A routing number is a nine-digit code that identifies which bank or credit union holds your account
Every bank and credit union in the United States has its own routing number, assigned by the American Bankers Association. When you send money to someone else's account—whether through direct deposit, a wire transfer, or an automatic bill payment—you give the routing number so the money goes to the right financial institution. Without it, the payment system would not know which bank to send your money to.
The routing number is not secret and not unique to you. Thousands of people at the same bank share the same routing number. It identifies the bank itself, not your individual account. Your account number is what identifies you within that bank.
You will see routing numbers called by different names depending on the context: ABA number, transit number, or bank routing code. They all mean the same thing.
Key Takeaways
- A routing number is a nine-digit code that tells the payment system which bank to send money to, and every U.S. bank and credit union has one.
- You need your routing number whenever you set up direct deposit, make a wire transfer, or arrange automatic bill payments.
- 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 not private information—it is safe to share with anyone who needs to send you money.
Where to find your routing number
The easiest place to find your routing number is the bottom left corner of any check you have from that account. The first set of nine digits is your routing number. The second set of numbers is your account number.
If you do not have checks, log into your bank's website or mobile app. Most banks display the routing number in the account details section, often labeled "Routing Number," "ABA Number," or "Transit Number." Some banks put it under a "Wire Transfer Information" or "Account Information" tab.
You can also call your bank's customer service line and ask for your routing number. They will give it to you over the phone. If you bank at a credit union, the same methods apply—check your statements, log into your account online, or call the credit union directly.
Why routing numbers matter for refunds and payments
When a government agency, employer, or business sends you a refund or payment by direct deposit, they need both your routing number and your account number. The routing number directs the money to your bank; the account number directs it to your specific account within that bank.
If you provide the wrong routing number, the money may go to a different bank entirely, and you will have to contact the sender to correct it and resubmit. This can delay your refund by days or weeks. Providing the correct routing number the first time prevents this problem.
Tax refunds, stimulus payments, unemployment benefits, and insurance refunds all use direct deposit when you set it up. Each one requires your routing number along with your account number.
Routing numbers for different types of accounts
Most people have one routing number for their bank, but some larger banks use different routing numbers for different regions or account types. If you have a checking account and a savings account at the same bank, they usually share the same routing number—but not always.
If you are setting up direct deposit for a specific account, use the routing number for that account type at that bank. When in doubt, call your bank and confirm which routing number to use for the account you are depositing into.
Online banks and credit unions have routing numbers just like traditional banks. If you bank entirely online, you can find your routing number the same way: check your statements, log into your account, or call customer service.
What happens if you use the wrong routing number
If you provide an incorrect routing number when setting up direct deposit or a wire transfer, the payment will go to the wrong bank. The receiving bank will either reject it and send it back to the sender, or it may sit in a holding account while the bank tries to figure out where it belongs.
Once the sender realizes the error, they will ask you for the correct routing number and resubmit the payment. This process can take anywhere from a few days to two weeks, depending on how quickly the error is caught and corrected.
To avoid this, double-check your routing number against a check or your bank's website before you submit it. If you are not certain, call your bank and confirm the number before giving it to the sender.
Routing numbers versus account numbers
A routing number identifies your bank. A account number identifies you within that bank. Together, they form the complete address for your account.
Your account number is usually 8 to 12 digits long and appears on your checks, statements, and online banking portal. It is unique to you at that bank. Your routing number is always nine digits and is shared by everyone who banks at that institution.
When you set up direct deposit or authorize a wire transfer, you need both numbers. The routing number tells the system which bank to contact; the account number tells the bank which account to deposit the money into.
Frequently Asked Questions
Is it safe to give someone my routing number?
Yes. Your routing number is not secret and is safe to share. It only identifies your bank, not your account. Someone would need both your routing number and your account number to access your account, and even then they would need authorization from your bank. Never share your account number or PIN with anyone you do not trust.
Do I need a different routing number for each account I have?
Usually not. If you have a checking account and a savings account at the same bank, they typically share the same routing number. However, some large banks use different routing numbers for different regions or account types. Check with your bank if you are unsure which routing number to use for a specific account.
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 update your account information. If you have direct deposit set up, contact your employer or the organization sending the payment and provide the new routing number. Your bank can confirm your current routing number at any time.
Can I find someone else's routing number?
Yes, routing numbers are public information. If you know someone's bank name and location, you can search for their routing number online using a routing number lookup tool. However, you still need their account number to send them money, and that is private information only they should share.
What if I entered my routing number wrong when setting up direct deposit?
Contact the organization sending the payment as soon as you realize the error. Provide them with the correct routing number and ask them to resubmit the payment. They will cancel the incorrect submission and send the money to the right bank. This process usually takes three to five business days once you provide the correct information.