Your account number is the second set of digits printed on the bottom left of your check, between the routing number and the check number
When you look at the bottom of a check, you'll see three groups of numbers printed in magnetic ink. The first group is your bank's routing number. The second group — usually 10 to 12 digits long — is your account number. The third, much shorter group on the far right is the check number itself.
Your account number identifies your specific deposit account at your bank. It's unique to you and stays the same for as long as you hold that account. Banks use it to know which account to pull money from when a check clears, and it's the number you'll need when setting up direct deposit, wire transfers, or automatic payments.
The account number appears on every check you have from that account. If you have multiple accounts at the same bank — a checking account and a savings account, for example — each one has its own account number, and your checks will reflect whichever account they're drawn from.
Key Takeaways
- Your 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 and are printed in magnetic ink at the bottom left of the check.
- Each account you hold at a bank has its own unique account number, so checking and savings accounts will have different numbers.
- You'll need your account number when setting up direct deposit, authorizing automatic payments, or receiving wire transfers.
- If you can't locate your account number on a check, you can find it on your bank statement, online banking portal, or by calling your bank.
How to read the three number groups on your check
The magnetic ink line at the bottom of a check always follows the same order: routing number, account number, check number. Learning to spot each one takes only a moment.
The routing number comes first on the left — it's nine digits and identifies your specific bank branch. Next is your account number, which is longer (usually 10 to 12 digits) and identifies your account within that bank. On the far right is your check number, which is the shortest of the three and simply labels which check in your book this is.
Some checks also print these numbers in regular type above the magnetic ink line, making them easier to read. If your check has both printed and magnetic versions, they should match. If they don't, contact your bank — it may indicate a printing error.
Where else to find your account number
You don't need a check to locate your account number. Your bank provides it in multiple places, and you can retrieve it within minutes.
Your bank statement — whether paper or electronic — displays your account number at the top or in the account information section. If you receive statements by mail, look at the first page. If you use online banking, log in and navigate to your account details or account summary page; the account number is usually listed there prominently.
You can also call your bank's customer service line and provide your name and identifying information. A representative can read your account number to you over the phone. Some banks also display it on your debit card, though not all do — check the front or back of your card.
Why you need your account number for refunds and payments
When money is being sent to your bank account — whether it's a tax refund, insurance reimbursement, or a direct deposit paycheck — the sending organization needs your account number to route the funds correctly. Without it, the payment can't reach you.
For direct deposit, your employer or the organization sending the payment will ask for both your routing number and account number. These two pieces of information together tell the banking system exactly where to deposit the money. If you provide the wrong account number, the deposit may go to someone else's account or be rejected entirely.
When you're receiving a refund by bank transfer rather than by check or debit card, having your account number ready speeds up the process. Some refund programs ask you to provide it when you request the refund; others ask for it later. Either way, having it on hand prevents delays.
What to do if your account number doesn't match your records
If the account number on your check doesn't match the number on your bank statement or online portal, stop and contact your bank before using either number for a refund or payment.
A mismatch usually means a printing error on your checks — the bank printed the wrong account number when your checks were made. This happens occasionally and is fixable, but you need to report it so your bank can correct it. Call the customer service number on the back of your debit card or on your statement, explain the discrepancy, and ask which number is correct for your account.
Your bank may issue you new checks with the correct account number printed on them. In the meantime, use the account number from your statement or online banking for any refunds or payments, since those sources pull directly from your bank's records and are more reliable than printed checks.
Account numbers and privacy
Your account number is sensitive information — it's part of what someone would need to transfer money out of your account or set up unauthorized payments. Don't share it with anyone you don't trust, and be cautious about where you type it.
When you provide your account number online, make sure you're on a secure website (the address should start with "https://" and show a lock icon). When you provide it over the phone, verify that you called the organization — don't use a phone number from an email or text message, as those could be fraudulent.
If you believe your account number has been compromised, contact your bank immediately. They can monitor your account for suspicious activity and, if necessary, close the account and issue you a new one with a different account number.
Frequently Asked Questions
Is my account number the same as my routing number?
No. Your routing number identifies your bank or bank branch — it's the same for all customers at that location. Your account number identifies your specific account within that bank. You need both numbers together for direct deposit or wire transfers.
Can I use my account number without my routing number?
No. Routing and account numbers work as a pair. The routing number tells the banking system which bank to send the money to; the account number tells it which account within that bank. You must provide both for any electronic transfer.
What if I don't have any checks?
You can find your account number on your bank statement, in your online banking portal, on your debit card (if your bank prints it there), or by calling your bank's customer service line. You don't need a physical check to locate it.
Does my account number change if I close and reopen an account?
Yes. When you close an account and open a new one, even at the same bank, you receive a new account number. Any direct deposits or automatic payments set up under the old account number will need to be updated to the new number.
Can someone access my account with just my account number?
Not easily. Your account number alone is not enough to transfer money or make withdrawals — most transactions also require your routing number, a PIN, a password, or other verification. However, treat your account number as sensitive information and don't share it unnecessarily.