A routing number is a nine-digit code that identifies which bank or credit union holds your account
Your bank's routing number tells the financial system where your money lives. When you set up direct deposit, pay a bill by check, or send money to someone else's account, that routing number is how the banking system knows which institution to contact. It is not secret — you can find it on the bottom left of any check you write, and your bank will give it to you by phone or online.
The routing number is specific to your bank and the branch or region where your account was opened, not to you personally. Two people at the same bank may have different routing numbers if their accounts were opened at different branches or if the bank has merged with another since then. This matters because using the wrong routing number can send money to the wrong place, though most banks will catch the error before it goes through.
Key Takeaways
- Your routing number appears on the bottom left of your checks, printed as the first nine digits before your account number.
- You can find your routing number by calling your bank, logging into your online account, or visiting your bank's website — most banks list it in the FAQ or customer service section.
- The routing number identifies your specific bank or credit union, not your individual account, so it stays the same for all your accounts at that institution.
- Using an incorrect routing number can delay or misdirect a payment, but banks typically verify the number before processing large transfers.
Where to find your routing number in seconds
The fastest place to look is the bottom left corner of any check you have written. The routing number is the first set of nine digits, followed by your account number, then the check number on the right. If you do not have checks, open your bank's website and search for "routing number" — most banks have it listed on a FAQ page or in the customer service section. You can also call your bank's customer service line and ask; they will give you the number over the phone.
If you bank online, log into your account and look for a section called "Account Details," "Account Information," or "Wire Transfer Instructions." Many banks display the routing number there alongside your account number. Credit unions often list it the same way. If you cannot find it online or by phone, visit a branch in person with your ID and they will write it down for you.
Why banks have multiple routing numbers
Large banks often have more than one routing number because they have acquired smaller banks over time or operate different divisions. Bank of America, Wells Fargo, and Chase each have several routing numbers depending on which state your account was opened in or which division manages it. This is why it matters to get the right one — using a routing number for a different branch or division can send your money somewhere unexpected.
When you open an account, the bank assigns you a routing number based on where you opened it. If your bank merges with another bank later, your routing number may change, and the bank will notify you. If you move to a different state, your routing number usually stays the same unless you close your account and open a new one at a different branch.
The difference between routing number and account number
Your routing number identifies the bank; your account number identifies you within that bank. Think of it like an address: the routing number is the city and street, and the account number is your house number. You need both pieces of information to send or receive money electronically. The routing number alone tells the system where to go, but the account number tells it which account to deposit into once it gets there.
On a check, the routing number comes first (nine digits on the left), then your account number (usually ten to twelve digits in the middle), then the check number on the right. When you set up direct deposit or a wire transfer, you will be asked for both numbers. If you give the right routing number but the wrong account number, the money goes to the right bank but the wrong person's account.
What happens if you use the wrong routing number
If you provide an incorrect routing number, the payment may be rejected before it is processed, or it may be sent to a different bank entirely. Most banks catch the error during verification and will ask you to correct it. If the money does go to the wrong bank, that bank will usually reject it and send it back to the sender, which can take several business days.
For checks, using the wrong routing number printed on the check can cause the check to bounce or be returned unpaid. For direct deposit or electronic transfers, the sending bank will typically verify the routing number against a database before processing, so major errors are caught early. If you are unsure whether you have the right number, call your bank before sending a large payment.
Routing numbers for wire transfers and ACH payments
The routing number you use for a wire transfer is the same as the one for direct deposit or ACH payments — it is always your bank's routing number. However, some banks list a separate "wire routing number" on their website, which may be different from the standard routing number. If your bank provides both, use the wire routing number for wire transfers and the standard routing number for ACH transfers and direct deposit. When in doubt, call your bank and ask which number to use for the specific type of transfer you are making.
International wire transfers require additional information beyond the routing number — usually a SWIFT code or IBAN — so do not assume the routing number alone is enough for money going outside the United States. Ask your bank for the full set of details needed before you initiate an international transfer.
How to verify you have the correct routing number
Before you send money or set up direct deposit, verify the routing number by calling your bank directly or checking your account online. Do not rely on a routing number someone else gives you — always confirm it with the bank itself. You can also use the Federal Reserve's routing number lookup tool online, which allows you to search by bank name and state to confirm the correct number.
If you are setting up direct deposit for payroll, your employer's payroll department can usually verify the routing number and account number before processing. This is a good safeguard because payroll systems often catch errors that would otherwise go unnoticed. For bill payments, most banks will let you test a small transfer first to make sure the account information is correct before you set up recurring payments.
Frequently Asked Questions
Is my routing number the same as my bank's routing number?
Yes. Your routing number is your bank's routing number — it does not change based on who you are. All customers at the same bank branch typically share the same routing number. The only thing unique to you is your account number.
Can I find my routing number on my debit card?
No. Debit cards do not print routing numbers. You will find it on a check, on your bank's website, or by calling customer service. Some banks print it on statements, but not all.
What if my bank does not have a website or I cannot reach customer service?
Visit a branch in person with your ID and ask for your routing number. They will provide it immediately. You can also write a check to yourself and look at the bottom left — the routing number is printed there.
Do I need a different routing number for each account I have at the same bank?
No. All accounts you hold at the same bank use the same routing number. Your account number is what distinguishes one account from another within that bank.
Can a routing number change?
Rarely, but yes. If your bank merges with another bank, your routing number may change. The bank will notify you in advance and provide your new routing number. Your old routing number may still work temporarily during a transition period.