Your checking account number is printed on the bottom left of your checks, in your bank's online portal, or by calling your bank's customer service line

The fastest way is to look at a check from your account. The account number appears on the bottom of the check, after the routing number and before the check number. If you don't have checks handy, log into your bank's website or mobile app — the account number is usually visible on the account overview page or in account settings. If neither option works, call the phone number on the back of your debit card or on your bank statement; a representative can read it to you in under a minute.

You'll need this number when setting up direct deposit, paying bills online, receiving wire transfers, or authorizing automatic payments. Banks keep this number the same for the life of the account, so once you find it, you can save it for future reference.

Key Takeaways

  • Your account number appears on the bottom left of any check you have, printed between the routing number and the check number.
  • Online banking portals and mobile apps display your account number on the account overview or settings page without requiring a phone call.
  • If you have no checks and cannot access online banking, calling your bank's customer service line will get you the number within minutes.
  • Your account number stays the same throughout the life of your account and is safe to share with employers, billers, and financial institutions.

Reading the account number from a physical check

Open your checkbook and look at any check. At the bottom of the check, you'll see a series of numbers printed in a special magnetic ink format. Reading from left to right, the first set of numbers is your routing number (nine digits), the second set is your account number (typically 10 to 12 digits), and the third set is the individual check number.

The account number is the middle group. Write it down or take a photo of the check for your records. This method works even if your account is closed, as long as you still have an old check — the account number printed on it remains valid for historical reference.

Finding it through online banking

Log into your bank's website using your username and password. Most banks display your account number prominently on the dashboard or home page, often labeled "Account Number" or "Account Details." If it's not when ready visible, look for a tab or menu option called "Account Information," "My Accounts," or "Account Settings."

Mobile banking apps follow the same layout. Tap the account you want, and the account number usually appears near the top of the screen. Some banks hide the full number for security and show only the last four digits by default; if this happens, look for a "Show Full Account Number" button or icon. You may need to verify your identity with a PIN or biometric authentication before the full number displays.

Calling your bank to get the number

Find the customer service number on the back of your debit card, on a recent bank statement, or on your bank's website. Call during business hours and have your identification ready — the representative will ask for your name, date of birth, and possibly the last four digits of your Social Security number or a PIN to confirm you own the account.

Once verified, the representative will read your account number to you. Write it down as they say it, or ask them to repeat it slowly. This process typically takes two to five minutes. If you're calling outside business hours, some banks offer automated phone systems that display your account number after you enter your PIN.

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

If you have no checks, cannot access online banking, and cannot reach your bank by phone, visit a branch in person with a photo ID. A teller can provide your account number when ready. This is also the best option if you've forgotten your online banking password or PIN and cannot reset it remotely.

If your account is very old or you've switched banks, your old account number may no longer be active. In that case, you'll need to contact your current bank to get your current account number. Never assume an old number still works — banks reassign closed account numbers after a period of time.

Keeping your account number safe

Your account number is safe to share with your employer (for direct deposit), with billers (for automatic payments), and with financial institutions (for wire transfers or account linking). These are all legitimate uses that require the number.

Do not share your account number in response to unsolicited emails, text messages, or phone calls, even if the sender claims to be from your bank. Your bank will never ask for your account number via email or text. If you're unsure whether a request is legitimate, hang up or close the message and call your bank directly using the number on your debit card or statement.

Frequently Asked Questions

Is my account number the same as my routing number?

No. Your routing number identifies your bank (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 they are separate numbers. You need both for wire transfers and some bill payments.

Can I use an old account number if I've closed and reopened an account?

No. When you close an account, that number is deactivated. If you later open a new account at the same bank, you'll receive a new account number. Using an old number for direct deposit or payments will cause the transaction to fail or be rejected.

What if I see different account numbers on different documents?

This usually means you have multiple accounts at the same bank — a checking account, a savings account, and possibly a money market account, each with its own number. Verify which account you need by checking the document label or calling your bank. Using the wrong number will route money to the wrong account.

Do I need to memorize my account number?

No. Write it down, save it in a password manager, or take a photo of a check. You don't need to memorize it, but you should know where to find it quickly when you need it for direct deposit, bill payments, or wire transfers.