Your routing number is a nine-digit code that tells the banking system which bank holds your account
A routing number is a unique identifier assigned to your bank or credit union by the Federal Reserve. When you send money to someone else's account—whether through a wire transfer, direct deposit, or automatic bill payment—the routing number tells the financial system exactly which institution to send that money to. Without it, the payment has no address.
The routing number is not the same as your account number. Your account number identifies your specific account at that bank. The routing number identifies the bank itself. You need both pieces of information to receive money from outside sources or to set up outgoing transfers.
Every bank and credit union in the United States has its own routing number. If you have accounts at two different banks, each one has a different routing number. Some large banks have multiple routing numbers depending on which state or region the account was opened in.
Key Takeaways
- Your routing number is a nine-digit code that identifies your specific bank or credit union, not your individual account.
- You can find your routing number on the bottom left of your checks, on your bank's website, or by calling your bank directly.
- The routing number is required for wire transfers, direct deposits, and setting up automatic bill payments.
- If your bank has multiple routing numbers by region or account type, make sure you use the one that matches your specific account.
Where to find your routing number
The easiest place to look is the bottom left corner of any check you have from that account. The first nine digits printed there are your routing number. The second set of numbers is your account number.
If you do not have checks or prefer not to use them, log into your bank's online portal or mobile app. Most banks display the routing number in the account details or transfer settings section. Some banks label it "ABA number" or "routing code"—these terms mean the same thing.
You can also call your bank's customer service line and ask for your routing number. Have your account number ready when you call. If you are setting up a direct deposit with an employer or government agency, they often have a tool on their website where you can enter your bank name and it will populate the correct routing number automatically.
Why you need it for different types of transfers
When your employer sets up direct deposit, they use your routing number and account number to send your paycheck to the right place. The same applies if you receive benefits from a government program—Social Security, unemployment, tax refunds—all require your routing number to deposit funds.
If you are paying a bill through your bank's bill pay service, you provide the routing number of the company or person receiving the payment. For wire transfers—which move money faster but are harder to reverse—both the sending and receiving banks use routing numbers to confirm the transaction is going to the correct institution.
When you set up automatic payments from your account, such as a mortgage or insurance premium, you give the creditor your routing number and account number so they can pull the payment on the scheduled date.
What happens if you use the wrong routing number
If you provide an incorrect routing number, the payment will either be rejected before it goes through, or it will be sent to the wrong bank. If it reaches the wrong bank, that institution will usually catch the error because the account number will not match any account in their system, and the money will be returned to the sender.
This process can take several business days. During that time, your payment appears to be pending, and you may not know whether it went through. If a bill payment is delayed this way, you could face a late fee from the creditor, even though the error was not your fault.
To avoid this, double-check the routing number before you submit any transfer. If you are unsure, call your bank and confirm it matches the one you are about to use.
Routing numbers for different account types at the same bank
Some large banks assign different routing numbers based on the state where you opened the account or the type of account you hold. A checking account and a savings account at the same bank might have the same routing number, but they might not.
If your bank has multiple routing numbers, use the one that corresponds to the account you are transferring from or to. Your bank's website or customer service can tell you which routing number belongs to your specific account. When in doubt, provide the routing number printed on your checks—that one is always correct for that account.
Routing numbers versus SWIFT codes and IBAN numbers
If you are sending money to someone outside the United States, you will not use a routing number. International transfers use a SWIFT code (also called a BIC code) to identify the foreign bank, and an IBAN (International Bank Account Number) to identify the account within that bank.
A SWIFT code is similar to a routing number in that it identifies a specific bank, but it is used only for international transfers. Your U.S. bank can provide your SWIFT code if you need to receive money from abroad. The IBAN is a longer code that varies by country and serves the same purpose as your account number, but is formatted differently.
For transfers within the United States, use only your routing number and account number. Do not ask for or provide a SWIFT code or IBAN unless you are specifically told the money is coming from outside the country.
Keeping your routing number find
Your routing number is not sensitive information in the way your account number or Social Security number is. It is printed on every check you write and is publicly available through your bank's website. However, you should not share it with anyone you do not trust.
If someone asks for your routing number and account number together, verify that they are a legitimate organization before you provide them. Scammers sometimes pose as banks or government agencies and request this information to set up unauthorized transfers from your account.
If you believe someone has misused your routing number and account number, contact your bank when ready. Your bank can monitor the account for unauthorized activity and may be able to reverse fraudulent transfers depending on how quickly you report them.
Frequently Asked Questions
Can I use the same routing number for all my accounts at one bank?
Usually yes, but not always. Most accounts at the same bank share one routing number. However, some large banks use different routing numbers by state or account type. Check your statements or call your bank to confirm which routing number belongs to the specific account you are using.
What if my bank merged with another bank?
Your routing number may change after a merger. Your bank will notify you of any change and provide your new routing number. Update any automatic payments or direct deposits with the new number. If you have old checks, they may still work temporarily, but you should order new ones with the updated routing number.
Is my routing number the same as my bank's main routing number?
Not necessarily. Your specific account may have a different routing number than the main number listed on your bank's website. Always use the routing number that appears on your checks or in your account details, not the general bank number.
Can someone steal money from my account with just my routing number?
Not with the routing number alone. A thief would need both your routing number and your account number to set up unauthorized transfers. Even with both, most banks have fraud detection systems that catch suspicious activity. Report any unauthorized transfers to your bank when ready.
Do credit unions have routing numbers?
Yes. Credit unions are assigned routing numbers just like banks. You can find your credit union's routing number the same way you would for a bank—on your checks, in your online account, or by calling their member services line.