The account number is the middle set of digits on the bottom of your check, between the routing number and the check number.
When you look at the bottom left of a check, you see three separate groups of numbers printed in magnetic ink. The first group (usually 9 digits) is your bank's routing number. The second group (usually 10 to 12 digits) is your account number. The third group, on the far right, is the check number—the sequential number printed in the upper right corner as well.
The account number identifies your specific account at that bank. It stays the same for every check you write from that account. You need this number when you set up direct deposit, arrange automatic payments, or give someone your banking details for a wire transfer.
The routing number, by contrast, identifies the bank or credit union itself. If you switch banks, your routing number changes but your account number format stays similar. The check number is just a tracker for that individual check and has no role in processing payments.
Key Takeaways
- Your account number is the middle set of digits at the bottom of your check, printed between the routing number on the left and the check number on the right.
- The routing number (first group) identifies your bank; the account number (second group) identifies your specific account; the check number (third group) tracks that individual check.
- 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.
- When you provide your account number to someone, always verify you are giving it to a trusted recipient, since it is needed to set up transfers or direct deposits.
Where else to find your account number if you don't have a check
Not everyone writes checks regularly, and you may need your account number without one in front of you. Your bank statement—whether paper or digital—displays your account number at the top or in a summary section. Log into your online banking portal and look for "Account Details" or "Account Information"; your account number appears there when ready.
Call your bank's customer service number on the back of your debit card or on your most recent statement. Have your ID ready. A representative can read your account number to you over the phone in under a minute. Some banks also text or email your account number if you request it through their app.
Why banks print the numbers in a specific order
The order—routing number, then account number, then check number—reflects how checks move through the banking system. When you write a check, it travels to the recipient's bank, which uses the routing number to find your bank, then uses the account number to find your account within that bank, then deducts the amount you wrote.
The magnetic ink character recognition (MICR) line at the bottom of the check is machine-readable. Automated sorting machines in the banking system scan these numbers in that exact order. The check number on the right is printed there for your own records and for the bank to track which checks have cleared.
What to do if you can't read the numbers clearly
Checks sometimes arrive with faded or smudged printing, especially if they have been handled roughly or stored in damp conditions. If the numbers at the bottom are hard to read, do not guess. Contact your bank directly and provide your name, address, and the last four digits of your Social Security number or your debit card number. They will confirm your account number and routing number.
If you are trying to read someone else's check number for a payment they sent you, ask them to provide the information directly rather than trying to decipher a faded check. This prevents errors and protects both of you.
The difference between your account number and your debit card number
Your debit card has its own 16-digit number printed on the front, which is separate from your account number. The card number is what you use to make purchases in stores or online. Your account number is what you use for bank-to-bank transfers, direct deposit setup, and bill payments.
Someone who has your debit card number cannot access your account number without additional information. Conversely, your account number alone does not let someone use your debit card. Both are sensitive, but they control different things. Protect both, but understand that they are not the same.
Sharing your account number safely
You may need to share your account number with your employer (for direct deposit), your landlord (for rent payment), a utility company (for automatic bill pay), or a financial institution (for a transfer). Before you share it, confirm you are communicating with the real organization—not a phishing email or fake website.
Call the organization using a phone number from their official website or a bill you received in the mail. Never click a link in an email asking for your account number. Legitimate companies already know how to reach you and do not ask for sensitive information via email. Once you have confirmed you are speaking to the right place, providing your account number and routing number is safe for these standard transactions.
Frequently Asked Questions
Is my account number the same as my routing number?
No. Your routing number identifies your bank (the same for all customers at that bank). Your account number identifies your specific account within that bank. Both appear on your check, but in different positions.
Can someone withdraw money from my account if they have my account number?
Not without additional information. Your account number alone is not enough to initiate a withdrawal. They would also need your routing number, and even then, most transfers require verification through your bank. However, treat your account number as sensitive information and share it only with trusted recipients.
What if I give my account number to the wrong person by mistake?
Contact your bank when ready and explain what happened. They can monitor your account for suspicious activity and, if needed, issue you a new account number and reissue checks. The sooner you report it, the faster they can protect your account.
Do I need both my routing number and account number to receive a direct deposit?
Yes. Your employer or the organization sending the deposit needs both numbers to route the money to the correct bank and the correct account within that bank. Your check has both printed at the bottom.
Will my account number change if I close my account and reopen one?
Usually yes. When you close an account, that account number is retired. If you open a new account at the same bank, you receive a new account number. Any automatic payments or direct deposits set up with the old number will fail, so you need to update them with your new account number.