The fastest way: check your debit card, checks, or online banking
Your bank account number is printed on the bottom left of your checks, usually after the routing number and before the check number. If you do not have checks, log into your bank's website or mobile app — most banks display your full account number in the account details or summary section, sometimes labeled "Account Information" or "My Accounts". You can also call your bank's customer service line; they will verify your identity and read it to you over the phone.
The account number itself is typically 8 to 12 digits, though this varies by bank. Some banks also print it on the back of your debit card, though not all do. If you need it urgently and cannot access online banking, a phone call to your bank is the most direct route — you will have the number within minutes.
Key Takeaways
- Your account number appears on the bottom left of any checks you have, printed between the routing number and the check number.
- Log into your bank's website or app and look for "Account Information" or "My Accounts" to see your full account number.
- Call your bank's customer service line and provide your name and identifying information; they will read your account number to you.
- Account numbers are typically 8 to 12 digits long, and the exact length varies by bank and account type.
Finding it in online banking
Most banks show your account number prominently once you log in. Look for a section called "Account Details", "Account Summary", or "My Accounts" — the exact name depends on your bank. The account number is usually displayed in full, though some banks mask it with asterisks for security and only show the last four digits unless you click to reveal the full number.
If you cannot find it in the main dashboard, check under settings or account management. Some banks hide the full account number one level deeper for security reasons. If you are still stuck, the bank's help section or FAQ will tell you exactly where to look for your specific bank's interface.
Reading it from checks or statements
The bottom of a check contains three numbers in order from left to right: the routing number (9 digits), your account number (usually 8 to 12 digits), and the check number (usually 4 digits). The account number is always in the middle. If you have a paper statement from your bank, your account number is also printed near the top, often next to your name or in the account information section.
This method works even if you have not used online banking in years — as long as you have one old check or statement, you can find the number. Keep in mind that if you have closed an account, that account number is no longer active, so you would need to find the number for your current account instead.
Calling your bank directly
Phone your bank's customer service number, which is usually 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 before sharing your account number.
Wait times vary depending on the time of day and how busy the bank is. Early morning or mid-week calls are usually faster than Friday afternoons. Once the representative confirms your identity, they will read your account number to you. Write it down or ask them to repeat it to make sure you have it correct.
What to do if you cannot access your account
If you have forgotten your online banking password, most banks offer a password reset option on their login page. This usually involves answering security questions or receiving a code via email or text. Once you reset your password, you can log in and find your account number.
If you have lost access to the email or phone number associated with your account, you will need to call the bank or visit a branch in person. Bring a government-issued ID — a driver's license or passport — and the bank will verify your identity and help you regain access to your account or provide your account number directly.
Account numbers for different account types
Most people have one checking account and possibly one savings account, each with its own account number. If you have multiple accounts at the same bank, each one has a separate number. When you need your account number for a specific purpose — setting up direct deposit, making a wire transfer, or arranging automatic payments — make sure you are using the number for the correct account.
Some banks also offer money market accounts, certificates of deposit (CDs), or investment accounts, and these also have separate account numbers. If you are unsure which account number you need, the person or organization requesting it can usually tell you what type of account it should be for.
Frequently Asked Questions
Is my account number the same as my routing number?
No. Your routing number identifies your bank (it is the same for all customers at that bank), while your account number identifies your specific account. Both appear on the bottom of a check, with the routing number first and the account number second.
Can I share my account number with anyone?
Your account number alone is not enough for someone to withdraw money from your account — they also need your routing number and usually additional verification. However, only share it with people or organizations you trust, such as your employer for direct deposit or a utility company for automatic payments.
What if I have a joint account?
A joint account has one account number shared by both account holders. Either person can find it using the same methods — checks, online banking, or calling the bank. Both of you have equal access to the account and its information.
Do I need my account number to log into online banking?
No. You typically log in with your username or email address and password. Your account number is something you look up after you are already logged in, or something you provide to others who need to send you money or set up payments.
What should I do if I think my account number has been compromised?
Call your bank when ready. They can monitor your account for suspicious activity and, if necessary, close the account and issue you a new one with a different account number. The sooner you report it, the faster they can protect your account.