Your account number is the unique identifier your bank assigns to your specific checking or savings account
Your account number is a string of digits—usually between 8 and 17 characters—that identifies your individual account at your bank. It is different from your routing number, which identifies the bank itself. You need your account number when you set up direct deposit, arrange wire transfers, make online payments, or authorize someone else to move money in or out of your account.
The account number belongs only to you at that bank. If you have multiple accounts at the same bank—a checking account and a savings account, for example—each one has its own account number. If you move to a different bank, you get a new account number.
Key Takeaways
- Your account number appears on the bottom left of your checks, after the routing number, and is printed on your bank statements.
- You can find your account number by logging into your bank's website or mobile app, calling customer service, or visiting a branch in person.
- Never share your account number with anyone unless you initiated the transaction and trust the recipient completely.
- Your account number is not the same as your debit card number, credit card number, or routing number—each serves a different purpose.
Where to find your account number on a check
If you have a checkbook, the easiest place to find your account number is at the bottom of any check. Look at the bottom left corner. You will see three groups of numbers separated by colons or special symbols. The first group is your routing number. The second group, in the middle, is your account number. The third group on the right is the check number itself.
The account number on a check is usually 10 to 12 digits long, though this varies by bank. Write down the account number exactly as it appears—do not add or remove any zeros or digits.
Finding your account number online or by phone
Log into your bank's website or mobile app and look for a section labeled "Account Details," "Account Information," or "My Accounts." Your account number will be displayed there, often with the last four digits highlighted for security. This is the fastest way to find it if you do not have checks on hand.
If you cannot access your online account, call your bank's customer service number on the back of your debit card or on your most recent bank statement. A representative can read your account number to you over the phone. Have your Social Security number or other identifying information ready so the bank can verify who you are.
You can also visit a branch in person and ask a teller for your account number. Bring a photo ID.
What your account number appears on
Your account number shows up on several documents and places:
- Bank statements (usually at the top or in the account details section)
- Deposit slips
- Wire transfer confirmations
- Direct deposit authorization forms
- Loan documents or credit applications
- Your debit card (sometimes, but not always—check the back)
Not every bank prints the account number on the debit card itself. If yours does not, use your checks or your online account instead.
Account number versus other numbers on your account
Your bank account comes with several different numbers, and it is important to keep them straight:
| Number | What it is | Who needs it |
|---|---|---|
| Routing number | Identifies your specific bank branch | Anyone sending you money via ACH or wire transfer |
| Account number | Identifies your specific account at that bank | Anyone moving money to or from your account |
| Debit card number | The 16-digit number on the front of your card | Merchants when you swipe or use it online |
| Check number | Identifies each individual check you write | You, for your own record-keeping |
Your account number and routing number together make up what is called your bank details or banking information. Both are needed for direct deposit, ACH transfers, and wire transfers. Your debit card number is separate and is used only for card transactions.
When you need to share your account number
You will need to provide your account number in these situations: setting up direct deposit from an employer or government agency, arranging a wire transfer, paying a bill through your bank's bill pay service, authorizing an automatic payment to a creditor or utility company, or receiving a refund that the payer wants to deposit directly into your account.
Only share your account number with people or organizations you trust and who have a legitimate reason to use it. If someone calls you out of the blue asking for your account number, do not give it to them. Legitimate banks and government agencies will not call you asking for this information.
What to do if you forget your account number
If you need your account number and cannot find it on a check or statement, the fastest route is to log into your online banking account. If you have forgotten your login credentials, use the "Forgot Password" link on your bank's website to reset them.
If you do not have online access set up, call your bank's customer service line. The number is usually on the back of your debit card or on a recent statement. Have your Social Security number, date of birth, and a form of ID ready. The representative will verify your identity and provide your account number.
Frequently Asked Questions
Is my account number the same at every bank?
No. Each bank assigns you a different account number. If you move your account to a new bank or open an account at a second bank, you will receive a new account number. Your old account number becomes inactive once you close the account.
Can someone steal money from my account if they have my account number?
Having only your account number is not enough to steal from your account. A person would also need your routing number and would typically need to set up an ACH transfer or authorize a withdrawal through your bank. If you suspect unauthorized activity, contact your bank immediately and review your recent transactions.
Why do I have different account numbers for my checking and savings accounts?
Because they are separate accounts. Your bank treats them as distinct financial products, even though they are both held at the same institution. Each account has its own balance, terms, and account number.
What if my bank merged with another bank?
In most mergers, your account number stays the same, but your routing number may change. Your bank will notify you of any changes and update your account information. If you have automatic payments or direct deposits set up, contact those organizations to confirm they have your updated routing number if required.