Your checking account number is printed on the bottom left of your checks, or you can find it online through your bank's website or mobile app

The easiest place to look is the bottom of a check from your checkbook. The account number appears after the routing number and before the check number — it's the longest string of digits on that line. If you don't have checks handy, log into your bank's website or open the mobile app, go to your account details or account summary, and the account number will be listed there. You can also call your bank's customer service line and provide your name and identifying information, and they will read it to you over the phone.

Different banks format their websites differently, but the account number is almost always visible within the first screen after you log in — usually labeled "Account Number" or shown next to your account type (like "Checking"). Some banks also print it on your debit card, though not all do. If you're looking at a statement, either paper or digital, the account number appears at the top or in the account information section.

Key Takeaways

  • Your checking account number is the middle set of digits on the bottom line of any check you write.
  • You can find your account number by logging into your bank's website or app and viewing your account details.
  • Calling your bank's customer service line and providing your name and ID will get you the number immediately.
  • Some banks print the account number on your debit card, though this varies by institution.
  • Paper statements and digital statements both display your account number in the account information section.

Finding it on a check

If you have a checkbook, the fastest route is to pull out any check. Look at the bottom of the check — you'll see a line of numbers in a special magnetic ink format. Read from left to right: the first group is the routing number (usually nine digits), the second group is your account number (typically 10 to 12 digits, but this varies by bank), and the third group is the check number.

The account number is always in the middle of those three groups. It's the longest one. Write it down or take a photo if you need to reference it later. If your checks are old or faded, the numbers may be hard to read — in that case, move to one of the other methods below.

Logging into your bank's online account

Go to your bank's website and sign in with your username and password. Once you're logged in, look for a section labeled "Account Details," "Account Information," "My Accounts," or "Account Summary" — the exact name depends on your bank. Click on the checking account you want information about.

Your account number will be displayed prominently on that page, usually near the top. Some banks show it in full; others mask some digits for security and show only the last four. If your bank masks it, you can usually click a button or link that says "Show Full Account Number" or "Reveal Account Number," and it will display the complete number temporarily. Take a screenshot or write it down before you leave the page.

If you can't find the account information section, look for a "Settings" or "Profile" menu, or search the help section of the website for "account number." Most banks also have a search function on their website — type "account number" and it will direct you to the right page.

Using your bank's mobile app

Open your bank's mobile app and sign in. Tap on the checking account you need information about — it's usually shown as a card or listed under "My Accounts." The account number will appear on that screen, often displayed prominently at the top or in a section labeled "Account Details."

Like the website, some apps mask the full number for security. Look for an eye icon or a "Show" button to reveal the complete account number. Once it's visible, you can take a screenshot or write it down. The mobile app is often faster than the website if you're on the go.

Calling your bank directly

If you don't have access to checks, the internet, or your mobile app, call the customer service number on the back of your debit card or on your bank's website. Have your name, date of birth, and the last four digits of your Social Security number ready — the bank will use these to confirm your identity.

Once you're verified, tell the representative you need your checking account number. They will read it to you. Ask them to repeat it so you can write it down correctly. This method works any time the bank is open, and some banks offer 24/7 customer service lines.

Finding it on your bank statement

If you receive paper statements, your account number is printed on every statement, usually in the top section near your name and address or in a section labeled "Account Information." Digital statements (also called e-statements) display it in the same place — look at the top of the PDF or the account information section of your online banking portal.

Statements are useful if you need to reference the account number later, since you can keep them on file. However, this method is slower than checking a check or logging in online, since you have to wait for a statement to arrive or search through old ones.

What to do if you can't find it

If none of the above methods work — for example, if you've lost your checks, forgotten your online password, and don't have your debit card — visit your bank in person. Bring a photo ID and ask for your account number. A teller can look it up in seconds and write it down for you or print it on a receipt.

If you're locked out of your online account, use the "Forgot Password" or "Forgot Username" link on your bank's website to reset your access. You'll usually need to verify your identity by answering security questions or confirming your email address. Once you regain access, you can find your account number through the methods described above.

Frequently Asked Questions

Is my account number the same as my routing number?

No. Your routing number identifies your bank or branch (usually nine digits), while your account number identifies your specific account at that bank (typically 10 to 12 digits). Both appear on the bottom of your checks, but in different positions. You need both to set up direct deposit or wire transfers.

Can I share my account number with anyone?

Your account number alone is not enough for someone to steal money from your account — they also need your routing number and, in most cases, your permission through your bank. However, it's still wise to share it only with people and organizations you trust, like your employer for direct deposit or a utility company for automatic bill payments.

What if my account number appears different on different documents?

It shouldn't. Your account number is fixed and doesn't change unless you close the account and open a new one. If you see different numbers on different documents, double-check that you're looking at the right account — you may have multiple accounts at the same bank. If the numbers genuinely differ, contact your bank to clarify which is correct.

Do I need my account number to use my debit card?

No. Your debit card has its own card number printed on the front, which is different from your account number. You use the card number for purchases and online transactions. Your account number is needed for direct deposit, wire transfers, and setting up automatic bill payments.

Can I change my account number?

No, you cannot change your account number while keeping the same account open. Your account number is assigned by the bank when you open the account and stays the same for the life of that account. If you want a different number, you would need to close the account and open a new one, which is not practical for most people.