Introduction
Banks need to make and receive payments across countries and currencies. However, a bank cannot maintain its own branch in every country or participate directly in every foreign payment system.
Correspondent banking solves this problem.
Under a correspondent banking arrangement, one bank provides banking services to another bank. RBI recognises services such as cash or funds management, international wire transfers, drawing arrangements, payable-through accounts and cheque clearing as part of correspondent banking.
Nostro, Vostro and Loro accounts arise from these inter-bank relationships. The most important point for CAIIB is that these terms depend mainly on whose perspective is being considered.
A learner who understands the words our, your and their can solve most conceptual questions on Nostro, Vostro and Loro accounts.
Learning Objectives
After studying this topic, you should be able to:
explain the purpose of correspondent banking;
identify correspondent and respondent banks;
distinguish Nostro, Vostro and Loro accounts;
understand how international payments are settled through correspondent accounts;
explain Nostro funding and reconciliation;
identify important operational and AML/CFT risks; and
apply current RBI requirements to correspondent banking relationships.
1. What Is Correspondent Banking?
Correspondent banking is an arrangement under which one bank provides banking services to another bank.
The bank providing the services is generally called the correspondent bank.
The bank receiving or using those services is called the respondent bank.
For example, assume an Indian bank does not have a branch or direct payment-system access in the United States. It may maintain an account with a bank in New York. The US bank can then help the Indian bank:
settle US dollar payments;
receive funds;
execute international wire transfers;
provide clearing facilities;
manage balances; and
support other permitted international banking transactions.
RBI's current KYC Direction specifically treats cross-border correspondent relationships as relationships requiring appropriate due diligence and controls.
2. Why Do Banks Need Correspondent Banks?
International payments often involve:
different currencies;
different banking systems;
different time zones;
foreign clearing systems; and
banks that do not have a direct relationship with each other.
A correspondent bank acts as an important link in this chain.
Suppose an Indian importer has to pay a supplier in the United States in USD.
The Indian bank may need access to the US dollar payment system. Instead of maintaining its own banking presence in the US, it can use its USD account with a correspondent bank.
The correspondent banking network therefore supports the movement and settlement of money between banks located in different countries.
3. Major Correspondent Banking Services
Correspondent banking is broader than merely maintaining a Nostro account.
Important services may include:
Service | Simple Meaning |
|---|---|
International fund transfers | Sending or receiving cross-border payments |
Funds management | Managing balances held for another bank |
Payment settlement | Settling obligations between banks |
Clearing services | Providing access to clearing arrangements |
Drawing arrangements | Facilitating specified drafts or remittances |
Payable-through facilities | Allowing eligible customers of a respondent bank access through correspondent arrangements |
Trade-related payments | Supporting settlement connected with imports, exports and trade transactions |
Treasury settlement | Settlement of eligible foreign exchange and money-market transactions |
RBI's KYC framework expressly identifies funds management, international wire transfers, drawing arrangements, payable-through accounts and cheque clearing among correspondent banking services.
4. Nostro Account
A Nostro account means:
“Our account with you.”
Suppose Bank A in India maintains a USD account with Bank B in New York.
From Bank A's perspective:
The account maintained by us with Bank B is our Nostro account.
Thus:
Bank A's USD account with Bank B = Nostro account for Bank A
The account represents Bank A's funds held with another bank.
For an Indian bank, foreign-currency accounts maintained with overseas correspondent banks are commonly referred to as Nostro accounts.
Main Uses of a Nostro Account
A Nostro account may be used for:
settling foreign currency payments;
receiving foreign currency funds;
settling inter-bank foreign exchange transactions;
trade-related settlements;
customer remittances;
treasury transactions; and
other permitted cross-border transactions.
5. Vostro Account
A Vostro account means:
“Your account with us.”
Continue the same example.
Bank A in India maintains an account with Bank B in New York.
From Bank B's perspective, Bank A's account is:
Bank A's account maintained with us = Vostro account
Therefore, the same correspondent account may be:
Nostro for Bank A, and
Vostro for Bank B.
This opposite perspective is one of the most important CAIIB concepts.
Does Vostro Always Mean a Rupee Account?
No.
Vostro describes the perspective of the bank maintaining another bank's account.
In Indian banking, a foreign bank may maintain a rupee account with an Indian AD bank. Such an account may be referred to as a Rupee Vostro Account.
However, students should not conclude that every Vostro account must always be denominated in INR.
The word Vostro tells you whose account it is from the maintaining bank's perspective. The denomination depends on the actual banking arrangement.
6. Loro Account
A Loro account means:
“Their account with them.”
Loro is used when one bank refers to an account relationship between two other banks.
Assume:
Bank A is an Indian bank.
Bank B is a US correspondent bank.
Bank C is another bank.
Bank A maintains a USD account with Bank B.
From Bank A's view, it is a Nostro.
From Bank B's view, it is a Vostro.
If Bank C refers to Bank A's account maintained with Bank B, it may describe it as a Loro:
“Their account with them.”
Loro is therefore mainly a third-bank perspective.
It should not be treated as an entirely separate class of account requiring a new underlying deposit relationship merely because the word “Loro” is used.
7. Nostro vs Vostro vs Loro
Basis | Nostro | Vostro | Loro |
|---|---|---|---|
Simple meaning | Our account with you | Your account with us | Their account with them |
Perspective | Account-owning bank | Account-maintaining bank | Third bank |
Relationship | Our funds held by another bank | Another bank's funds held by us | Account between two other banks |
Typical use | Foreign payment settlement | Servicing correspondent/respondent bank | Referring to another banking relationship |
Key word | Our | Your | Their |
The easiest way to identify the correct term is to first ask:
“From which bank's point of view is the question being asked?”
Do not start with the currency.
Start with the perspective.
8. How a Cross-Border Payment Uses a Nostro Account
Consider an Indian importer who has to pay a US exporter.
Assume:
Importer banks with Bank A in India.
Bank A maintains a USD Nostro with Bank B in New York.
The exporter receives payment through Bank C in the US.
A simplified payment flow is:
Importer → Bank A → Bank A's USD Nostro with Bank B → Bank C → Exporter
Bank A sends payment instructions.
Bank B debits Bank A's USD account and processes the payment through the appropriate payment network towards the beneficiary bank.
The beneficiary bank then credits the exporter according to the applicable payment instructions and procedures.
This shows why Nostro accounts are important for settlement. The payment instruction itself is not enough. Funds must ultimately move or be adjusted between the relevant bank accounts.
9. Payment Instruction and Settlement Are Different
A common conceptual mistake is to treat the transmission of a payment message as the actual movement of funds.
They are related but different.
A payment instruction tells the relevant banks:
who is paying;
who is receiving;
how much is payable;
in which currency; and
where the payment should be credited.
Settlement deals with the actual discharge of the financial obligation through the relevant accounts.
Thus, an international transaction may involve:
transmission of payment information; and
settlement through correspondent accounts.
This distinction becomes important when studying SWIFT, payment systems and settlement risk in greater detail.
10. Nostro Funding
A bank must maintain an appropriate balance in its Nostro account to meet expected payment obligations.
Too little balance may create a shortage when payments become due.
Too much balance may leave funds idle or reduce the efficient use of liquidity.
Therefore, treasury and international banking operations generally monitor:
expected inflows;
expected outflows;
value dates;
available balances;
pending transactions; and
settlement requirements.
Good Nostro management aims to keep sufficient funds available without unnecessarily keeping excessive balances abroad.
11. Nostro Reconciliation
Nostro reconciliation is an important operational control.
The bank maintains its own internal record of transactions affecting its Nostro account. The correspondent bank also provides statements showing transactions actually booked in the account.
The two records must be compared.
A difference may arise because of:
timing differences;
incorrect value dates;
duplicate entries;
missed entries;
wrong amounts;
charges;
returned payments;
transactions booked to the wrong account; or
transactions recorded by one bank but not yet recorded by the other.
Unreconciled entries should be investigated promptly.
A long-outstanding unexplained entry may indicate an operational error, financial loss, incorrect settlement or even a potentially suspicious transaction.
Why Reconciliation Matters
Effective Nostro reconciliation helps a bank:
identify errors;
detect unauthorised or unusual transactions;
verify settlement;
maintain correct account balances;
control operational risk; and
improve liquidity management.
The CAIIB learner should remember that maintaining a Nostro account and reconciling a Nostro account are different activities.
12. Value Date in Correspondent Banking
International transactions are highly sensitive to value date.
The value date is the date on which funds become effective for financial settlement purposes.
If a payment is funded late, the bank may:
fail to settle on time;
require short-term borrowing;
incur overdraft or interest costs;
face claims from counterparties; or
suffer operational and reputational consequences.
Therefore, Nostro management is closely connected with:
cut-off times;
settlement dates;
currency holidays;
time zones; and
funding arrangements.
13. Risks in Correspondent Banking
Correspondent banking enables efficient global payments but also creates risks.
Operational Risk
Errors may occur in:
payment instructions;
account numbers;
currencies;
value dates;
reconciliation; or
transaction processing.
Liquidity Risk
The bank may not have sufficient funds in the required currency at the required time.
Credit Risk
A bank may be exposed to the financial condition of its correspondent or other counterparties depending on the nature of the arrangement.
Settlement Risk
One side of a financial transaction may be settled while the expected corresponding settlement is delayed or fails.
AML/CFT Risk
Cross-border correspondent networks can involve many institutions and customers. This increases the importance of understanding the respondent bank, its customers, its controls and the jurisdictions in which it operates.
RBI's current KYC Direction requires banks to obtain sufficient information about respondent banks, assess their AML/CFT controls, understand their business and supervision, and consider whether they have faced money-laundering or terrorist-financing investigations or regulatory action.
14. RBI Requirements for Correspondent Banking Relationships
RBI's current KYC Direction lays down specific safeguards for cross-border correspondent banking relationships.
Banks are required to have an approved policy laying down parameters for such relationships. Before establishing a new correspondent banking relationship, prior approval from senior management is required, followed by the applicable post-facto approval of the Board or empowered committee.
Banks should gather sufficient information regarding matters such as:
nature of the respondent bank's business;
management;
major business activities;
purpose of opening the account;
AML/CFT controls;
quality of regulatory supervision;
third parties using the correspondent services; and
relevant regulatory framework in the respondent bank's home country.
The respective AML/CFT responsibilities of the institutions involved must also be clearly documented and understood.
15. Payable-Through Accounts
A payable-through account can create higher AML/CFT risk because customers of the respondent bank may have direct access to facilities of the correspondent bank.
RBI therefore requires the correspondent bank to be satisfied that the respondent bank:
has conducted customer due diligence on customers having direct access;
carries out ongoing due diligence; and
can provide relevant CDD information immediately when requested.
The exam point is not merely the definition of a payable-through account.
The important point is that direct customer access creates an additional due-diligence responsibility.
16. Correspondent Banking and Shell Banks
RBI prohibits banks from entering into or continuing a correspondent relationship with a shell bank.
Banks must also ensure that their respondent banks do not allow their accounts to be used by shell banks.
RBI also requires caution in correspondent relationships involving institutions located in jurisdictions with strategic deficiencies or insufficient progress in implementing FATF recommendations.
17. Special Rupee Vostro Account: Do Not Confuse the Terms
A Special Rupee Vostro Account (SRVA) is a specific regulated arrangement and should not be confused with the general concept of a Vostro account.
Under the current RBI framework, an authorised dealer bank in India can maintain SRVAs for overseas correspondent banks. RBI also permits an AD bank to maintain multiple SRVAs for eligible foreign banks, subject to the applicable framework.
Balances in an SRVA can be used for permissible transactions under the FEMA framework, and the Indian AD bank maintaining the SRVA is responsible for reporting transactions involving that account.
For CAIIB purposes, remember:
Vostro = general account perspective.
SRVA = a particular regulated Rupee Vostro arrangement.
Therefore, every Vostro account is not automatically an SRVA.
18. Practical Banking Application
Consider an Indian bank processing international transactions during a working day.
Its international treasury or correspondent banking team may need to:
estimate currency-wise payment obligations;
verify incoming receipts;
arrange Nostro funding;
issue settlement instructions;
monitor confirmation of payments;
reconcile correspondent statements;
investigate unmatched entries;
monitor limits and exposures; and
comply with AML/CFT and regulatory requirements.
Correspondent banking therefore connects several banking functions:
Forex + Treasury + Payments + Trade Finance + Operations + Compliance + Risk Management
This is why the concept appears simple but has wide practical importance.
19. CAIIB Exam Focus
Perspective Is the First Test
When a question gives two or three banks, first identify whose point of view is being considered.
Then classify the account.
If Bank A says:
“Our account maintained with Bank B” → Nostro
If Bank B says:
“Bank A's account maintained with us” → Vostro
If Bank C refers to:
“Bank A's account with Bank B” → Loro
Same Account, Different Name
The same underlying account can be a Nostro for one bank and a Vostro for the other bank.
This is one of the most frequently confused concepts.
Currency Alone Does Not Decide the Name
Do not decide that an account is Nostro merely because it is in foreign currency.
The relationship and perspective decide whether the term is Nostro, Vostro or Loro.
Correspondent and Respondent Are Different Roles
The correspondent bank provides services.
The respondent bank uses those services.
Payment Message Is Not Settlement
Payment information and final settlement are related but separate concepts.
Reconciliation Is an Important Control
Nostro reconciliation is not just an accounting exercise. It supports settlement accuracy, operational control and liquidity management.
Regulatory Controls Matter
Correspondent banking questions may combine the basic account concept with:
AML/CFT;
shell banks;
payable-through accounts;
respondent-bank due diligence; and
approval requirements.
20. Common Exam Traps
Trap 1: Nostro Means Any Foreign Account
Incorrect.
Nostro means our account maintained with another bank. The perspective is essential.
Trap 2: Vostro Is a Completely Different Account from Nostro
Not necessarily.
One correspondent account can be Nostro from one bank's perspective and Vostro from the other bank's perspective.
Trap 3: All Vostro Accounts Are Rupee Accounts
Incorrect.
Vostro describes the relationship from the account-maintaining bank's perspective. A Rupee Vostro is a particular type of Vostro arrangement.
Trap 4: Loro Is the Third Bank's Own Account
Incorrect.
Loro generally describes their account with them—an account relationship between two other banks from the observer bank's perspective.
Trap 5: SWIFT Message Itself Settles the Funds
Incorrect.
A payment message communicates instructions. Settlement requires the relevant adjustment or movement of funds through accounts/payment systems.
Trap 6: Correspondent Banking Means Only Nostro Maintenance
Incorrect.
Correspondent banking may include funds management, wire transfers, clearing, drawing arrangements and other banking services.
Trap 7: Shell Bank Relationship Is Allowed with Extra Monitoring
Incorrect.
Current RBI requirements state that a correspondent relationship shall not be entered into or continued with a shell bank.
Trap 8: Respondent Bank's KYC Is Irrelevant to Correspondent Bank
Incorrect.
RBI requires the correspondent bank to assess the respondent bank's AML/CFT framework and imposes specific requirements where payable-through accounts are involved.
21. Memory Technique
Use the Our–Your–Their Rule:
Nostro → Our account with you
Vostro → Your account with us
Loro → Their account with them
For a three-bank case, do not memorise the bank names.
First identify the observer.
Then ask:
Whose account is it, and with whom is it maintained?
This simple approach avoids most Nostro-Vostro-Loro classification errors.