Your checking account number is printed on the bottom left of your checks, or you can find it in your bank's app or website

The easiest place to look is the bottom of a check you have at home. Three sets of numbers run along the bottom edge: the routing number on the far left, your account number in the middle, and the check number on the right. The account number is usually 10 to 12 digits long, though the exact length varies by bank.

If you don't have checks handy, you can find your account number in seconds through your bank's online banking portal or mobile app. Log in, go to your account details or account summary page, and the number will be listed there. Some banks label it "Account Number" or "Checking Account Number"—others call it "DDA Number" (which stands for Demand Deposit Account, the formal name for a checking account).

You can also call your bank's customer service line or visit a branch in person and ask. Have your ID ready, because the bank will verify who you are before sharing account information over the phone.

Key Takeaways

  • Your account number appears on the bottom left of any check you have, printed as the middle set of numbers between the routing number and check number.
  • You can view your account number when ready by logging into your bank's website or mobile app and navigating to your account details.
  • If you need it urgently and don't have checks or online access, call your bank's customer service line with your ID ready for verification.
  • The account number is unique to your specific checking account and is different from your routing number, which is the same for all customers at your bank.

Finding it on a check

Look at the bottom edge of any check. You'll see three groups of numbers printed in a special magnetic ink. Reading from left to right, the first group is your bank's routing number, the second group is your account number, and the third is the check number itself.

The account number is usually between 10 and 12 digits, though some banks use longer or shorter numbers. It's printed in the same magnetic ink as the routing number because both pieces of information are read by machines when checks are processed.

If your checks are old or the ink has faded, the numbers may be hard to read. In that case, move to one of the other methods below.

Finding it online or in your bank's app

Log into your bank's website or open the mobile app on your phone. Look for a section labeled "Account Details," "Account Information," "My Accounts," or "Account Summary"—the exact wording depends on your bank.

Once you're there, your account number will be displayed alongside other information like your current balance and recent transactions. Some banks show the full number; others show only the last four digits for security and require you to click or tap to reveal the complete number.

This method works even if you've never received checks or if your checks are at home and you need the number right now. It's also the safest way to find it, because you're accessing your own find account rather than handling a physical check.

Calling your bank or visiting a branch

If you can't access your checks or your online account, you can call your bank's customer service number—usually printed on the back of your debit card or found on the bank's website. Have your government-issued ID ready, because the bank will ask you to verify your identity before sharing your account number over the phone.

You can also walk into any branch of your bank during business hours and ask a teller for your account number. Bring your ID with you. This is often the fastest option if you need the number when ready and you live near a branch.

Why you need your account number

Your account number is required for direct deposits (like paychecks or tax refunds), wire transfers, setting up automatic bill payments, and giving your employer or other organizations permission to move money in or out of your account. It's also what distinguishes your account from every other checking account at the same bank—your routing number is the same for all customers, but your account number is unique to you.

You should keep your account number in a safe place, but it's less sensitive than your PIN or online banking password. Many people write it down or take a photo of a check for their records. If you're concerned about security, you can always generate a new account number by closing the account and opening a new one, though this is rarely necessary.

What to do if you can't find it

If you've looked at your checks, checked your online account, and can't reach your bank by phone, you have one more option: visit a branch in person with your ID. A teller can look up your account number in seconds and write it down for you.

If you've lost access to your account entirely—for example, you've forgotten your online banking password and don't have a phone number on file—the bank will walk you through identity verification steps to regain access. This usually involves answering security questions or providing documents like a recent utility bill or driver's license.

Frequently Asked Questions

Is my account number the same as my routing number?

No. Your routing number identifies your bank and is the same for all customers there. Your account number identifies your specific checking account and is unique to you. Both appear on the bottom of your checks, with the routing number on the left and the account number in the middle.

Can I share my account number with anyone?

Yes, it's safe to share your account number with people who need it to send you money—like your employer for direct deposit or a company setting up a bill payment. It's not a secret like your PIN or password. However, don't share it with people you don't trust, because they could potentially withdraw money if they also have your routing number and bank name.

What if the numbers on my check are smudged or faded?

Use your online banking portal or mobile app instead—the account number will be clearly displayed there. If you don't have online access, call your bank or visit a branch. You don't need to order new checks just to read your account number.

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

No. Your debit card works with a card number printed on the front, not your account number. However, you will need your account number if you want to set up direct deposit, automatic bill payments, or wire transfers.