The account number is the second set of digits on the bottom of your check, printed between the routing number and the check number
Look at the bottom left of any check. You will see three separate groups of numbers printed in magnetic ink. The first group (usually nine digits) is your routing number. The second group is your account number. The third, smaller group on the right is your check number. The account number is typically 10 to 12 digits long, though this varies by bank.
The account number identifies your specific checking account at your bank. When you write a check or set up a direct deposit, the routing number tells the banking system which bank to use, and the account number tells it which account within that bank. Without the account number, the payment has nowhere to land.
You can also find your account number on your bank statement, in your online banking portal, or by calling your bank's customer service line. The check is straightforward the most portable place to find it if you do not have those other documents handy.
Key Takeaways
- The account number is the middle set of digits on the bottom of your check, positioned between the routing number and the check number.
- Account numbers are typically 10 to 12 digits long, though the exact length depends on your bank.
- You can locate your account number on your bank statement, in your online banking portal, or by contacting your bank directly.
- Both the routing number and account number are required for direct deposits, wire transfers, and other electronic payments to work correctly.
How the three numbers work together
The routing number, account number, and check number form a complete address for your money. Think of it like a mailing address: the routing number is the city and state, the account number is the street address, and the check number is the specific letter you are sending.
When someone deposits or cashes your check, the bank reads all three numbers. The routing number directs the payment to your bank. The account number directs it to your account. The check number is a record-keeping tool that helps both you and your bank track which specific check this payment came from.
If you write down only the routing number or only the account number, the payment will fail. Both must be correct and in the right order for the transaction to go through.
What the account number looks like on different check styles
Most checks follow the same layout, but the exact appearance can vary slightly. On a standard personal check, the account number appears in the second position at the bottom, printed in the same magnetic ink as the routing number. On business checks, the layout is identical. On cashier's checks or certified checks issued by the bank itself, the account number may not appear at all, since these checks are drawn on the bank's own account rather than yours.
If you have checks from multiple accounts at the same bank, each will have a different account number. The routing number will be the same, but the account number will change. This is how the bank knows which account to pull the money from.
Finding your account number if you cannot read the check
If your check is worn, faded, or damaged and you cannot read the account number clearly, your bank statement will have it. Log into your online banking portal and look for your account details or account summary page—the account number is always listed there. You can also call your bank's customer service number (usually on the back of your debit card) and provide your name and routing number; they will read your account number to you over the phone.
Do not guess at the account number or try to fill in missing digits. If even one digit is wrong, the payment will be rejected or sent to the wrong account. It is always worth taking the extra minute to find the correct number.
When you need to share your account number safely
You will need to provide your account number when you set up direct deposit for payroll, arrange automatic bill payments, or receive wire transfers. You may also need it to transfer money between your own accounts at different banks.
Sharing your account number with a legitimate business or employer is safe. The account number alone cannot be used to withdraw money from your account—a thief would also need your routing number, and even then, they would need authorization from you or a court order. However, do not share your account number with anyone you do not trust, and never share it in response to an unsolicited email or phone call claiming to be from your bank. Real banks never ask for account numbers by email or phone.
Frequently Asked Questions
Is the account number the same as the number on my debit card?
No. Your debit card number is different from your account number. The account number is what appears on your checks and is used for direct deposits and transfers. Your debit card number is a separate identifier used for card transactions. You can have the same account number for decades, but your debit card number changes every time you get a new card.
Can someone steal money using just my account number?
Not easily. A thief would need both your routing number and account number to attempt an unauthorized transfer, and most banks require additional verification before processing transfers from new recipients. If someone does attempt fraud using your account number, your bank's fraud protection covers unauthorized transfers, though you may need to report it within a specific timeframe.
What if my check does not have an account number printed on it?
This is unusual but can happen with certain specialty checks or if the check was printed incorrectly. Contact your bank when ready. They can reorder checks with the correct information or provide your account number so you can complete the transaction you need.
Do I need to memorize my account number?
No. You can look it up on a check, your bank statement, or your online banking portal whenever you need it. Most people do not memorize it. Keep a record in a safe place, but there is no need to carry it in your head.