The routing number is the nine-digit code printed at the bottom left of your check, before your account number

The routing number appears in the lower left corner of every check you receive from your bank. It is always nine digits long and sits to the left of your account number. The routing number identifies which bank or credit union issued the check, and it is used whenever money needs to move between financial institutions — for direct deposits, bill payments, wire transfers, and ACH transactions.

You do not need to memorize it or write it down separately. Whenever you need your routing number, you can pull out any check from your current account and look at the bottom left. The format is always the same, and the number never changes as long as you keep an account at that bank.

Key Takeaways

  • Your routing number is the nine-digit code at the bottom left of your check, printed before your account number.
  • The routing number identifies your specific bank or credit union and is used for transfers between financial institutions.
  • If you do not have a check handy, you can find your routing number on your bank's website, in your online banking portal, or by calling customer service.
  • The routing number is different from your account number — the account number comes after the routing number on the check.

How to read the numbers at the bottom of a check

The bottom of a check contains three separate pieces of information printed in magnetic ink, read from left to right. The first nine digits are your routing number. Immediately after that comes your account number, which is typically 10 to 12 digits. At the far right is the check number itself.

The routing number always comes first because it tells the banking system which institution to send the money to. The account number tells that institution which specific account within the bank should receive or send the funds. If you are setting up a direct deposit or authorizing an automatic payment, you will need both numbers — the routing number and the account number — but the routing number is the one that appears first on the check.

What the routing number tells you

The routing number is assigned by the Federal Reserve and is specific to each bank branch or banking institution. If you have accounts at two different banks, each account will have a different routing number. If you have multiple accounts at the same bank, they will share the same routing number.

The routing number does not change when you move to a different branch of the same bank, and it does not change if you switch from a checking account to a savings account at the same institution. It is tied to the bank itself, not to your individual account or branch location.

Finding your routing number without a check

If you do not have a check available, your bank provides your routing number in several other places. Log into your online banking account and look for account details or account information — most banks display the routing number prominently on that page. You can also call your bank's customer service line; they will confirm your routing number over the phone once they verify your identity.

Your bank's website usually has a routing number lookup tool as well. Search for "[Your Bank Name] routing number" and you will find a page where you can enter your location or account type to retrieve the correct number. Credit unions work the same way — your routing number is available through your online portal or by calling the credit union directly.

Routing number versus account number

These two numbers serve different purposes and appear in different positions on your check. The routing number (nine digits, on the left) identifies the bank. The account number (typically 10 to 12 digits, in the middle) identifies your specific account within that bank. When you set up direct deposit or authorize a payment, you need both numbers, but they are not interchangeable.

Confusing the two will cause a transfer to fail or go to the wrong account. If you are unsure which number is which, remember: routing number first, account number second, check number last. The order on the check is the order they appear in the banking system.

When you need to provide your routing number

Your employer or a government agency will ask for your routing number when setting up direct deposit for paychecks, tax refunds, or benefit payments. Creditors and service providers ask for it when you authorize automatic bill payments from your bank account. If you are receiving a wire transfer or an ACH transfer from another person or organization, they will need your routing number to send the money to the correct bank.

You may also need your routing number when opening a new account at a different bank and transferring funds from your old account. In all these cases, having a check on hand makes it simple — you can read both numbers directly from the bottom of the check and provide them with confidence.

Frequently Asked Questions

Is the routing number the same for all branches of my bank?

Yes. The routing number identifies the bank itself, not a specific branch. All branches of the same bank share the same routing number. If you move or switch to a different branch, your routing number stays the same.

Can I use the routing number from an old check?

Yes, as long as the check is from the same bank and account. The routing number does not change. Old checks are safe to reference for this information, though you should not use the check number itself for any new transactions.

What if I cannot find the routing number on my check?

Check the bottom left corner again — it should be the first nine digits printed in magnetic ink. If the check is damaged or the numbers are unclear, contact your bank directly or log into your online banking account to find the routing number listed under account details.

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

No. Your debit card does not require a routing number. You only need the routing number when money is moving between banks or institutions, such as for direct deposit, bill payments, or transfers. Swiping your debit card at a store does not involve your routing number.