Where the account number sits on your check
Your account number is printed at the bottom of every check you write. It appears in the middle section of three groups of numbers, between the routing number on the left and the check number on the right. All three are printed in magnetic ink that machines can read, but you can read them with your eyes too.
The layout is always the same: routing number | account number | check number. The account number is typically 10 to 12 digits long, though the length varies by bank. It identifies your specific account at your bank, separate from every other account the bank holds.
Key Takeaways
- Your account number is the middle group of digits at the bottom of your check, between the routing number and check number.
- Account numbers are usually 10 to 12 digits long, but the exact length depends on your bank.
- You need both your routing number and account number together to set up direct deposit, wire transfers, or automatic payments.
- If you cannot read the numbers on your check clearly, call your bank or log into your online account to find both numbers.
- The account number on your check is the same one your bank uses internally; it never changes as long as you keep the account open.
How to identify which digits belong to your account
Look at the bottom left of your check. The first group of numbers you see is your routing number — usually nine digits. After a small space, the next group is your account number. Count the digits: most banks print 10, 11, or 12 digits for the account number, though some print fewer.
The easiest way to be certain is to compare two of your checks. The first and last groups of numbers will change from check to check (those are check numbers), but the middle group stays exactly the same. That middle group is your account number.
Why you need both numbers together
Banks use your routing number to identify which bank you use, and your account number to identify which account within that bank is yours. Neither one works alone. When you set up direct deposit at a new job, transfer money between banks, or authorize automatic bill payments, you will need to provide both numbers.
Your employer's payroll system uses the routing number to find your bank, then uses the account number to deposit your paycheck into the right account. If you give only one number, the transaction will fail or go to the wrong place. Always write down or copy both numbers together when you need them.
What to do if the numbers are hard to read
Checks printed on colored paper, very old checks, or checks that have been folded or wet can be difficult to read. If you cannot make out the digits clearly, do not guess — call your bank's customer service line and ask them to read the numbers to you over the phone. They can look up your account and confirm both your routing number and account number in seconds.
You can also log into your online banking account if your bank offers it. Most banks display your routing number and account number in the account settings or profile section, usually labeled "Account Information" or "Bank Details." This is often faster than calling and gives you a written record you can save.
The account number never changes
As long as your account stays open, your account number remains the same for the life of the account. You can use the same account number on every check you write, for every direct deposit you set up, and for every automatic payment you authorize. The bank will not reassign it or change it unless you close the account and open a new one.
If you lose a checkbook or run out of checks, the new checks your bank prints will have the same account number. The only thing that changes from check to check is the check number itself — the small number in the top right corner and again at the bottom right.
Account numbers and security
Your account number is printed on every check you write, which means anyone who receives a check from you can see it. This is normal and expected — the account number alone cannot be used to withdraw money or transfer funds without your routing number, and even together they are not enough to authorize a transaction without additional verification.
However, you should not write your account number on documents you mail or leave lying around unnecessarily. If you need to share your account information with someone, use a secure method like a phone call or encrypted email. If you suspect someone has misused your account number, contact your bank immediately and ask them to monitor your account for unauthorized activity.
Frequently Asked Questions
Is my account number the same as my debit card number?
No. Your debit card has its own 16-digit number printed on the front. Your account number is different and appears only at the bottom of your checks. You need the account number for bank transfers and direct deposit, but you use the debit card number for purchases and ATM withdrawals.
Can I use just my account number to receive money?
No. You must provide both your routing number and account number together. The routing number tells the sending bank which bank to send the money to, and the account number tells that bank which account within the bank should receive it. Without both, the transfer cannot be completed.
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 but the same routing number. Make sure you use the correct account number for the account you want the money to go into.
Do I need to memorize my account number?
No. Write it down and keep it in a safe place, or save it in your phone's notes app. You will need it when you set up direct deposit or automatic payments, but you do not need to memorize it. Having it written down is safer than trying to remember it.