Your account number is printed on the bottom left of your checks, in your online banking portal, and on statements mailed by your bank

The account number is an eight to twelve digit code that identifies your specific deposit account at your bank. It appears in three places you can access right now: the bottom of any check you have, your bank's website or mobile app under account details, and any paper statement your bank has sent you. The number is unique to that one account — if you have a savings account and a checking account at the same bank, each has its own account number.

You need this number when you set up direct deposit, arrange a wire transfer, or give someone permission to send you money. It is not the same as your routing number, which identifies the bank itself rather than your account within it. Both numbers sit together at the bottom of a check, but they are different pieces of information.

Key Takeaways

  • Your account number appears on the bottom left of any check, after the routing number and before the check number.
  • You can find it in your bank's online portal or mobile app under account information or account details.
  • Paper statements from your bank print the account number near the top or in the account summary section.
  • The account number is eight to twelve digits and is unique to that one account at that one bank.
  • You need both the routing number and account number together to receive direct deposit or wire transfers.

Reading the bottom of a check

The bottom of a check displays three separate numbers in this order: routing number, account number, check number. The account number is in the middle. It is usually eight to twelve digits long and appears after a colon or space following the nine-digit routing number.

If you do not have a checkbook or your checks are very old, the number may be harder to read. The routing number comes first on the left, the account number follows it in the center, and the check number appears on the right. If you are unsure which is which, call your bank's customer service line — they can confirm the account number over the phone by verifying your identity.

Finding it in online banking

Log into your bank's website or mobile app and look for a section labeled "Account Information," "Account Details," or "My Accounts." Most banks display the account number prominently on the main dashboard or in a dropdown menu next to your account name. Some banks show the full number; others mask it and display only the last four digits for security, with an option to reveal the full number.

If you cannot find it in the obvious places, look for a link that says "View Account Details" or "Account Summary." You may also find it under a "Transfers" or "Direct Deposit" section, since those features require the account number. If your bank's app does not show it clearly, the website version usually does.

Checking your bank statements

Paper statements mailed by your bank print your account number near the top of the first page, usually in a section labeled "Account Information" or "Account Summary." It may also appear in the upper right corner next to your account name. Digital statements you read or view online show it in the same location.

If you have statements from the past year, any of them will have the number. You do not need the most recent one — the account number does not change unless you close and reopen the account.

What to do if you cannot find it

Call your bank's customer service number on the back of your debit card or on your most recent statement. Have your Social Security number and a form of ID ready. The representative will verify your identity and read the account number to you over the phone. This takes a few minutes and is the fastest way if you need the number when ready.

You can also visit a branch in person with your ID and ask a teller to write down your account number. Some banks will email it to you if you request it through your online portal's find messaging system, though this usually takes one business day.

Keeping your account number safe

Your account number is not a secret in the way a password is — it appears on every check you write and on statements you may share with accountants or employers. However, you should not post it publicly or share it with anyone you do not trust. Combined with your routing number, it allows someone to set up transfers from your account.

If you suspect someone has your account number and you did not authorize a transfer, contact your bank when ready. Most banks can reverse unauthorized transfers within a certain window, and federal law limits your liability if you report the fraud quickly.

Frequently Asked Questions

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

No. Your debit card number is a separate sixteen-digit number printed on the front of the card. Your account number is eight to twelve digits and identifies your bank account. They are different numbers used for different purposes.

Can someone withdraw money if they have only my account number?

They cannot withdraw cash, but they can set up a transfer or direct debit if they also have your routing number. This is why you should not share both numbers with someone you do not trust. If an unauthorized transfer occurs, contact your bank right away.

Do I need my account number to use an ATM?

No. You use your debit card and PIN at an ATM. Your account number is needed for transfers, direct deposit, and wire transfers — not for everyday ATM withdrawals.

What if I have multiple accounts at the same bank?

Each account has its own unique account number. If you have a checking account and a savings account, they will have different numbers. Your online banking portal shows all your accounts with their separate numbers listed.

Will my account number change if I close and reopen my account?

Yes. If you close an account and open a new one later, you will receive a new account number. The old number is no longer active. Make sure anyone sending you direct deposit knows your new account number.