Your account number is the second set of digits on the bottom left of your check, between the routing number and the check number.

When you look at the bottom of a check, you will see three groups of numbers separated by vertical lines. The first group (on the far left) is your routing number — it identifies your bank. The second group is your account number — it identifies your specific account at that bank. The third group (on the far right) is your check number — it identifies that individual check.

The account number is usually 10 to 12 digits long, though the length varies by bank. You will use this number when you need to set up direct deposit, arrange automatic payments, or give someone permission to deposit money into your account. It is not secret information — you can share it freely with employers, utility companies, or anyone else who needs to put money in or take money out of your account.

Key Takeaways

  • Your account number appears on the bottom of your check in the middle group of digits, between the routing number and check number.
  • Account numbers are typically 10 to 12 digits long and identify your specific account at your bank.
  • You can safely share your account number with employers, billers, and others who need to deposit or withdraw funds from your account.
  • If you cannot find your account number on a check, you can also find it on your bank statement, debit card, or by calling your bank.

How the three numbers work together

All three numbers at the bottom of your check work as a team. The routing number tells the banking system which bank to use. The account number tells that bank which account within the bank to use. The check number is just a reference for you and your bank to track which specific check you wrote.

When someone deposits a check you wrote, the bank reads all three numbers in order. Without the routing number, the bank would not know where to send the money. Without the account number, the bank would not know which of its thousands of accounts to take the money from. Without the check number, you and the bank would have a harder time matching the check to your records later.

Where else to find your account number

If you do not have a check in front of you, your account number appears in several other places. Your bank statement — whether you receive it by mail or view it online — shows your account number at the top or in a summary section. Your debit card may also have your account number printed on it, though some banks do not print it there for security reasons.

The fastest way to find your account number if you are unsure is to log into your online banking account. Your account number is almost always visible on the main dashboard or account summary page. If you still cannot locate it, you can call your bank's customer service line and they will provide it to you over the phone after confirming your identity.

Why you need your account number for different tasks

Your employer needs your account number (along with your routing number) to set up direct deposit of your paycheck. Utility companies, insurance companies, and loan servicers need it to withdraw automatic payments from your account. If you want to transfer money between your own accounts at different banks, you will need to provide the account number of the account you are sending money to.

Some online services also ask for your account number when you want to link your bank account to their platform. This is normal and safe — the account number alone cannot be used to access your account or move money without additional verification.

The difference between account number and routing number

People often confuse these two numbers because they appear right next to each other on a check. The routing number is five or nine digits and identifies your specific bank or credit union branch. The account number is longer — usually 10 to 12 digits — and identifies your account within that bank.

Think of it this way: the routing number is like the address of a post office, and the account number is like your mailbox number at that post office. You need both pieces of information for money to reach the right place. If you give someone only the routing number, they will know which bank to use but not which account to deposit into. If you give only the account number, they will not know which bank to contact.

What to do if your check does not show the account number clearly

Older checks or checks printed by a previous bank may be harder to read. If the numbers at the bottom are faded or unclear, do not guess. Instead, contact your bank directly by phone or through your online banking portal and ask them to confirm your account number. They can also tell you your routing number at the same time.

If you have recently switched banks and are still using old checks from your previous bank, those checks will have your old account number and routing number. Do not use them. Order new checks from your current bank, or use electronic transfers instead. Using old checks can cause deposits or withdrawals to go to the wrong account.

Frequently Asked Questions

Is my account number the same as my debit card number?

No. Your debit card number and your account number are different. Your debit card number is printed on the front of the card and is used when you swipe or insert the card at a store. Your account number is printed on the bottom of your checks and is used for electronic transfers and direct deposits.

Can someone steal money from my account if they know my account number?

Your account number alone is not enough to steal money. A person would also need your routing number and usually some form of authorization or verification from you. That said, you should not share your account number with anyone you do not trust, and you should monitor your account regularly for unauthorized transactions.

What if I write down my account number wrong when giving it to someone?

If you give an incorrect account number, the deposit or withdrawal will likely be rejected or sent to the wrong account. The receiving bank will usually catch the error and return the money. Always double-check the account number before you submit it, and ask the person receiving it to confirm they have written it down correctly.

Do I need both the routing number and account number for direct deposit?

Yes. Your employer needs both your routing number and your account number to set up direct deposit. Some employers ask for this information on a form, and others ask you to provide a blank check so they can read both numbers from it. Either way, both numbers are required for the deposit to reach your account.