Understanding that chain starts with understanding correspondent banks.

Here, we’ll cover everything you need to know about what a correspondent bank is, how correspondent banking works step-by-step, the role of SWIFT, nostro and Vostro accounts, and typical fees. You'll also discover the risks, AML and compliance obligations, RBI/FEMA framework for Indian businesses, cross-border challenges, and modern alternatives to the correspondent banking chain.

Key Takeaways

• Understanding correspondent banks helps Indian exporters and businesses trace where their cross-border money actually goes — identifying fee deductions, predicting settlement delays, and choosing alternatives that preserve more of what they earn.
• A correspondent bank is a third-party institution that acts on behalf of a foreign bank, processing payments, handling FX, and settling transactions between banks that don't have direct relationships.
• Each correspondent in a payment chain typically deducts $15–$50 per transaction, plus FX markup; multiple correspondents can compound costs significantly.
• Nostro ("ours") and Vostro ("yours") accounts are the operational foundation — the same account seen from two sides.
• For Indian businesses: Every cross-border payment must route through an RBI-authorized AD Category-I bank. Alternatives like regulated fintech platforms (e.g., Xflow) bypass multi-hop correspondent chains while maintaining FEMA compliance.

A correspondent bank acts as an intermediary between domestic and international banks. Mainly acting as an agent of a foreign bank to conduct business transactions on its behalf.

For instance, if a bank in the UK has a correspondent banking relationship with a bank in Japan, the UK bank can use the services of the Japanese bank to process transactions in yen, such as payments to Japanese beneficiaries or trades denominated in yen.

In transactions that require their use, correspondent banks add value in two key ways: they remove the need for the domestic bank to establish a physical presence abroad, and they save the work of setting up direct arrangements with financial institutions around the world.

From the moment you initiate an international transfer to when it lands in the recipient's account, given below is a step-by-step process:

• Step 1: You initiate the transfer - Your bank receives your request to send money abroad and checks whether it has a direct relationship with the recipient's bank.
• Step 2: A correspondent bank is identified  - If no direct relationship exists, your bank searches the SWIFT network for a correspondent bank that has a formal relationship with both institutions.
• Step 3: Funds move into a nostro account - Your bank transfers the required amount into its correspondent banking account, which is the nostro account, at the correspondent bank, temporarily placing the funds under the correspondent's control. 
• Step 4: The correspondent deducts its fee - The correspondent bank deducts a service fee, then processes the transaction. That involves routing the payment with the help of appropriate clearing channels in the country where the money is expected.
• Step 5: Funds arrive at the recipient's bank - The correspondent transfers the remaining funds to the Vostro account of the recipient's bank, which then deposits the money into the recipient's individual account.

Correspondent banks do more than just move money from point A to point B. In their intermediary role, they help financial institutions send payments in a foreign currency without the domestic bank needing to establish relationships with foreign banks or set up branches abroad.

Apart from fund transfers, they also accept deposits, manage investments, handle currency exchange, and provide other financial services on behalf of their bank clients. They are, in effect, the infrastructure that keeps global payments running.

Setting up a branch in every country where customers need to send or receive money is neither practical nor cost-effective. Correspondent banking solves that problem. But that's not the only reason banks rely on it.

• Global reach without physical presence: Banks can serve customers in countries where they have no branches, including developing markets, by utilizing a correspondent's existing network.
• Access to local currency and payment systems: Correspondent relationships allow cross-border transactions to be processed in the local currency and through local payment systems. That’s quite important, given that most international trade is conducted in US dollars, regardless of the countries involved. 
• Reduced cost and risk: By using the infrastructure of correspondent banks, banks lower down the cost and compliance burden of processing international transactions on their own. 
• Regulatory compliance: Correspondent banks work under strict regulatory standards. That is quite helpful for small banks that may lack the resources to manage on their own, who partner with a reputable one.

We’ve already covered how a correspondent bank moves money between two points. In addition, it performs various other functions, such as:

• Currency exchange: Convert funds from one currency to another so payments reach the recipient in the right denomination.
• Clearing and settlement: They make sure that the actual transfer of funds between banks is completed accurately and on time.
• Trade finance: Also helps with the settlement of international trade by allowing payments tied to the movement of goods and services across borders.
• Treasury services: Manage liquidity, foreign currency holdings, and short-term funds on behalf of partner banks.
• Handling global investments: Help with cross-border investment transactions that require coordination between financial systems in different countries.
• Maintaining Nostro and Vostro accounts: Hold and manage the dedicated accounts that make the entire correspondent banking system work.

These two terms get used interchangeably a lot. And on the surface, they do look similar. Both are third parties that step in to help move money between banks that don't deal with each other directly. But there's a real difference between them, and it comes down to scope.

A correspondent bank handles a wider range of services across multiple currencies, foreign exchange, clearing, and settlement. It has an ongoing relationship with the banks it works with, and those relationships are built on formal agreements, dedicated accounts, and long-term trust.

An intermediary bank, on the other hand, typically handles single-currency transactions. Its services are employed when a smaller or regional bank can't complete an international payment on its own. It acts on behalf of both the sending and receiving banks, but there's no ongoing relationship built around it. It routes the payment and steps out.

One more practical difference is that when intermediary banks are involved, there are three or more participants in the payment chain. That means more stops, more potential for delays, and less visibility on where the money actually is at any given point.

Every time money moves across borders through the correspondent banking system, it needs a common language. A way for banks in different countries, running different systems, to communicate with each other reliably. That's exactly what SWIFT provides.

SWIFT, or Society for Worldwide Interbank Financial Telecommunications, is the global messaging system used by the correspondent banking network to manage cross-border transactions. It doesn’t hold or transfer funds itself. It transmits the verified instructions required for banks to move money between accounts. So, it’s like a messaging layer. The actual movement of money still happens through the correspondent banking relationships underneath.

SWIFT connects over 11,000 financial institutions across 200 countries and territories. That means a pretty solid base for secure and standardized communication about financial transactions.

When a bank needs to send a payment internationally and doesn't have a direct relationship with the receiving bank, it uses the SWIFT network to identify a correspondent bank that does.

Each bank on the network has a unique identifier, a SWIFT code basically, that works like a postal address, making sure payment instructions land at exactly the right institution.

All in all, SWIFT is the infrastructure that makes the correspondent banking network function at scale. Without it, the coordination required to move money reliably across dozens of currencies and hundreds of banking systems would be a far messier, far slower process.

The correspondent banking system runs on a very practical foundation. And that is banks holding money on each other's behalf, in each other's countries. Nostro and Vostro accounts are how that actually works.

The terms come from Latin. Nostro means "ours", and Vostro means "yours", and the difference between them is simply a matter of perspective.

The Nostro account

A Nostro account is an account that a bank holds in a foreign currency with another bank, usually abroad. It represents "our money, held by you."

Say an Indian bank needs to regularly send payments in US dollars. Rather than scrambling to convert and transfer funds each time, it maintains a USD Nostro account with a bank in the United States. This allows it to settle payments in dollars without opening branches in the US.

The Vostro account

A Vostro account is an account that a foreign bank holds with a domestic bank, in local currency. It represents "your money, held by us."

Flipping the same example: if the US bank wants to hold INR for transactions in India, it maintains a Vostro account with the Indian bank. This lets the US bank carry out rupee-based transactions without setting up a local branch. 

To put it simply, it is the same account, just seen from two different sides."Nostro" for one bank, "Vostro" for the other. The account doesn't change. The label does, depending on who's looking at it.

Every correspondent bank that handles your transfer along the SWIFT network charges for its role. And those charges can come from multiple points in the chain.

The correspondent fee can be deducted at any stage of the transfer process. It could be an outgoing fee charged by your own bank, an intermediary fee from a correspondent bank mid-route, or an incoming fee charged by the recipient's bank at the very end. In some cases, all three apply to the same transfer.

The amount varies, depending on the banks involved, but a reasonable estimate is anywhere between $15 and $50 per correspondent bank. And the fee can go higher depending on the corridor and the institutions in the chain.

The banks in the SWIFT network change from transfer to transfer. They may not be the same banks every time. Which is why fees are hard to predict in advance and can catch both senders and recipients off guard.

Correspondent banking makes global payments possible, but the same system that connects banks across the world also creates some serious loopholes. The problem is that the further a payment travels, the more room there is for things to go wrong. Some of the risks cover:

Financial crime and money laundering

The very financial channels that allow smooth trade transactions can be misused for financial crime. Because correspondent banks process payments on behalf of other banks, not their own customers, they rely heavily on the information provided by the bank they're representing. This makes it difficult to perform due diligence on each transaction.

One of the more complex threats is Trade-Based Money Laundering. TBML schemes involve over-invoicing, under-invoicing, or falsely describing goods to make dirty money appear legitimate, and since correspondent banks handle these transactions, they can unintentionally become part of the money laundering chain.

De-risking

In order to address the issue of financial crime, many large banks have started to cut off correspondent relationships in regions they think might be high-risk. This is called de-risking.

The purpose of de-risking is obviously to reduce exposure to illicit activity. But it can also reduce access to financial services for legitimate businesses in affected regions. And in some cases, unfortunately, it can even push transactions into less regulated channels, making the problem worse.

Regulatory and compliance risk

Correspondent banks face quite a lot of risks due to their involvement in suspicious transactions. These risks can result in hefty fines, hit the bank’s reputation, and even affect its relationship with banks. The Danske Bank scandal, where over $200 billion in suspicious transactions flowed through correspondent banking channels, is one such example of what happens when oversight breaks down.

Slower settlement and limited visibility

Once a payment enters the correspondent banking network, tracking its progress is not at all easy. As each transaction involves a lot of intermediaries, you can lose access to real-time updates and clarity on any delays. For time-sensitive payments, that lack of visibility is a real operational risk.

Fee unpredictability

Fees differ a lot, depending on the payment route, currency, and region. With multiple banks deducting charges along the chain, the final amount that reaches the recipient can be hard to predict, creating friction for businesses that need cost certainty.

Because in correspondent banking services, transactions cross borders, involve multiple institutions, and move quickly, they can be exploited for money laundering and terrorist financing if the right controls aren't in place. That's why you can afford to ignore the compliance obligations in this space. 

Know Your Customer and customer due diligence

Correspondent banks need to conduct thorough due diligence on their respondent banks, the ones they are dealing with. They must understand their ownership structure, business activities, customer base, and compliance with AML and counter-terrorism financing regulations. Plus, this isn't a one-time check. Ongoing monitoring of the respondent bank's transactions is required to detect any suspicious or unusual activity.

More due diligence for high-risk relationships

Regulators require enhanced due diligence for higher-risk correspondent relationships. That’s because they may involve more detailed investigations, verification of the source of funds, and screening against sanctions lists and lists of politically exposed persons.

Regulatory frameworks that govern this

The FCA and FinCEN have both issued guidance emphasizing the need to verify the respondent bank's AML policies and procedures, understand its ownership and control structure, monitor transactions for suspicious activity, and ensure no undisclosed third-party usage of accounts.

Failure to comply with these expectations has led to multi-billion-dollar fines for major global banks.

RBI does not have specific guidelines on correspondent banking as a framework, the way FATF or FinCEN do. But it does regulate the broader cross-border payment system that correspondent banking operates within.

All cross-border payments in India are governed by the Foreign Exchange Management Act (FEMA), RBI guidelines, and Authorized Dealer (AD) Category-I bank requirements.

You need to route payments through authorized channels only, maintain proper documentation, and use correct purpose codes. Every international transfer, be it inward or outward, must pass through an AD Category-I bank. These are the institutions authorized by the RBI to handle foreign exchange transactions on behalf of their customers.

In the case of inward remittances, the bank issues a Foreign Inward Remittance Certificate, FIRC or e-FIRA. This document serves as proof of receipt and is required for tax filings, GST refunds, and export documentation. 

As per RBI guidelines, the full value of exports must be realised and repatriated to India within nine months from the date of export. Delayed realisation may require additional declarations or approval from the bank.

Lastly, there is no upper limit for inward remittances, but large amounts may trigger compliance checks under FEMA or income tax laws. Banks are required to report all inward remittances to the RBI, ensuring full visibility over foreign currency inflows.

Moving money internationally has never been simple. It comes with a lot of friction points that are hard to ignore. These include:

• High fees: Payments travel through multiple correspondent banks, with each one charging a fee. These add up quickly.
• Hidden costs: The lack of transparency from some payment providers makes it quite difficult to compare costs. 
• Slow settlements: Cross-border payments can take anywhere between 3-5 business days to settle. That’s because of time zone differences, involvement of different intermediaries, and regulatory checks.
• Regulatory complexity: Banks need to comply with Anti-Money Laundering laws, Know Your Customer requirements, and sanctions screening. All of them take time and add to the cost as well.
• Cash flow strain: Slow settlements disturb your cash flow, strain vendor relationships, and create uncertainty in how you plan your finances. 
• Disproportionate impact on smaller businesses: These costs hit small and medium-sized businesses hardest, creating unpredictable expense management.

Correspondent banking works. But for businesses dealing with high volumes of international payments, it comes with real costs, such as slow settlements, unpredictable fees, and limited visibility. That's pushed a lot of businesses to look elsewhere.

Fintech payment providers connect directly to local banking rails through APIs, automate compliance checks, and offer real-time tracking that the traditional correspondent banking network cannot provide. The result is faster, cheaper, and more transparent cross-border payments. Without relying on a chain of intermediary banks.

Here's what the alternatives look like in practice:

• Fintech payment platforms layer services on top of banking networks to solve traditional cross-border challenges, including pre-funding to simulate instant payments, automatic rerouting to find the fastest settlement path, real-time payment tracking, and built-in FX and compliance management.
• Multi-currency accounts let businesses hold and receive funds in multiple currencies, using local payment rails in each market. This means reduced transfer fees, faster payments, and the ability to convert currencies at lower rates than traditional bank accounts.
• Regional payment networks like SEPA in Europe or Buna in the Middle East allow transfers to move through central infrastructure without passing through the correspondent banking chain, making them faster and more cost-effective for intra-regional payments. 

The common thread across all of these is fewer intermediaries, more transparency, and lower costs. Things Xflow is purpose-built to provide. 

Xflow is a payment infrastructure provider for Indian businesses of all sizes. Rather than routing payments through a chain of correspondent banks, each taking a cut, Xflow uses its own payment network to bring funds directly to your INR account. 

There are no hidden FX markups and no surprise deductions mid-route. You see your exact rate upfront, receive your money faster, and get a free FIRA automatically once funds are credited. Plus, it comes with transparent pricing, next-day business settlements, limitless transactions, and fast and flexible withdrawals.

Correspondent banking connects the world's financial system. But that connection comes at a cost. Knowing where those costs come from, who controls them, and where alternatives exist puts you in a much stronger position as a business operating across borders. The more you understand the infrastructure behind your payments, the better you can manage what goes in and what actually comes out.

For Indian exporters and businesses tired of losing money mid-route, Xflow offers a direct alternative. Transparent FX rates, no intermediary deductions, next-day INR settlement, and automatic FIRA generation, everything the correspondent banking system isn't.

To learn more, visit Xflow’s website now!