Your account number is printed on the bottom left of your checks, in your bank's mobile app, and on statements your bank mails or emails you

The easiest place to look is the bottom of a check from your checking account. The account number appears after the routing number and before the check number. If you do not have checks, open your bank's mobile app or log into your online banking portal — your account number is usually visible on the main dashboard or in an account details section. You can also call your bank's customer service line, and they will read it to you after you verify your identity.

If you have not received a statement in a while, ask your bank to email or mail you one. Statements show your full account number at the top or in a summary section. Some banks also print it on debit cards, though usually only the last four digits appear for security reasons.

Key Takeaways

  • Your account number is on the bottom left of any check you have, right after the routing number.
  • Log into your bank's website or app to see your account number on the main account page or in account details.
  • Call your bank's customer service number on the back of your debit card and ask them to read your account number after you verify who you are.
  • Request a bank statement by email or mail if you need a written record with your account number printed on it.

Finding it in your bank's app or online portal

Most banks display your account number prominently when you log in. Look for a section labeled "Account Details," "Account Information," or "My Accounts." The number is usually shown in full, though some banks mask part of it for security on shared devices. If you cannot find it on the main page, check under settings or account management.

If your bank uses a mobile app, the account number often appears on the home screen or in a dropdown menu showing all your accounts. Tap the account you want information about, and the full number should display. Some apps let you copy the number to your clipboard without writing it down.

Calling your bank to get your account number

The fastest way if you are away from your checks or computer is to call the number on the back of your debit card. Have your card and a form of ID ready. The bank will ask you to confirm your identity — usually your full name, date of birth, and the last four digits of your Social Security number or a recent transaction amount.

Once verified, the representative will read your account number to you. Write it down or ask them to email it to the address on file. Some banks will also text it to a phone number they have registered for your account, which is safer than reading it aloud in a public place.

Reading your account number from a check

Look at the bottom of any check. You will see three groups of numbers separated by colons or vertical lines. The first group is your routing number (nine digits). The second group is your account number (usually 10 to 12 digits). The third group is the check number.

Not all checks show the full account number — some print only the last four digits for security. If your checks are masked this way, use your bank app, statement, or call your bank instead. The account number on a check is always the same, so if you have one check from that account, the number on it applies to all transactions from that account.

What to do if you cannot find your account number

If you have no checks, no access to online banking, and cannot call your bank during business hours, visit a branch in person. Bring a photo ID and ask a teller for your account number. They can print it for you or write it on a piece of paper. Some banks also send account numbers by mail if you request it, though this takes several days.

If you are locked out of your online account, call the bank's customer service line and explain that you cannot log in. They will verify your identity through other means — such as asking security questions or confirming recent transactions — and then provide your account number. Do not share your account number with anyone who calls you claiming to be from your bank; legitimate banks never ask you to confirm it over the phone.

Why you need your account number and where to use it

Your account number is required for direct deposits (like paychecks or government payments), wire transfers, setting up automatic bill payments, and giving your bank details to employers or other organizations. It is also needed when you contact your bank about a specific transaction or account issue.

Your account number alone is not enough for someone to steal from your account — they also need your routing number and usually some form of verification. However, do not share it unnecessarily. Only provide it to people and organizations you trust, and never respond to unsolicited calls or emails asking for it.

Frequently Asked Questions

Is my account number the same as my debit card number?

No. Your debit card number is the 16-digit number on the front of your card. Your account number is separate and appears on checks and in your bank account details. They are linked to the same account, but they are different numbers.

Can someone access my account with just my account number?

Not easily. Your account number alone does not give someone access to your money. They would also need your routing number, and most banks require additional verification like a password or security questions. However, do not share your account number with people you do not trust.

What if I have multiple accounts at the same bank?

Each account has its own account number. If you have a checking account and a savings account, they will have different numbers. When you log into your bank's app or online portal, you can see all your accounts listed separately, each with its own number.

Do I need my account number to use my debit card at a store?

No. You only need your debit card and PIN to make purchases or withdraw cash. Your account number is used for transfers, direct deposits, and bill payments — not for everyday card transactions.