Your account number is printed on the bottom left of every check you write, and also appears on your bank statement and online banking portal.
The account number is a string of digits unique to your checking account. It sits right next to your routing number on a check, separated by a colon or space. If you have checks in front of you, look at the bottom left corner — you'll see three groups of numbers. The first is your routing number (nine digits), the second is your account number (usually 10 to 12 digits), and the third is the check number itself.
You don't need a physical check to find this number. Your bank statement, your online banking dashboard, and your debit card all display it. If you've misplaced your checks and can't access your account online, a phone call to your bank's customer service line will get you the number in under a minute.
Key Takeaways
- Your account number appears on the bottom left of every check, printed between your routing number and the check number.
- Bank statements, online banking portals, and mobile apps all show your account number without requiring you to write a check.
- If you can't locate it anywhere else, call your bank's customer service number on the back of your debit card or on your most recent statement.
- Your account number is specific to one account at one bank — if you have multiple checking accounts, each has its own number.
Finding it on a paper check
Open your checkbook and look at the bottom of any check. You'll see three separate groups of numbers printed in magnetic ink. The leftmost group is your nine-digit routing number. Immediately to the right of that is your account number. The rightmost group is the individual check number.
The account number is usually 10 to 12 digits long, though this varies by bank. Some banks print it with spaces or dashes between groups of digits for readability, but the spaces are just formatting — the actual number is continuous.
Finding it on your bank statement
Every bank statement — whether you receive it by mail or download it online — displays your account number near the top. Look for a line that says "Account Number" or "Acct #" followed by the digits. On paper statements, this is usually in the upper right corner or in a box with your account details. On digital statements, it's typically at the top of the document.
Your statement also lists your routing number on the same section, so if you need both numbers at once, your statement is the fastest place to find them together.
Finding it in online banking or your mobile app
Log into your bank's website or open the mobile app and navigate to your account details or account summary page. Most banks display your account number prominently on the main dashboard or in a section labeled "Account Information." Some apps require you to tap a menu or settings icon to see it.
If you can't find it in the obvious places, look for a link that says "Account Details," "View Account Number," or "Account Settings." The exact location varies by bank, but it's always there — banks know customers need this number regularly.
Calling your bank to get the number
If you have no checks, can't access your online account, and don't have a recent statement, call the customer service number on the back of your debit card or on any piece of mail from your bank. Have your Social Security number and a form of ID ready. A representative will verify your identity and read your account number to you over the phone.
This takes about five minutes. You don't need an appointment, and there's no charge. Banks handle this request dozens of times a day.
Why you need this number and where it goes
Your account number is required for direct deposit, wire transfers, setting up automatic bill payments, and providing banking details to employers or other organizations. It's not a secret — you give it out whenever you set up a payment or receive a deposit. It's printed on every check you write, so anyone who receives a check from you sees it.
When you provide your account number to someone, always pair it with your routing number. The routing number tells the system which bank to send the money to; the account number tells the bank which account within that bank. Without both, the transaction won't go through.
Account numbers for different account types
If you have a savings account at the same bank, it has a different account number from your checking account. Each account is tracked separately, so the bank needs a unique identifier for each one. The routing number stays the same across all your accounts at that bank, but the account number changes.
If you have accounts at multiple banks, each bank has its own routing number, and each account has its own account number. This is why it's important to keep track of which number belongs to which account — mixing them up will send money to the wrong place.
Frequently Asked Questions
Is my account number the same as my debit card number?
No. Your debit card number is printed on the front of the card and is used for purchases and ATM withdrawals. Your account number is different and is used for bank transfers and direct deposits. You can find your account number on your checks or in online banking, not on the card itself.
Can someone steal money from my account if they have my account number?
Not without your routing number as well. A thief needs both numbers to initiate a transfer. Even with both, most banks require additional verification before processing large transfers. If you're concerned about unauthorized activity, contact your bank immediately — they can freeze your account and investigate.
What if I have multiple checking accounts at the same bank?
Each account has its own unique account number. Your routing number stays the same, but the account number changes. Make sure you're using the correct account number for the account you want to transfer from or deposit into.
Do I need to memorize my account number?
No. Write it down and keep it in a safe place, or store it in a password manager. You'll need it occasionally, but you don't need to memorize it. Your bank can always provide it again if you forget.