Your account number is the second set of digits printed on the bottom of your check
The bank account number on a check is the string of digits printed between the routing number and the check number at the bottom left of the check. It identifies your specific account at your bank. Most account numbers are between 8 and 12 digits long, though the exact length varies by bank.
When you look at the bottom of a check from left to right, you'll see three separate groups of numbers. The first group (usually 9 digits) is your bank's routing number. The second group is your account number. The third, shorter group on the far right is the check number itself. The account number is the one in the middle.
You need your account number when you're setting up direct deposit, arranging wire transfers, or providing banking details to receive refunds or payments. It's also what appears on bank statements and in your online banking portal.
Key Takeaways
- Your account number is the middle set of digits printed at the bottom of your check, between the routing number and the check number.
- Account numbers are typically 8 to 12 digits long, but the exact length depends on your bank.
- You can also find your account number on your bank statement, in your online banking login, or by calling your bank's customer service line.
- When providing your account number to receive refunds or payments, confirm you're using the correct number to avoid delays or misdirected funds.
How to read the numbers at the bottom of a check
The bottom of a check contains what's called the MICR line (Magnetic Ink Character Recognition). This line is printed in a special machine-readable format so banks can process checks automatically. Reading it from left to right, you'll encounter three distinct number groups separated by small vertical lines.
The first group is always your bank's routing number — a 9-digit code that identifies which bank or credit union holds your account. The second group is your account number. The third group, printed on the far right side, is the check number that corresponds to that individual check. Some checks also print the account number and check number in human-readable form in the upper right corner for reference.
If the numbers at the bottom are hard to read or faded, you can find your account number printed elsewhere on the check or contact your bank directly.
Where else to find your account number
You don't need a check to locate your account number. Your bank provides this information in multiple places. Log into your online banking account and look at the account summary or account details page — your account number appears there. You can also find it on your monthly bank statement, usually printed near the top or in the account information section.
If you don't have access to online banking or a recent statement, call your bank's customer service number (usually on the back of your debit card) and provide your name and identifying information. A representative can read your account number to you over the phone. Some banks also display it in their mobile app under account settings.
Why your account number matters for refunds and payments
When you're waiting for a refund — whether from taxes, insurance, a business, or a government payment — the organization sending the money often needs your account number to deposit it directly into your bank account. This is faster and more secure than waiting for a paper check in the mail.
Direct deposit requires both your routing number and your account number. If you provide the wrong account number, the deposit may go to someone else's account or be rejected by the bank, which delays your refund. Always double-check both numbers before submitting them, especially when setting up direct deposit for the first time with a new organization.
The difference between account number and routing number
These two numbers work together but serve different purposes. Your routing number tells the banking system which bank to send the money to. Your account number tells that bank which account within the bank should receive the funds. Think of the routing number as the bank's address and the account number as your mailbox number at that address.
You need both numbers to receive direct deposits or wire transfers. The routing number is the same for all customers at your bank (or all customers at a specific branch, depending on the bank). Your account number is unique to you — no other person at your bank has the same account number.
What to do if you can't find your account number
If you've lost your checks, don't have a recent statement, and can't log into online banking, contact your bank directly. You'll need to verify your identity with your name, date of birth, and possibly your Social Security number or a recent deposit amount. Once verified, the bank can provide your account number immediately.
If you're trying to receive a refund and the organization asking for your account number won't accept it over the phone, ask whether they can look it up using your name and routing number instead. Some organizations can retrieve your account number from their own records if you provide enough identifying information.
Frequently Asked Questions
Is it safe to give someone my account number?
Your account number alone cannot be used to withdraw money from your account — a thief would also need your routing number and access to your bank's systems. However, only provide your account number to organizations you trust, such as your employer, your bank, or government agencies processing refunds. Never share it in response to unsolicited phone calls or emails.
Can I use my account number instead of a check to pay someone?
Yes. If you need to pay a bill or send money and don't have a check, you can provide your routing number and account number to set up a bank transfer or automatic payment. The recipient's bank uses these numbers to pull funds from your account. Make sure you trust the recipient before sharing this information.
What if the numbers on my check are smudged or unclear?
Contact your bank and ask them to confirm your account number. You can also look at your bank statement or log into online banking — both show your account number in clear, printed form. If you need new checks printed, your bank can do that and will print the correct numbers.
Do I need my account number to check my refund status?
Most refund tracking systems ask for your Social Security number or tax ID, not your account number. However, if you're tracking a direct deposit that's already been sent, having your account number handy helps you confirm with your bank whether the deposit has arrived.