Anshul Sharma

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An ACH routing number is a nine-digit numeric code assigned to a US financial institution for processing electronic transactions. ACH stands for Automated Clearing House; it is a US-based network that moves money electronically between banks and financial institutions for direct deposits, bill payments, and fund transfers.

Think of it as the PIN code of a bank. Just as a PIN code tells the postal system which area to deliver a letter to, an ACH routing number tells the ACH network exactly which bank to send money to. Once the bank is identified, the account number identifies the individual account within that bank.

The American Bankers Association (ABA) assigns and maintains these numbers. That’s why you might hear your clients say ACH routing numbers as <a href="https://www.skydo.com/blog/aba-number-explain">ABA routing numbers</a>. While they are not wrong, ABA routing numbers are mostly used for paper cheques, and ACH routing numbers are used for electronic transfers. Because you will receive international payments online, you will need an ACH routing number and the bank account number.

What Is the Importance of an ACH Routing Number?

The importance of an ACH routing number is that it ensures electronic payments reach the right financial institution without manual intervention, enabling accurate fund routing, direct deposits, recurring payments, reduced errors and fraud, and fast, low-cost transfers. That's the top-level view of why it matters; here are the practical scenarios where it makes a difference:

For businesses, like your clients, the ACH routing number provides direct operational advantages. Payroll runs on time, vendor payments don't get stuck in manual queues, and every transaction is traceable through the ACH network's records.

ACH routing numbers are used for payroll direct deposits, loan and mortgage repayments, utility bill payments, tax payments and refunds, charitable donations, personal and business transfers, B2B payments, eCommerce checkouts, and mobile payment apps. Here's how individuals and companies use them across each of these:

Payroll direct deposits: Companies transfer salaries into employee bank accounts via ACH. They only need the employee's bank ACH routing number and their bank account number.

Loan and mortgage repayments: Borrowers set up auto-debit instructions so lenders pull monthly payments directly from their accounts.

Utility bill payments: Consumers set an ACH and electricity, gas, water, and internet providers collect monthly fees automatically.

Tax payments and refunds: The IRS uses ACH to disburse federal tax refunds and accepts ACH-based payments for tax dues.

Charitable donations: Nonprofits and fundraising platforms process contributions from donors through ACH, which reduces card processing fees.

Personal and business fund transfers: ACH is also used to move money between checking and savings accounts, or between a personal and a business account.

B2B payments: Organizations pay suppliers, contractors, and vendors through ACH, which is a faster and‌ lower-cost alternative to issuing paper checks.

eCommerce checkouts: Online merchants offer ACH as a payment method, especially for high-value purchases to save on card fees.

Mobile payment apps: Platforms like Venmo use ACH to move money between users and linked bank accounts.

What Does an ACH Routing Number Look Like?

An ACH routing number has nine digits; it’s completely numeric, there are no letters or special characters.

For example, Bank of America's ACH routing number for electronic payments in certain states is 021000322. Their wire transfer routing number is entirely different 026009593.

A single bank can have multiple ABA routing numbers, each assigned to a specific transaction. The ACH routing number depends on the state where the account was first opened and not where the business or individual is located. It also varies according to the region, account, and transaction type within the same bank. The sender must always confirm the ACH routing number before any transfer.

Each digit in an ACH routing number has a meaning:

Digits 1–2 (02): The first two digits identify the Federal Reserve Bank district where the institution is located. There are twelve Federal Reserve districts in the US; ACH-specific routing numbers often begin with digits in the 61–72 range.

Digits 3–4 (10): These two digits specify the Federal Reserve Bank branch or processing centre within that district.

Digits 5–8 (0008): These digits are the institution's unique identifier within its Federal Reserve district; this distinguishes one bank from another.

Digit 9 (9): The last digit is the check digit, calculated using a mathematical algorithm applied to the first eight digits. Its purpose is to verify that the routing number is valid and that no digits were entered incorrectly.

<a href="https://routingnumber.aba.com/Search1.aspx">Check an ACH routing number here</a>

You could confuse between an ACH routing number and a bank account number. Here are some tactics to help you identify which one is which:

Routing number (9 digits): Identifies the financial institution

Account number (8–12 digits, varies by bank): Identifies the individual account held at that institution

Both ‌numbers appear at the bottom of the paper check. The routing number is always the first nine digits on the bottom left, followed by the account number, and then the check number.

You can find an ACH routing number at the bottom of a paper check, in an online banking portal, in a mobile banking app, on bank statements, on the bank's official website, through the ABA routing number lookup tool, in the Federal Reserve's Fedwire directory, or by phone. When your US-based client makes an ACH payment, they need to know where to look, and you can guide them so the money reaches your virtual USD account correctly. Here's a closer look at each:

Always confirm with your client or their bank that they are using the ACH-specific routing number. Using the wire routing number by mistake can cause the transfer to fail or incur higher fees.

ACH Routing Number, ABA Number, SWIFT Code &amp; IFSC Code

You might get confused between the ACH Routing Number, ABA Number, S<a href="https://www.skydo.com/blog/is-ifsc-and-swift-code-same">WIFT Code &amp; IFSC Code</a> when you’re dealing with a US client. Mixing them up can cause failed transfers, delays, or unexpected deductions.

An ACH routing number and an ABA routing number are both nine-digit numeric codes, but they are not always the same. The ABA routing number is the broader category, created for paper check processing. The ACH routing number is a specific type of ABA number used for electronic transactions. Some banks use the same nine-digit number for both; always ask your client which number applies to electronic ACH transfers specifically.

A <a href="https://www.skydo.com/blog/international-wire-transfer-all-you-need-to-know">wire</a> routing number ‌is used for real-time, high-value wire transfers between banks. For example, a bank might use one number for ACH direct deposits and a different number for domestic wire instructions. The payment may still go through if your client uses a wire routing number instead of an ACH routing number, but it will trigger a different and costlier processing path.

<a href="https://www.skydo.com/blog/swift-money-transfer-ultimate-guide">SWIFT</a> codes are used for international transfers only. They have no role to play in domestic US ACH transactions. In the same way, ACH routing numbers cannot be used for a payment to a bank outside the US.

IFSC codes are the Indian equivalent of ACH routing numbers. It is assigned by the Reserve Bank of India, and made of an 11-character alphanumeric code identifying every Indian bank branch participating in NEFT, RTGS, and IMPS. It is entirely domestic and has no function in cross-border payments.

<a></a>How Do ACH Routing Numbers Work in Cross-Border Payments? An Example

In a cross-border payment, the ACH routing number tells your client's US bank which account to send funds to, routing the payment to your virtual USD account, from where the platform converts it to INR and settles it in your Indian bank account with a FIRC/FIRA issued as proof. Here's how it plays out with a real number.

Say a US client owes you $5,000 for a completed project:

How Does Skydo Help You Receive ACH Payments in India?

Skydo is an India-based payment platform. It provides virtual USD accounts to Indian freelancers or any business owner with US-based clients. Besides the account number, each account comes with its own ACH routing number, which you can share with clients to receive ACH payments.

Setting up Skydo only takes 15 minutes; there are no monthly subscription fees. You pay only when you transact.

Skydo charges a flat fee based on your transaction amount: under $2,000 = $19; $2,000–$10,000 = $29; over $10,000 = 0.3%. All-in-all your total fees stay under 2% compared to the 5%-10% that Indian banks or other platforms, like PayPal, charge.

After you receive an international payment, Skydo issues an FIRA automatically, which you download directly from your dashboard. An FIRA is a crucial RBI compliance document to prove you received an international payment in India.

From setting up a virtual account to track payments, you can do all that on your own without following up with your banking relationship manager or chasing clients for SWIFT copies. You get real-time visibility into your payments, so you always know when the funds will arrive in your bank account.

Besides USD, Skydo also supports virtual accounts in SGD, EUR, GBP, AUD, and CAD.

So if you’re an Indian freelancer or an exporter looking for a cost-effective alternative to banks that also provides free FIRA and real-time tracking, check out <a href="https://www.skydo.com/">Skydo</a> today.

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<a></a>What Is an MT202 SWIFT Message?

MT202 is a SWIFT format message for interbank transfers only. It remains exclusively in the interbank network. Individual customers, businesses, or other non-bank entities cannot initiate, send, or receive an MT202 message. Instead, banks use it to instruct other banks to transfer funds between financial institutions rather than to a person or company.

It is generally the instruction that banks use to settle liquidity movements within themselves, i.e., between a bank's own nostro and vostro accounts. It is the infrastructure of settlement on the SWIFT network.

When an interbank transfer is linked to an underlying customer payment, banks use an MT202 COV. Unlike a standard MT202, an MT202 COV includes details of the related customer transaction while still facilitating settlement between banks.

Within the SWIFT network, MT stands for "Message Type", and 202 identifies the specific message format used for interbank fund transfers under SWIFT's legacy FIN (Financial Information) messaging system.

<a></a>MT202 vs MT103: Key Differences

MT103 and MT202 are among the most commonly discussed SWIFT message types that differ in their purpose. MT103 is used for customer payments, while MT202 is used for interbank fund transfers between financial institutions. The sections below explain the key differences.

<a></a>MT103: The Customer Transfer

The <a href="https://www.skydo.com/blog/mt103-what-is-it-why-it-matters-and-how-to-get-one">MT103</a> SWIFT message is the "Customer Credit Transfer" instruction, representing the whole payment instruction from the paying bank to the receiving bank. It involves who paid, whom to pay, references, and charges. It contains the beneficiary details, payment references, and charges. As it contains all the key transaction details, it serves as the primary document for tracing a customer payment and acts as proof that the payment instruction was sent.

<a></a>MT202: The Bank Transfer

The MT202 is the "General Financial Institution Transfer" and supports the settlement of <a href="https://www.skydo.com/blog/cross-border-payments">cross-border payments</a> by transferring funds between correspondent banks. There is no beneficiary customer data but only banking data to identify the involved institutions and amount/value date.

Below is the breakdown of what each message is communicating:

Here is a tabular version of the key differences between MT103 and MT202:

<a></a>How Does MT202 SWIFT Message Work?

An MT202 SWIFT message works by facilitating the movement of funds between banks during an international wire transfer. The process begins with an MT103 customer payment instruction, routes the funds through one or more correspondent banks using MT202 messages, and ends when the beneficiary's bank credits the recipient's account. The steps below explain the process in detail:

<a></a>MT202 SWIFT Message Example

Suppose a client in the US sends a payment to an exporter in India. If the sender's bank and the recipient's bank do not have a direct banking relationship, the payment is routed through one or more correspondent banks. In such cases, MT202 (or MT202 COV for cover payments) is exchanged between the banks to facilitate interbank settlement before the funds reach the beneficiary's bank.

Chasing SWIFT references and figuring out which message serves as proof of your payment shouldn't be your responsibility.<a href="https://www.skydo.com/"> Skydo </a>gives Indian freelancers and exporters real-time payment tracking, automatic FIRA documentation, and flat-fee pricing, so you know exactly when your money lands and what it costs. No RM calls. No SWIFT copy chasing!

<a></a>MT202 SWIFT Message Format

The specific details of the SWIFT MT202 fields are set out within Block 4 (Text Block) of the SWIFT message envelope. There are other blocks comprising an envelope, way for routing and security information, but the core message carrying the payment information between banks is contained in Block 4.

Below are the SWIFT MT202 format specifications for Block 4:

M = Mandatory, O = Optional. Network validated rules may apply to optional fields depending on the scenario.

A few fields worth highlighting for Indian exporters:

<a></a>MT202 vs MT202 COV: Differences &amp; Why We Need Them Both

One of the most important and frequently misunderstood distinctions in SWIFT messaging for cross-border payments is the difference between MT202 and MT202 COV.

<a></a>MT202 (Standalone)

A standard MT202 is purely intended for interbank transactions, forex deals, bank private business, and treasury activities with absolutely no retail participation. Given that the consumer funds are not directly at risk, this message requires only the participating banking institutions as both the sender and the receiver identities.

<a></a>MT202 COV (Cover Payment)

An MT202 COV ("cover") is included when a bank-to-bank payment represents payment in respect of underlying customer payments (MT103). If a client payment is processed using correspondent banking structures and a "cover" arrangement is used, the additional message would be an MT202 COV and not a standard MT202 message.

Unlike a standard MT202 message, an MT202 COV includes a mandatory Sequence B block that carries:

Conceptually, an MT202 COV can be thought of as:

Standard MT202 + Customer Information from the Related MT103 = MT202 COV.

This distinction was introduced in 2009 following the FATF (Financial Action Task Force) recommendations aimed at strengthening anti-money laundering (AML) compliance in correspondent banking. Under these requirements, customer information must accompany the payment throughout the correspondent banking chain rather than remain only with the originating bank.

If your overseas customer makes a payment using the cover payment method, an MT202 COV helps transmit your details through the correspondent banking network. This allows the required customer information to accompany the payment in compliance with AML regulations, even though you never see the message.

<a></a>How Does Skydo Simplify Cross-Border Payments?

For the vast majority of Indian freelancers and exporters, the complications of MT202, MT103, and correspondent banking chains are just static in the background. However, their impact is evident in the form of delayed settlements, unexpected fee deductions, limited payment visibility, and compliance documentation requirements.

This is where Skydo makes a difference. It simplifies cross-border payments by addressing the common challenges associated with traditional banking in several ways:

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ACH (Automated Clearing House) is a U.S. Electronic batch payment network operated by <a href="https://www.nacha.org/content/how-ach-payments-work">Nacha</a>, formerly the National Automated Clearing House Association. Unlike wire transfers, ACH payments are not processed in real time. The payment batch process usually takes several days to settle.

ACH returns happen if an ACH payment fails to transmit for some reason. The Receiving Depository Financial Institution (RDFI), in most cases, is the bank that is trying to process a payment into a recipient’s bank account. If it identifies a problem, it sends the ACH payment back to the originating bank with a return code explaining the reason for the failure.

The transaction acts like a bounced electronic check, where funds are temporarily visible before being reversed. It is easy to confuse an <a href="https://www.skydo.com/blog/what-is-ach-payment">ACH return</a> with other payment reversals, but three distinct terms matter most here:

When an ACH payment fails to transact, the recipient’s bank assigns a common error code for each failed payment so you can see whether the problem is a typo, a coding glitch, or a cash shortage at your customer’s end.

Here are the most common causes of ACH returns based on Nacha classifications:

As for other return codes, standard codes R01-R04 and R09 have 2 days to clear. Unauthorised return codes (R05, R07 and R10) have a much longer settlement window of 60 days for consumer accounts.

Nacha identifies failed transfers by using 3 standardised character codes, the letter "R" and two numbers, across all U.S. Banks. Also, an addenda record is attached to the return that provides information regarding the transaction.

<a></a>The 10 Most Frequent ACH Return Codes

The codes range from R00 to R82 (more than 80 in all), but the top 10 that are seen in business practices are as follows:

Reference: Standard returns take 1-2 banking business days to be handled from the settlement of payment, while Extended (unauthorised) consumer returns may take up to 60 calendar days. Refer to the <a href="https://www.nacha.org/">Nacha Operating Rules</a> for the transaction code's time frame.

<a></a>Return Codes That Signal Fraud or Dispute

Some ACH return codes go beyond payment failures and may indicate disputes, fraud claims, or regulatory issues.

ACH returns must also follow specific timelines, which vary depending on the reason for the return.

<a></a>How Does the ACH Return Process Work?

The ACH return process works by cycling a failed payment backward through the bank networks, from the receiving bank that flags the problem back to the originating bank that started it. Here is how each step plays out:

The customer sends ACH payment instructions to their bank (the Originating Bank, ODFI), which then transmits the transaction data into the ACH network.

The ACH Operator validates protocols and routes them to the destination bank (RDFI), where data is received into the bank system.

RDFI detects the error, such as a low balance or the account being closed and creates a return code.

The client is informed by the ODFI of the failed payment. Financial institutions and processors charge a wide range of fees in accordance with their policies.

If the account information is wrong, the RDFI might return an NOC so the originator can correct the entry.

Nacha permits two retries per entry. Only entries with R01 and R09 codes can be re-presented if initially rejected due to an invalid return.

<a></a>How Do ACH Returns Affect Indian Businesses?

The US ACH network will not directly route to Indian accounts. When a failure occurs, it leads cross-border businesses into platform clawbacks, lengthy information dead zones and serious compliance risk. Some complications include:

<a></a>ACH Return vs ACH Reversal: What Is the Difference?

An ACH return is automatically issued by the bank that would process the money if something goes wrong, such as insufficient funds, the account has been closed, etc. Whereas, ACH reversal is the sender manually asking to get funds back because of administrative mistakes, such as accidentally sending a duplicate payment or sending the wrong amount. However, there is no guarantee the money will be returned if it has already been withdrawn from the account.

The table below clarifies the key differences:

Note: ACH returns and ACH reversals are different from credit or debit card chargebacks. Chargebacks are part of card payment networks and do not apply to ACH transactions.

While ACH cancellation is different from both. It is an attempt to stop an ACH transaction before it is processed or settled. Once the transaction has entered the ACH clearing process, it generally cannot be cancelled through a formal Nacha process.

ACH returns and ACH reversals are also different from chargebacks, which apply only to card payments and not to ACH transactions.

<a></a>Returning vs Cancelling an ACH Payment: Key Difference

The defining feature distinguishing the two acts is settlement. Cancellations occur before the monetary transfer, while returns occur post-payment.

<a></a>How Does Skydo Protect You From ACH Return Risks?

ACH returns are painful for one reason: a payment you thought had landed can quietly reverse days later, and with traditional banks or platforms you often have no visibility until it is too late. <a href="https://www.skydo.com/">Skydo</a> removes that risk at the source. Skydo makes it simpler with dedicated USD, GBP, EUR, SGD, AUD and CAD virtual accounts specifically for Indian exporters that are RBI-authorised PA-CB.

If your US-based client uses a wire transfer to send funds directly to your Skydo USD account, the transaction is not subject to ACH return rules. In other words, once a wire is received, it does not have the same risk of reversal.

Apart from the payment method, Skydo is also the solution to the opacity issue that costs a lot in the event of ACH returns. Here is how Skydo helps:

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What Is an Authorised Dealer (AD) Bank in India?

An Authorised Dealer (AD) bank in India is a bank licensed by the Reserve Bank of India (RBI) to deal in foreign exchange transactions, including receiving inward remittances on behalf of Indian businesses and individuals.

AD banks are the primary channel through which foreign currency enters India legally. They convert incoming foreign currency into INR and credit the recipient's account. For Indian exporters and freelancers, the AD bank is typically their existing savings or current account bank, such as HDFC, ICICI, or SBI, and they receive international wire transfers directly into that account via SWIFT.

For example, a Pune-based software consultant invoices a UK client £2,000 and receives the payment into their HDFC current account. HDFC acts as the AD bank, converting and crediting the INR equivalent.

What Is a Payment Platform for International Payments?

A payment platform for international payments is a digital intermediary, authorized by the RBI, that gives Indian freelancers and businesses foreign currency virtual accounts, collects payments from overseas clients, and settles the equivalent INR into the user's Indian bank account.

Unlike AD banks, payment platforms are purpose-built for <a href="https://www.skydo.com/blog/cross-border-payments">cross-border collections</a>. They handle the routing, currency conversion, and compliance layer digitally, so you don't need to walk into a branch or speak to a relationship manager (RM).

Payment platforms typically offer virtual account numbers in currencies like USD, EUR, and GBP. You share the number with your foreign client, the client pays into that virtual account as a local transfer, and the platform settles INR to your Indian bank account.

For example, a Chennai-based content writer signs up for Skydo, gets a US virtual account number, and shares it with an American client. The writer receives $2,500, and the platform handles the conversion and credits INR within one working day.

How Do AD Banks and Payment Platforms Actually Work for Inward Remittances?

For inward remittances, AD banks rely on the SWIFT network for wire transfers, while payment platforms use virtual accounts and local payment rails to collect funds from foreign clients and settle INR domestically.

How Payment Platforms Process Inward Remittances

AD Bank vs Payment Platform: How Do They Compare on Cost, Speed, and Compliance?

Compared head-to-head, AD banks tend to cost more and take longer to settle, with a forex markup of up to 8% plus SWIFT and intermediary fees and settlement in 2 to 5 business days. RBI-authorized payment platforms offer predictable fees and faster INR credit, within 1 working day on Skydo. Both can satisfy compliance requirements for Indian exporters and freelancers.

On a bank wire, the <a href="https://www.skydo.com/blog/international-bank-transfer-fees-freelancers-india">international bank transfer fees</a> are a forex markup plus SWIFT and intermediary fees. Skydo charges $19 under $2,000, $29 from $2,000 to $10,000, and 0.3% above $10,000. The table lays out the two options side by side.

Worked Example: Bangalore-Based UX Designer Receiving $3,000 From a US Client

Can a Payment Platform Issue a FIRC Certificate for Foreign Payments?

Yes. RBI-authorized payment platforms can issue FIRC-equivalent certificates, such as a FIRA (Foreign Inward Remittance Advice), that are equally valid for GST filing, income tax assessments, and export-related compliance in India.

When Should You Use an AD Bank vs a Payment Platform?

Use an AD bank when the transaction type or amount requires direct bank involvement. Use a payment platform when you are a freelancer, agency, or service exporter receiving regular foreign payments and want lower costs, faster settlement, and automated documentation.

The practical answer for most Indian freelancers and agencies is to use a <a href="https://www.skydo.com/blog/payment-gateway-for-international-payments-india">payment platform</a> as the collection layer and your existing AD bank account as the landing account for INR. They work together. You still need an AD bank account to receive the INR that Skydo settles.

If you receive under $10,000 per transaction as a freelancer or agency, compare what your current bank charges you against <a href="https://www.skydo.com/">Skydo's flat fee</a>.

How Does Skydo Help Indian Freelancers and Agencies Receive Foreign Payments?

A bank wire can cost you in several places. Intermediary banks may deduct fees along the SWIFT chain, the bank's exchange rate includes a forex markup, and settlement can take 2 to 5 business days. <a href="https://www.skydo.com/">Skydo</a> is built to remove those friction points for Indian freelancers, agencies, and service exporters. You get free virtual accounts in six currencies, flat fees of $19 or $29 up to $10,000 and 0.3% above that, INR credit within one working day, and automatic compliance documentation.