Your account number is printed on the bottom left of your check, right after the routing number
The bottom of every check contains three sets of numbers printed in a special magnetic ink. Reading left to right, you'll see the routing number first (nine digits), then your account number (typically 10 to 12 digits), then the check number (usually three to four digits on the right). Your account number is the middle set — the longest group of digits between the routing number and the check number.
The account number identifies your specific checking account at your bank. It's unique to you and stays the same across all your checks from that account. If you're setting up automatic payments, sending money via wire transfer, or giving someone your banking information, this is the number they'll need along with your routing number.
Not all checks print the account number in the same exact position — some banks place it slightly higher or lower on the line — but it always appears in that bottom strip of magnetic numbers. If you're having trouble spotting it, look for the longest sequence of digits in that line. That's your account number.
Key Takeaways
- Your account number appears on the bottom of your check as the middle set of numbers, between the routing number and check number.
- Account numbers are typically 10 to 12 digits long and are unique to your specific checking account.
- The three number groups on the bottom of a check always appear in this order: routing number, account number, then check number.
- You'll need both your routing number and account number together when setting up direct deposit, wire transfers, or automatic bill payments.
What the numbers look like in order
The magnetic line at the bottom of a check follows a consistent format across all U.S. banks. On the far left sits the nine-digit routing number, which identifies your bank and the Federal Reserve district it belongs to. when ready after that comes your account number — the digits that belong to you alone. On the far right is the check number, which is also printed in larger type in the top right corner of the check itself.
Some older checks or checks from smaller banks may have a slightly different layout, but the account number will still be the middle section of that bottom line. If you're looking at a check and unsure which number is which, count the digits: routing numbers are always exactly nine digits, and account numbers are always longer than that.
Why you need to know where it is
Your account number is required information for several common banking tasks. When your employer sets up direct deposit, they'll ask for both your routing number and account number. If you're sending money to someone via wire transfer through your bank, you'll provide your account number. Some bill payment systems and automatic transfer setups also require it.
The account number is also what appears on your bank statements and online banking portal. If you're trying to match a transaction or verify you're looking at the right account, the account number is your reference point. It's printed on your checks specifically so you have it readily available when you need to share your banking details with someone else.
If your checks don't have the magnetic numbers printed
Temporary checks or starter checks sometimes arrive without the magnetic ink numbers printed on the bottom. If you have checks like this, you can still find your account number by logging into your online banking account — it will be displayed in your account settings or on your account overview page. You can also call your bank's customer service line and they'll provide it over the phone.
Your bank statement also lists your account number at the top or in the account information section. If you need the number before your first statement arrives, the online banking portal is the fastest route — you'll have access to it as soon as your account is open.
How to read the numbers correctly
The magnetic ink numbers can sometimes be hard to read, especially if the check is worn or has been handled a lot. The numbers are printed in a specific font designed to be readable by machines, which can make them look unusual to the human eye. If you're having trouble reading them, try tilting the check under a light or using a magnifying glass.
When you're copying the number down or typing it into a form, go slowly and double-check each digit. A single wrong number will cause direct deposit to fail or a wire transfer to go to the wrong account. If you're unsure about any digit, refer to your online banking account or call your bank to confirm the correct number.
Account number vs. routing number: what's the difference
The routing number and account number work together but serve different purposes. Your routing number tells the banking system which bank and branch you use — it's the same for everyone at your bank. Your account number is unique to you and identifies your specific account within that bank. Think of the routing number as the bank's address and the account number as your mailbox number.
Both numbers appear on every check you write, and both are required when you're setting up transfers or direct deposit. If you provide only one without the other, the transaction won't go through. That's why banks always ask for both pieces of information together.
Frequently Asked Questions
Can I use my account number without the routing number?
No. The account number alone doesn't tell the banking system which bank to send money to. You need both the routing number and account number together for any transfer or direct deposit to work correctly.
Is my account number the same as my card number?
No. Your debit card has its own card number printed on the front, which is different from your account number. The account number appears only on your checks and in your online banking account. Never use your card number when someone asks for your account number.
What if I can't read the numbers on my check?
Log into your online banking account and look for your account information section — the account number will be listed there. You can also call your bank's customer service line and they'll read it to you over the phone.
Do I need to memorize my account number?
No. You only need to know where to find it when you need it. Keep a check in a safe place or bookmark your online banking login so you can look it up quickly when setting up direct deposit or transfers.