Your account number is printed at the bottom left of your check, after the routing number

The account number on a check is the second set of digits printed along the bottom edge, when ready after the routing number. It typically runs 10 to 12 digits long and identifies your specific account at the bank. You'll find it in the same line as the routing number and check number — all three are printed in magnetic ink so they can be read by sorting machines.

The order is always: routing number, then account number, then check number. If you're looking at a check and see three separate groups of numbers at the bottom, the middle group is your account number. It's the same for every check you have from that account, so you only need to find it once.

Key Takeaways

  • Your account number appears at the bottom of the check between the routing number on the left and the check number on the right.
  • The account number is typically 10 to 12 digits and is printed in the same magnetic ink as the routing number.
  • Every check from the same account carries the same account number, so you can reference any check you have on file.
  • If you can't read the printed number clearly, your bank statement or online banking portal will show your account number in full.

Why the layout matters when you're reading a check

Banks print the routing number, account number, and check number in a specific order because it's designed for machine reading, not human convenience. The magnetic ink character recognition (MICR) line at the bottom of the check follows a standard that all banks use. Understanding the order prevents you from accidentally using the check number (which changes with each check) or the routing number (which is the same for all customers at your bank) when you actually need your account number.

The account number is what ties the check to your specific account. The routing number tells the receiving bank which institution to pull the money from, but the account number tells them which account within that institution. That's why you need the account number for direct deposit setup, wire transfers, or when a merchant needs to verify your banking details.

What to do if the printed number is hard to read

If the numbers at the bottom of your check are faded, smudged, or worn, don't guess. Your bank statement will show your account number clearly — check the top or header section of any monthly statement you receive by mail or email. Your online banking portal will also display your account number prominently, usually on the main dashboard or in an account details section.

You can also call your bank's customer service line and confirm your account number by providing your name and the last four digits of your Social Security number or other identifying information. This takes a few minutes and removes any doubt about which digits are which.

How account numbers differ from routing numbers

The routing number identifies your bank or credit union — it's the same for every customer at that institution. Your account number identifies you within that bank. Think of it this way: the routing number is the address of the bank building, and the account number is your apartment number inside that building.

The routing number is typically nine digits, while the account number is usually 10 to 12 digits. Both appear on every check you write, but they serve different purposes. When you set up direct deposit or a wire transfer, you'll need both numbers. When you're just trying to identify which account a check belongs to, the account number is what matters.

Finding your account number on different check formats

Standard personal checks, business checks, and cashier's checks all follow the same layout at the bottom. The account number appears in the same position regardless of the check design, color, or whether it's from a large national bank or a small credit union. The only exception is starter checks or temporary checks, which may have different formatting — but these still include the account number somewhere on the check, usually in the same bottom-left area.

If you're looking at a check image online (through your bank's portal or a mobile deposit app), the account number is still visible in the same location at the bottom. Some banking apps will highlight or mask parts of the account number for security, showing only the last four digits. In that case, you'll need to look at a physical check or contact your bank to see the full number.

Security considerations when sharing your account number

Your account number is not secret in the same way your PIN or password is — it's printed on every check you write and visible to anyone who receives a check from you. However, you should still be cautious about sharing it unnecessarily. Someone with your account number and routing number can set up unauthorized transfers or payments if they also have access to your online banking credentials.

Never share your account number in response to an unsolicited email, text, or phone call, even if the caller claims to be from your bank. Your bank already has your account number on file and will never ask you to confirm it this way. If you're setting up direct deposit with an employer or a legitimate bill payment with a known company, sharing your account number and routing number is standard and safe.

Frequently Asked Questions

Is the account number the same on every check I have?

Yes. Every check from the same account has the same account number printed on it. The only number that changes is the check number, which increments with each check you write. The routing number also stays the same across all your checks from that account.

What if I have multiple accounts at the same bank?

Each account has its own account number. If you have a checking account and a savings account at the same bank, they will have different account numbers. Checks are only issued for checking accounts, so you'll only see an account number on checks from your checking account. Your savings account number appears on your statements and in your online banking portal.

Can I use the account number from an old check?

Yes, as long as the account is still open and active. The account number doesn't change unless you close the account and open a new one. If you've had the same checking account for years, the account number on a check from five years ago is still valid today.

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

Yes. Direct deposit requires both numbers. The routing number tells the employer's bank where to send the money, and the account number tells your bank which of your accounts to deposit it into. You can find both on any check from that account, or on your bank statement.

What if my check doesn't have a visible account number?

This is rare with standard checks, but if you're looking at a check image that's partially obscured or a very old check, contact your bank directly. They can confirm your account number by verifying your identity. You can also log into your online banking portal, where your account number is always displayed in full.