Check your checks or debit card first

Your bank account number is printed on the bottom left of every check you write. Look at the series of numbers after the routing number — that's your account number, usually 10 to 12 digits long. If you have checks on hand, this is the fastest place to look.

Your debit card does not print your account number on its face, so don't expect to find it there. The card itself is tied to your account, but the number you see on the front is the card number, which is different from your account number.

Key Takeaways

  • Your account number appears on the bottom left of any check you have, printed after your routing number.
  • Your online banking portal or mobile app shows your account number in the account details or summary section.
  • Call your bank's customer service line or visit a branch in person if you need the number right away and have no checks.
  • Your account number is not the same as your debit card number, credit card number, or routing number.
  • Banks typically ask for your account number when you set up direct deposit, wire transfers, or automatic bill payments.

Log into your online banking account

Most banks display your account number in your online portal as soon as you log in. Look for a section labeled "Account Summary," "Account Details," or "My Accounts" — the exact name varies by bank. Your account number will be listed there alongside your account type (checking, savings, money market) and your current balance.

If you use your bank's mobile app, the same information is usually available in the same place. Some banks hide the full account number behind a "show" button for security, so you may need to tap or click to reveal all the digits.

Call your bank's customer service number

The phone number for customer service is on the back of your debit card, on your bank statements, or on your bank's website. When you call, have your Social Security number and date of birth ready — the bank will ask for these to confirm your identity before giving out account information.

Wait times vary depending on the time of day and how busy the bank is. Calling early in the morning on a weekday usually means a shorter hold. You'll have your account number within a few minutes of reaching a representative.

Visit your bank branch in person

Walk into any branch of your bank with a photo ID and ask a teller for your account number. They can print it out for you or write it down on the spot. This is useful if you need the number immediately and don't have online access or a phone handy.

You don't need an appointment — just go during business hours. If you're not sure where your nearest branch is, search your bank's website for a branch locator tool.

Check your bank statements

Paper statements mailed to your home print your account number at the top or in a header section. If you receive electronic statements by email, open the PDF and look for the same location. The account number is usually printed in full, though some banks abbreviate it as "****1234" to show only the last four digits in certain sections.

If you've thrown away old statements, you can request a copy from your bank. Most banks keep statements available online for at least seven years, so you can download an older one if needed.

What to do if you can't find your account number

If none of the above options work — you have no checks, can't access online banking, and don't have statements — call your bank's main customer service line. You'll need to verify your identity with your Social Security number, date of birth, and possibly your address. The bank will confirm your account number over the phone.

Some banks also allow you to reset your online banking password through their website if you've forgotten it, which would then give you access to your account number. Look for a "Forgot Password" or "Can't Log In" link on your bank's login page.

Frequently Asked Questions

Is my account number the same as my routing number?

No. Your routing number identifies which bank you use (usually nine digits), while your account number identifies your specific account at that bank (usually 10 to 12 digits). Both appear on the bottom of your checks, but in different positions.

Can someone use my account number to steal money from me?

Your account number alone is not enough to drain your account. A person would also need your routing number and typically your name and address. However, don't share your full account number with people you don't trust. Only give it to your employer (for direct deposit), your bank, or businesses you're paying intentionally.

Why do I need my account number?

You'll need it to set up direct deposit from your employer, arrange wire transfers, authorize automatic bill payments, or provide banking details to a third party. Your bank may also ask for it when you call customer service to confirm your identity.

What if my bank account number changed?

Your account number does not change unless you close the account and open a new one. If you think your number has changed, contact your bank directly — it's possible you're looking at a different account or a statement from before you opened your current account.