
Image Source: pexels
When conducting banking operations, you must distinguish between the bank routing number and the account number. The routing number identifies the financial institution, while the account number points to your personal account within the bank. Mixing up these details can cause errors in transfers or payments. Bank Routing Numbers are essential to ensure the money reaches the correct bank.

Image Source: unsplash
Bank Routing Numbers are nine-digit codes that identify the financial institution where you have your account. You may find these numbers under other names, such as RTN, ABA, or sort code. Each bank or credit union has its own routing number, which allows it to be distinguished from other entities.
The bank routing number serves an essential function in electronic transfers. This code ensures that the money reaches the correct bank when you perform operations such as payroll deposits, automatic payments, or bank transfers. The system uses the routing number to identify the receiving bank, while the account number points to the specific account within that institution.
Remember: If you enter an incorrect routing number, the transaction may fail or be sent to the wrong bank.
You can find Bank Routing Numbers in several places. Here is a list of the most common places where you can locate them:
Bank Routing Numbers have a specific structure. The first digits usually indicate the bank’s geographic location, while the following ones identify the institution. The last digit verifies that the number is valid. This structure helps the banking system process transactions securely and efficiently.
When using services like direct deposits, interbank transfers, or automatic payments, you always need the routing number. This ensures the money reaches the correct bank and is not lost in the process.

Image Source: unsplash
The bank account number allows you to identify a specific account within a financial institution. According to international regulations, this number is presented as the IBAN (International Bank Account Number). The IBAN is an alphanumeric code that can have up to 34 characters, although in Spain it consists of 24. It includes the country code, two control digits, and the account information. The IBAN facilitates international transfers and helps validate that the account exists and is correct. The control digits within the IBAN allow for detecting errors when writing or copying the number.
The bank account number serves several essential functions in your daily life. It identifies your account when receiving transfers, paying for services, or managing your finances. Whenever someone needs to send you money, they must know your account number. You also use it to set up direct debits, such as loan payments or utility bills. If you want to deposit money into someone else’s account, you need their account number. Additionally, this number ensures security in operations, as the bank may request documents or codes to authorize transactions.
The most common operations where you use the bank account number are:
You can find your bank account number in several places. The IBAN appears on the front of your bankbook, on bank statements, and in online banking within the user area. The account number is usually at the end of the IBAN and has up to 10 digits. If you have doubts, you can request it directly from your bank. Remember that, although the account number and Bank Routing Numbers are used together in some operations, each serves a different function, and you must identify them correctly.
To help you easily distinguish between the bank routing number and the account number, see the following comparison table:
| Feature | Bank Routing Number | Bank Account Number |
|---|---|---|
| Function | Identifies the financial institution | Identifies your specific account within the bank |
| Length | 9 digits | Variable (up to 24-34 characters in IBAN) |
| Privacy | Public, appears on websites and checks | Private, only you and the bank should know it |
| Location | Checks, online banking, banking app | Checks, bank statements, online banking |
| Use | Transfers, direct deposits, automatic payments | Access to funds, transfers, direct debits |
In many electronic transactions, you must provide both numbers to ensure the money reaches the correct destination. For example:
In other operations, you only need the account number, such as when transferring funds between your own accounts within the same bank.
You must not confuse the bank routing number with the account number. Each serves a unique and necessary function. If you enter incorrect information, you may face several issues:
Tip: Before confirming any transaction, carefully review both numbers. This avoids delays, returns, and possible additional charges.
Remember that Bank Routing Numbers and the account number work together to ensure your transactions are secure and fast. If you have doubts, always consult with your bank, especially if you use services in Hong Kong banks or need to transfer funds in USD.
You can easily identify Bank Routing Numbers and the account number on your checks and bank statements. On a check, the routing number appears as the first block of nine digits in the bottom left corner. Right after, you will see the account number, which is usually in the center. If you have a bank statement, look for a section detailing your account information. There, you will typically see the account number and, in some cases, the routing number as well. These details allow you to make transfers and payments without errors.
Tip: Before using these numbers, verify that they correspond to the correct account and bank. An error can delay your transactions.
Online banking makes it easy to locate both numbers. Just follow these steps:
If you manage multiple accounts, you can use systems like Lockbox to correctly associate each routing number and account number with the corresponding client. This prevents confusion and ensures each transaction is processed correctly.
Additionally, there are online tools to verify the validity of Bank Routing Numbers. For example, the bank-codes.es website offers a dedicated verifier for U.S. bank routing numbers. You can also validate other international banking codes, such as IBAN, CLABE, and Swift code. This option is useful if you need to confirm the routing number is correct before making a transfer.
Note: Always validate the numbers before sharing or using them in important transactions. This protects your money and avoids costly errors.
When conducting banking operations, you need to know when to use Bank Routing Numbers and when to use the bank account number. Bank Routing Numbers are required in situations where the money must reach the correct financial institution. For example, if you receive your salary via direct deposit, the company requests this number to ensure the payment reaches the right bank. You also need it when setting up automatic payments for services, such as electricity or water, and when making transfers between different banks. If you send money from a Hong Kong bank to another international bank, the system requires the routing number to identify the receiving entity.
On the other hand, the bank account number is used to identify the specific account where the money will be deposited. When making internal transfers, i.e., between accounts within the same bank, the system always asks for the account number. This information is crucial to ensure the money reaches the correct person. Additionally, you use it when receiving transfers, paying for services, or accessing your funds.
Note: Always verify that the details are correct before confirming any transaction. An error can cause delays or loss of money.
Imagine you work for a company in Hong Kong and receive your salary in USD. For the direct deposit to work, the company requests your bank’s Routing Number and your account number. This way, the money reaches the institution and your personal account without issues.
If you want to pay your mobile phone bill automatically each month, you must provide both numbers to the service provider. The banking system will use the Bank Routing Number to identify the bank and the account number to charge the payment to your account.
When transferring money between your own accounts within the same bank, you only need the destination account number. The bank does not require the routing number because it already knows which institution the account belongs to. In these cases, the account number is essential to ensure the money is transferred correctly to the beneficiary account, along with other details such as the account holder’s name and the amount.
If you send money to a family member in another country, the system will ask for the Bank Routing Number, the account number, the Swift/BIC code, and other details to complete the international transfer.
Distinguishing between the bank routing number and the account number helps you avoid errors in your transactions. The routing number identifies the bank, while the account number points to your personal account. If you review both details before each transaction, you can prevent issues like duplicate payments or deposits to the wrong accounts.
Remember: Always consult with your bank if you have doubts and perform a detailed reconciliation of your transactions.
Financial institutions recommend these measures to protect your bank account number:
1. Use two-factor or biometric authentication.
2. Limit access to your data to authorized personnel only.
3. Activate alerts to detect suspicious activities.
4. Train yourself on banking security.
5. Minimize exposure of your data by using specialized tools.
Always verify your details before operating. This reduces the risk of errors and protects your money.
Yes, you can use the same bank routing number for multiple accounts if they belong to the same bank and branch. The routing number identifies the institution, while the account number distinguishes each account.
You must contact your bank immediately. If the transfer has not been processed, you can cancel it. If the money has already been sent, the bank will try to recover it, but this is not always possible.
Open your bank’s app, go to the account details section, and look for the banking information section. There, you will see the routing number alongside the account number. If you can’t find it, check the bank’s online help.
You can share your account number to receive payments, but never share your passwords or PINs. The account number alone does not allow access to your money without additional authorization. Always keep your personal information protected.
When sending money across borders, mis-typed routing or account numbers can lead to delays, extra charges, and lost time. With BiyaPay, you stay in control: real-time FX checks and instant conversion, transfer fees starting at just 0.5%, and the flexibility of multiple fiat and digital currencies. Best of all, BiyaPay delivers same-day transfers with same-day arrival, ensuring your funds reach the destination quickly and securely. Registration is simple, and you always see the exact delivered amount before you confirm. Discover a smarter way to transfer with BiyaPay.
Send faster and safer—get started today with BiyaPay.
*This article is provided for general information purposes and does not constitute legal, tax or other professional advice from BiyaPay or its subsidiaries and its affiliates, and it is not intended as a substitute for obtaining advice from a financial advisor or any other professional.
We make no representations, warranties or warranties, express or implied, as to the accuracy, completeness or timeliness of the contents of this publication.


