What Is a Bank Routing Number? Meaning, Uses and How to Find It

A US client asks for a routing number, but your Indian bank details contain only an IFSC code and a SWIFT code. Which one should you enter?

Usually, neither. A bank routing number belongs to the US banking system and serves a different purpose from both Indian identifiers. If the payer is sending money directly to India, they will generally need your account and international wire details. If they are paying a US collection account, they may need that account’s routing number.

Understanding this distinction helps prevent rejected transfers, delayed invoices and incorrect banking instructions. Here is what a routing number means, where to find one and how Indian businesses can receive payments from US customers.

What Is a Bank Routing Number?

A bank routing number is a nine-digit code used to identify a financial institution in the United States. It is also called an ABA routing number or Routing Transit Number (RTN).

The American Bankers Association devised the routing-number system in 1910, and the US banking industry adopted it in 1911. It initially helped banks process paper cheques; routing numbers now also support electronic payment systems such as ACH and Fedwire.

A routing number identifies the institution responsible for processing the payment. It does not identify the customer’s individual bank account. That requires an account number.

The nine digits follow a validation structure:

• Digits 1–4: Federal Reserve routing symbol
• Digits 5–8: identifier assigned to the financial institution
• Digit 9: check digit used to detect common data-entry errors

Think of the routing number as the destination institution and the account number as the intended account within it. A routing number is generally discoverable, whereas an account number is sensitive financial information.

What Is a Bank Routing Number Used For?

Routing numbers help US payment systems direct instructions to the correct financial institution. Common uses include:

• ACH transfers: bank-to-bank payments processed through the Automated Clearing House network, including vendor payments and account-to-account transfers
• Direct deposits: salaries, platform payouts, government payments and other credits sent electronically
• Automatic debits: recurring bills or authorised bank-account payments
• Paper cheques: routing information in the MICR line identifies the paying bank
• Domestic wire transfers: Fedwire and other US wire instructions use routing information for participating institutions
• US client payments: a payer may use the routing and account numbers attached to a USD collection account

ACH and wire transfers are different payment rails. Some banks use one routing number for both, while others publish separate numbers for ACH, paper cheques or wires. Large banks may also use different routing numbers by state or account-opening region. A number can therefore be valid for the bank but wrong for the intended transaction.

Before sharing banking instructions, confirm:

1. Whether the payer is sending an ACH transfer or a wire
2. Which routing number applies to that rail
3. Whether the account can receive that payment type
4. The account holder name and account number exactly as issued

For a broader explanation of the international rail, read how a SWIFT money transfer works, including the roles of correspondent banks, fees and settlement timelines.

Routing number vs account number

Feature	Routing number	Account number
Identifies	A US financial institution or processing endpoint	A particular customer account
Typical length	9 digits	Varies by institution
Visibility	Generally public or discoverable	Sensitive and account-specific
Common use	Routes ACH, cheque or wire instructions	Directs funds to the recipient account
Can vary	By bank, region and payment rail	By customer account

Both may be required for a US domestic payment, but they are not interchangeable.

How to Find a Bank Routing Number

Use a source connected to the account and the intended payment method. Do not rely on an unverified number copied from a general search result.

1. Check a paper cheque

On a standard US cheque, the routing number is normally the first nine-digit sequence at the bottom-left, followed by the account number and cheque number. The layout can differ on some cheques, so confirm the details if the sequence is unclear.

2. Open the bank’s app or online banking portal

Look under account details, direct-deposit information or wire instructions. A bank may display separate ACH and wire routing numbers, so select the relevant payment type.

3. Review official bank instructions

Many US banks publish routing-number directories or wire-transfer instructions on their websites. Some ask for the state in which the account was opened.

4. Use an official directory

The Federal Reserve’s E-Payments Routing Directory can help confirm whether an institution participates in FedACH or Fedwire. Directory inclusion confirms routing information for a rail; it does not prove that a particular customer account can receive the transfer.

5. Contact the bank or account provider

For a high-value or time-sensitive payment, confirm the instructions directly through a trusted contact channel. This is particularly important if payment details arrived by email, because invoice-redirection fraud often relies on substituted bank instructions.

Is the Routing Number the Same for ACH and Wire Transfers?

Not always. Both are nine-digit identifiers, but a financial institution may assign different routing numbers to different networks.

Payment method	Typical purpose	Speed	Routing detail to verify
ACH	Routine bank transfers, direct deposits and debits	Same day or several business days, depending on service	ACH routing number
Domestic wire	High-value or time-sensitive US transfers	Often same business day when submitted before cut-off	Wire or Fedwire routing number
International wire	Cross-border bank transfer	Commonly one to several business days	SWIFT/BIC, account details and any intermediary instructions

An ACH routing number should not be assumed to work for Fedwire. Ask the receiving institution which instructions apply before the payment is initiated.

Also read: If you compare payment methods for overseas invoices, this guide to international payment terms for Indian exporters explains how the payment rail and commercial terms affect cost, timing and risk.

Do Indian Banks Have Routing Numbers?

Indian bank accounts do not ordinarily have ABA routing numbers. The ABA system is specific to US financial institutions. India uses different identifiers for domestic and international transfers.

IFSC code

The Indian Financial System Code is an 11-character alphanumeric code that identifies a bank branch participating in Indian electronic payment systems. It is used for domestic transfers such as NEFT, RTGS and IMPS.

SWIFT or BIC code

A SWIFT/BIC is usually 8 or 11 characters and identifies a financial institution in cross-border bank messaging. An international transfer may also require the beneficiary’s account number, name, address, purpose of payment and intermediary-bank information.

Identifier	Where it is used	Format	Primary role
ABA routing number	United States	9 digits	Routes eligible ACH, cheque and domestic wire instructions
IFSC	India	11 characters	Identifies a branch for domestic electronic transfers
SWIFT/BIC	International	8 or 11 characters	Identifies a financial institution in cross-border messaging

These identifiers solve related routing problems within different systems, but one cannot be substituted for another.

Also read: A guide to receiving international business payments in India can help you compare bank wires and collection platforms across coverage, compliance and cost.

Why Routing Numbers Matter to Indian Businesses

India’s services exports reached USD 421.3 billion in FY2025–26, according to a Government of India release. As more Indian SaaS companies, agencies, consultants and freelancers invoice customers overseas, more businesses encounter US payment fields designed around routing and account numbers.

The right details depend on how the client will pay:

• Direct international wire to India: provide the beneficiary account details, SWIFT/BIC and other instructions requested by the receiving bank. An Indian IFSC is not a substitute for a US routing number.
• ACH payment to a USD collection account: provide the US routing and account details issued for that collection account.
• International card payment: use a cross-border checkout rather than bank-transfer details. An international payment gateway handles card acceptance and currency processing through a different workflow.

The choice affects more than convenience. It can change payer fees, correspondent-bank deductions, settlement visibility, foreign-exchange treatment and the documentation available for reconciliation.

For businesses built around recurring global revenue, this SaaS global-payments guide explains why collection method, settlement and remittance records should be designed together. Independent professionals can use the related guide to payments from international clients for freelancers to evaluate practical collection options.

How to Receive US Client Payments in India

Indian businesses generally have three practical options.

1. Receive an international wire into an Indian bank account

Share the wire instructions provided by your bank, which can include your account number, SWIFT/BIC, beneficiary information and intermediary-bank details. This works for many business payments, but the payer or recipient may face transfer charges, correspondent-bank deductions or exchange-rate costs.

2. Use a local USD collection account

A collection account can provide payment details compatible with a US local rail such as ACH. The client pays using familiar domestic instructions, while the service manages collection and settlement to India subject to onboarding, transaction and compliance requirements.

The Cashfree documentation explains how collection accounts are matched to a currency and payment mode. For example, a USD account enabled for ACH carries the relevant collection details for that rail.

3. Accept international cards through an online checkout

For ecommerce, digital services or SaaS, card acceptance may be more suitable than asking every customer to initiate a bank transfer. Cashfree’s International Payment Gateway supports international card acceptance and settlement in INR, while the broader cross-border payment solutions covers inbound collections and outbound payment use cases.

Businesses that also sell domestically can compare these cross-border requirements with the payment methods and integrations available through an Indian online payment gateway.

How Cashfree Global Collections Works

Cashfree Global Collections gives eligible Indian businesses collection details that they can share with overseas customers. The available setup includes local collection accounts in USD, GBP, EUR and CAD, as well as a Global SWIFT Account for supported currencies and countries.

For a US payment, the workflow can look like this:

1. The business receives its USD collection-account details.
2. It shares the relevant ACH or wire instructions with the US client.
3. The client pays through the supported rail.
4. The transaction appears in the dashboard for tracking and reconciliation.
5. Funds are converted and settled to the linked Indian bank account under the applicable process.

Cashfree states that Global Collections supports payments through local rails such as ACH, SEPA, EFT and Faster Payments, with no forex markup and e-FIRA generation within 24 hours for eligible transactions. Product availability, pricing, limits and settlement timelines should be confirmed for the business’s onboarding profile and payment corridor.

Also read: For a closer look at using local collection accounts instead of relying only on SWIFT, see Global Collections for Indian exporters.

What Is e-FIRA, and Why Does It Matter?

An e-FIRA is an electronic foreign inward remittance advice or acknowledgement issued through the relevant banking process. It records details of a foreign inward payment and can support accounting, audit, GST and export-compliance workflows.

It should not be described as a universal entitlement to every tax benefit or export scheme. The document required depends on the transaction type, bank reporting, export category and regulatory purpose. Businesses should confirm the applicable evidence with their authorised dealer bank, chartered accountant or compliance adviser.

This guide to FIRC and electronic remittance records explains how FIRC, FIRA/FIRS, purpose codes and export reporting relate to one another.

Common Routing Number Mistakes to Avoid

• Entering an IFSC in a routing-number field: IFSC and ABA routing numbers belong to different national payment systems.
• Using an ACH number for a wire without checking: the receiving bank may publish separate routing instructions.
• Assuming every nine-digit number can receive every payment: participation and account eligibility still matter.
• Copying instructions from an old invoice: bank and collection-account details can change.
• Sharing account details over an unverified channel: independently confirm unexpected changes to payment instructions.
• Ignoring beneficiary-name requirements: mismatched account names or incomplete payment references can delay review and reconciliation.
• Leaving out the payment purpose: cross-border receipts may require a purpose code and supporting invoice information.

The simplest rule is to match the country, payment rail and account before sharing any banking code.

Frequently Asked Questions

What is a bank routing number?

A bank routing number is a nine-digit code that identifies a US financial institution for payment processing. It may be used for ACH transfers, direct deposits, paper cheques and domestic wire transfers.

Where can I find a routing number?

Check the bottom-left of a US cheque, the account-details section of online banking or the bank’s official payment instructions. Confirm whether the number is intended for ACH or wire transfers before using it.

Is a routing number the same as an IFSC code?

No. A routing number is a nine-digit US identifier, while an IFSC is an 11-character Indian code used for domestic payment systems such as NEFT, RTGS and IMPS.

Is a routing number the same as a SWIFT code?

No. A routing number identifies a US institution or processing endpoint within supported US rails. A SWIFT/BIC identifies a financial institution in international bank messaging.

Do Indian banks have ABA routing numbers?

No. A standard Indian bank account does not have an ABA routing number. An Indian business may, however, receive US-compatible routing details through an eligible USD collection account.

Do I need a routing number to receive payment from a US client?

Only if the client is paying into a US account or collection account through a rail that uses one. For a direct international wire to India, provide the beneficiary and SWIFT instructions issued by your Indian bank.

Can the same routing number be used for ACH and wire transfers?

Sometimes, but not always. Some banks use separate routing numbers for ACH and Fedwire. Verify the correct rail-specific instructions with the receiving bank or account provider.

Is it safe to share a routing number?

A routing number is generally public, but the combination of a routing number, account number and account-holder data is sensitive. Share complete banking instructions only through trusted channels and verify unexpected changes independently.

What is an e-FIRA?

An e-FIRA is an electronic advice or acknowledgement of a foreign inward remittance. It can support accounting and compliance records, but the exact document required depends on the transaction and regulatory purpose.