Your routing number is printed on the bottom left of your checks, or you can find it on your bank's website or by calling customer service

A routing number is a nine-digit code that identifies which bank or credit union holds your account. When you send money to someone else's account—through direct deposit, wire transfer, or ACH payment—that number tells the financial system where to send it. You need it for payroll setup, bill payments, and transfers between banks.

The fastest way to find yours depends on what you have access to right now. If you have a checkbook, look at the bottom left corner of any check. The first set of numbers is your routing number. If you don't have checks or prefer not to handle them, your bank's website usually lists it in the account details section, often labeled "Routing Number" or "ABA Number." You can also call your bank's customer service line—they can confirm it in under a minute.

Key Takeaways

  • Your routing number appears on the bottom left of your checks as the first set of nine digits.
  • Your bank's website typically displays your routing number in the account information or settings section.
  • Calling your bank's customer service line is the fastest way to confirm your routing number if you don't have checks or online access.
  • The routing number is specific to your bank or branch, not to your individual account—all customers at the same bank usually share the same routing number.
  • You will need your routing number and account number together for wire transfers, direct deposit setup, and ACH payments.

Finding it on your checks

If you have a checkbook, your routing number is always in the same place: the bottom left corner of the check. You'll see three separate groups of numbers printed in magnetic ink. The first group—always nine digits—is your routing number. The second group is your account number. The third is the check number itself.

This works for any check from your account, whether it's a personal check, business check, or cashier's check from that bank. The routing number never changes as long as you keep the account at the same bank. If you switch banks, your new bank will have a different routing number.

Finding it online through your bank

Most banks display your routing number in the account details section of their website or mobile app. Log in to your online banking portal and look for a section called "Account Information," "Account Details," "Routing Number," or sometimes "Bank Information." Some banks label it as "ABA Number" instead—ABA stands for American Bankers Association, the organization that assigns routing numbers.

If you can't find it in the obvious places, check the FAQ or Help section of your bank's website. You can also search the bank's site for "routing number" to pull up the page directly. The information is public—banks post it because customers need it regularly for payroll and bill payments.

Calling your bank to confirm

If you don't have checks and can't access online banking, call your bank's customer service number. This is usually on the back of your debit card or on your bank statements. Tell them you need your routing number, and they'll give it to you when ready. They may ask you to verify your identity with your account number or Social Security number first.

This method is reliable and takes less than a minute. You don't need an appointment or to visit a branch. If you're calling during business hours, you'll reach someone quickly. Some banks also have automated phone systems that let you look up your routing number without speaking to a person.

Understanding routing numbers vs. account numbers

A routing number identifies your bank. An account number identifies your specific account within that bank. Think of the routing number as the bank's address and the account number as your mailbox inside that building. You need both together for most transfers and payments.

All customers at the same bank branch typically share the same routing number. Your account number, by contrast, is unique to you. When you move money between your own accounts at different banks, you'll use one routing number for the sending bank and a different routing number for the receiving bank, along with the correct account number for each.

What to do if you can't find your routing number

If you've checked your checks, looked online, and can't reach customer service, you have other options. The Federal Reserve maintains a database of routing numbers searchable by bank name and state. You can also use the ABA's routing number lookup tool on their website—enter your bank name and state, and it will return the routing number.

Keep in mind that some banks have multiple routing numbers depending on which branch or service you use. If you're setting up direct deposit for payroll, ask your employer's payroll department which routing number they need—they may have a list of accepted numbers for your bank. If you're making a wire transfer, confirm with the receiving bank that you have the correct routing number for where the money is going, not just where it's coming from.

Frequently Asked Questions

Is my routing number the same as my bank's main routing number?

Usually yes, but not always. Most banks use one routing number for all their branches and services. However, some large banks have multiple routing numbers for different regions or service types. If you're unsure, use the number from your checks or your online account details—that's the one tied to your specific account.

Can I use someone else's routing number to send them money?

Yes. When you send money to another person's account, you use their bank's routing number and their account number. You don't need their permission to look up or use their routing number—it's public information. The routing number just directs the money to the right bank; the account number makes sure it goes to the right person within that bank.

What if my bank merged with another bank?

Your routing number may change after a merger, or it may stay the same depending on how the banks consolidated their systems. Check your most recent statement or log into online banking to see your current routing number. If you're not sure whether it changed, call customer service or look at a recent check.

Do I need a routing number to use my debit card?

No. You only need a routing number when money is being transferred between bank accounts—for direct deposit, wire transfers, ACH payments, or setting up automatic bill pay. Swiping your debit card at a store or ATM doesn't require it.

Is it safe to share my routing number?

Yes. Your routing number is public information and is printed on every check you write. Someone cannot withdraw money from your account using only your routing number—they also need your account number, and even then, most transfers require additional verification. Never share your full account number or PIN with anyone you don't trust, but the routing number alone is safe to give out.