A routing number tells the banking system which bank holds your savings account
A routing number is a nine-digit code that identifies the specific bank or credit union where your savings account lives. When money moves into or out of your account—whether from direct deposit, a wire transfer, or an automatic bill payment—the routing number is how the sending bank knows where to send it. Without it, the payment system has no address.
Think of it like a postal code for your bank. Your account number is the specific house; the routing number is the city and state. Together, they form a complete destination.
The routing number belongs to the bank itself, not to you personally. Every branch of the same bank uses the same routing number. If you have accounts at two different banks, each one has its own routing number. If you move your savings account from one branch to another branch of the same bank, the routing number stays the same.
Key Takeaways
- Your routing number identifies which bank holds your savings account and is required for any transfer into or out of that account.
- The routing number is nine digits and belongs to the bank, not to you—all customers at the same bank share the same routing number.
- You can find your routing number on the bottom left of your checks, in your online banking portal, or by calling your bank directly.
- Different banks have different routing numbers, so if you switch banks, you will need to update the routing number with any service that sends money to your account.
Where the routing number appears on your checks
If you have a checkbook, the routing number is printed on the bottom left of every check, before your account number. It is the first set of nine digits you see when you look at the bottom of the check in that special magnetic ink.
The order is always: routing number, then account number, then check number. This layout is standardized across all U.S. banks, so once you know where to look, you can find it on any check from your bank.
If you do not have checks or prefer not to dig through a checkbook, there are faster ways to find it.
How to find your routing number without a check
Log into your online banking portal or mobile app. Most banks display your routing number in the account details or settings section. Some banks put it right on the account summary page; others hide it under a tab labeled "Account Information" or "Bank Details." If you cannot find it in the app, the website usually has a dedicated page for it.
You can also call your bank's customer service line. Have your account number ready, and they will give you the routing number in seconds. This is the fastest route if you need it when ready.
Some banks publish their routing numbers on their website in a searchable directory. A quick search for "[Your Bank Name] routing number" will often pull up an official page with the number listed.
Why you need it for direct deposit and transfers
When your employer sets up direct deposit to your savings account, they ask for your routing number and account number. The employer's payroll system uses the routing number to send the payment to the correct bank, then uses your account number to deposit it into your specific account.
The same applies when you set up automatic bill payments, transfer money between your own accounts at different banks, or receive a wire transfer from someone else. Any movement of money into your savings account requires the routing number so the sending institution knows where to direct it.
If you give the wrong routing number, the money goes to the wrong bank. It does not automatically bounce back—it may take days or weeks to trace and recover, depending on where it ended up.
Routing numbers are different from account numbers
Your account number is unique to you and identifies your specific savings account. Your routing number identifies the bank. You need both pieces of information together to move money.
Think of it this way: the routing number is like the address of a post office branch, and your account number is like your mailbox number at that branch. The postal worker needs both to know where to deliver your mail.
If you have multiple accounts at the same bank—a savings account and a checking account, for example—they share the same routing number but have different account numbers. If you move your savings account to a different bank, you get a new routing number but keep your account number (it is just a number the new bank assigns to you).
What happens if you use the wrong routing number
If you provide an incorrect routing number, the money does not go to your account. It goes to whatever bank that routing number belongs to. The receiving bank may reject it if the account number does not match any account in their system, or it may sit in a suspense account while the bank tries to figure out where it belongs.
Recovery can take one to three weeks. The sending institution has to trace the transaction, contact the receiving bank, and request a reversal. During that time, you do not have access to the money, and your bills or paycheck may be delayed.
Always double-check the routing number before you submit it to a new service—especially for direct deposit or automatic payments that will recur.
Routing numbers for online banks and credit unions
Online banks and credit unions have routing numbers just like traditional banks. If you have a savings account at an online bank like Ally or Marcus, that bank has its own routing number. Credit unions also have routing numbers, and they work the same way as bank routing numbers.
The process for finding your routing number is the same: check your online portal, call customer service, or look it up on the institution's website. Some online banks make it especially straightforward by displaying it prominently in the account settings.
Frequently Asked Questions
Do I need my routing number to check my savings account balance?
No. You only need your account number and password to log in and check your balance. The routing number is only required when money is moving into or out of the account.
Can I use the same routing number for checking and savings accounts at the same bank?
Yes. Both accounts at the same bank share the same routing number. The account number is what distinguishes one account from the other.
What if my bank merged with another bank—does my routing number change?
Sometimes. If the bank you use was acquired by another bank, the routing number may change. Your bank will notify you if this happens and will tell you the new routing number. Update it with any service that sends money to your account.
Is it safe to share my routing number?
Yes. Your routing number is not sensitive information—it is printed on every check you write and is public. Someone cannot withdraw money from your account with only the routing number; they would also need your account number and authorization. Never share your account number or online banking password.
Can I have more than one routing number for the same savings account?
No. Your savings account has one routing number, which is the routing number of the bank where it is held. If you move the account to a different bank, you get a new routing number.