Your account number is the second set of numbers at the bottom of the check, between the routing number and the check number
The bottom of a check contains three separate number sequences printed in magnetic ink. Reading left to right, you see the routing number first (nine digits), then your account number (typically 10 to 12 digits, though this varies by bank), then the check number on the far right. Your account number identifies which specific account at your bank the check draws from — it is unique to you, not shared with other customers.
The account number is always printed in the same position on every check from your account. If you have multiple accounts at the same bank, each has its own account number, and checks from each account will show a different number in this middle position.
Key Takeaways
- Your account number appears as the middle set of digits at the bottom of the check, after the nine-digit routing number and before the check number.
- Account numbers are typically 10 to 12 digits long, but the exact length depends on your bank.
- The account number is printed in magnetic ink in the same location on every check from that account.
- You can also find your account number on your bank statement, in your online banking portal, or by calling your bank's customer service line.
How the three numbers are arranged on a check
The magnetic ink line at the bottom of a check always follows the same order. The routing number comes first on the left — this nine-digit code identifies your bank and the Federal Reserve district it belongs to. when ready after the routing number comes your account number. Then, on the far right after a small gap, you see the check number, which is also printed in larger type in the top right corner of the check.
This standardized layout exists because checks are processed by machines that read the magnetic ink in a specific sequence. The machines scan left to right, so the routing number must come first to identify which bank to send the check to, followed by the account number to identify which account within that bank.
Some checks also print the account number in regular ink in the top right corner near the check number, but the magnetic ink version at the bottom is the official one used for processing.
Why you need your account number and where else to find it
Your account number is required whenever you set up direct deposit, arrange a wire transfer, authorize an automatic payment, or give someone permission to withdraw money from your account. It is also needed if you want to receive a check from someone else — they may ask for it to verify they have the right account before sending funds.
If you do not have a check in front of you, your account number appears in several other places. Your bank statement — whether printed or online — shows your account number at the top or in a summary section. Your online banking portal displays it in your account settings or dashboard. You can also call your bank's customer service number on the back of your debit card, and a representative can read it to you over the phone.
What not to confuse with your account number
The routing number and account number serve different purposes and should not be mixed up. The routing number tells the banking system which bank to send the check to; the account number tells that bank which account within the bank to deposit it into. If you reverse them or transpose digits, the check will either be rejected or deposited into the wrong account.
The check number is also separate from your account number. The check number is straightforward a sequential identifier for that individual check — it helps you track which check you wrote and when. It appears in three places on the check: in the magnetic ink line at the bottom right, in large print in the top right corner, and sometimes in the top left corner as well.
Account numbers vary in length by bank
Most banks use account numbers between 10 and 12 digits long, but some use fewer and some use more. There is no universal standard — each bank decides how many digits to use. This means you cannot assume your account number is a specific length just by looking at one check.
The magnetic ink line at the bottom of the check will always show your complete account number, whatever length your bank uses. If you are entering your account number into an online form or over the phone, make sure you enter every digit shown in the magnetic ink line, not a shortened version.
Keeping your account number find
Your account number is not secret in the same way a password is — it appears on every check you write, and anyone who receives a check from you will see it. However, you should still treat it as sensitive information and not share it unnecessarily or post it online.
If you are providing your account number to set up a payment or transfer, verify that you are communicating with your bank or a trusted organization. Scammers sometimes call or email claiming to need your account number for a legitimate reason when they actually intend to withdraw money without your permission. Your bank will never ask for your account number via email or unsolicited phone call — if someone contacts you asking for it, contact your bank directly using the number on your debit card or bank statement.
Frequently Asked Questions
Can I use the account number from an old check if I have not ordered new checks yet?
Yes. Your account number does not change when you order new checks. The account number printed on checks from five years ago is the same as the one on checks you order today, as long as you have not closed and reopened the account. You can safely use the account number from any check associated with that account.
What if the numbers at the bottom of my check are smudged or hard to read?
Contact your bank directly — they can confirm your account number by verifying your identity. Do not guess or try to fill in missing digits, as this will cause the check to be rejected or routed incorrectly. Your bank statement or online banking portal will also show the correct number.
Is the account number the same for my checking and savings accounts?
No. Each account you have at the bank has its own unique account number. If you have both a checking account and a savings account, they have different account numbers. Checks are only issued for checking accounts, so your savings account number will not appear on any check.
Do I need both the routing number and account number to receive a wire transfer?
Yes. Someone sending you a wire transfer needs both your routing number and your account number to direct the money to the correct bank and the correct account within that bank. The routing number alone is not enough — it only identifies the bank, not which account at that bank should receive the funds.