Your account number appears on checks, statements, and your bank's website
Your bank account number is a string of digits that identifies your specific account at your bank. It is different from your routing number, which identifies the bank itself. You can find your account number in at least four places without calling your bank or visiting a branch.
The fastest route is usually your online banking portal or mobile app — log in and look for account details, account information, or account summary. Most banks display the full number or the last four digits prominently on the dashboard. If you do not have online access set up, a paper check from your checkbook or a recent bank statement will show it just as quickly.
Key Takeaways
- Your account number appears on the bottom left of personal checks, after the routing number and before the check number.
- Bank statements — whether paper or digital — display your account number in the account information section, usually near the top.
- Your bank's website or mobile app shows your account number when you log in and view account details.
- You can call your bank's customer service line and provide your name and Social Security number to confirm your account number over the phone.
- Some banks print your account number on debit cards or statements, while others show only the last four digits for security.
Finding it on a check
If you have a checkbook, the easiest place to look is the bottom of any check. You will see three groups of numbers printed in magnetic ink: the routing number on the left (usually nine digits), your account number in the middle (typically eight to twelve digits), and the check number on the right.
The account number is the longest group in the middle. Write it down exactly as it appears, including any leading zeros. Some people miss this because they expect the numbers to be separated by spaces or dashes, but they run together in one continuous string.
Finding it on a bank statement
Paper statements and digital statements both display your account number near the top, usually in a section labeled "Account Information" or "Account Details." It may appear next to your account type (checking, savings, money market) and your current balance.
If you receive statements by mail, look at the first page. If you receive digital statements through your bank's website or email, open the PDF or statement view and scroll to the top. The account number is almost always printed or displayed before the transaction history begins.
Finding it online or in your mobile app
Log into your bank's website or open the mobile app and navigate to your account dashboard or home screen. Most banks display a summary of each account you hold, with the account number visible or clickable. 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 full number.
If you see only the last four digits, look for a link or button labeled "View full account number," "Account details," or "More information." You may need to verify your identity again before the full number displays. This extra step is a security measure to prevent unauthorized access if someone else gains access to your phone or computer.
Finding it by calling your bank
If you cannot access checks, statements, or online banking, 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 name, date of birth, and Social Security number ready. The representative will verify your identity and read your account number to you over the phone.
This method takes longer than the others but works if you have lost your checks and do not have online access. Some banks also allow you to confirm your account number through their automated phone system after you enter your PIN or answer security questions.
What to do if you cannot find it
If you have tried the methods above and still cannot locate your account number, visit your bank in person with a photo ID. A teller can print your account information or write it down for you on the spot. This is rare — most people find their account number within seconds using one of the methods above — but it is always an option if nothing else works.
Do not share your account number with anyone you do not trust. Scammers sometimes call or email claiming to be from your bank and ask for your account number as part of a "verification" process. Your bank already has your account number and will never ask you to provide it unsolicited.
Account number vs. routing number: what is the difference
Your routing number identifies your bank or credit union — the same routing number is used by all customers at that institution. Your account number identifies your specific account within that bank. Together, they tell the banking system exactly where your money is.
When you set up direct deposit, make a wire transfer, or authorize an ACH payment, you will need both numbers. The routing number tells the sending bank which institution to send money to; the account number tells that institution which account to deposit it into. If you provide the correct routing number but the wrong account number, the money will go to someone else's account at your bank.
Frequently Asked Questions
Is it safe to write down my account number?
Yes, writing down your account number is safe. Your account number alone cannot be used to withdraw money or make purchases — a thief would also need your routing number, PIN, or online banking password. Store the written number in a secure place, like a locked drawer or safe, just as you would a Social Security card.
Can I change my account number?
Most banks do not allow you to change your account number yourself. If you are concerned about fraud or identity theft, contact your bank directly. They can close the compromised account and open a new one with a different account number, though this process takes a few days and may affect automatic payments or direct deposits you have set up.
What if my account number has letters in it?
Bank account numbers are almost always digits only. If you see letters, you may be looking at a different identifier — such as a reference number, confirmation code, or account nickname. Double-check that you are reading the line labeled "Account Number" and not another field nearby.
Do I need my account number to log into online banking?
No. You log into online banking using your username and password, or through biometric authentication like fingerprint or face recognition. Your account number is not used as a login credential. You only need your account number when you are setting up direct deposit, receiving wire transfers, or authorizing payments to or from your account.
Will my account number change if I switch banks?
Yes. Each bank assigns its own account numbers to its customers. When you open a new account at a different bank, you receive a new account number. If you move money from one bank to another, you will need to update your account number with any employer, service provider, or person who sends you regular payments.