Your account number is the second set of digits on your check
On a paper check, your account number appears after your routing number. The routing number comes first (nine digits), then your account number follows (usually nine to twelve digits). Both are printed at the bottom left of the check, separated by a colon or space. Your account number identifies which specific account at your bank holds your money — the routing number just tells the system which bank to send it to.
If you do not have checks in front of you, you can find your account number on your bank statement, in your online banking portal, or by calling your bank's customer service line. Many banks print it on the back of your debit card as well, though not all do. The fastest way is usually to log into your bank's website or app — your account number will appear on the account summary or settings page.
Key Takeaways
- Your account number is the longer set of digits that comes after your routing number on a check, usually nine to twelve digits long.
- The routing number (nine digits) identifies your bank; your account number identifies your specific account within that bank.
- You can find your account number on a check, bank statement, online banking portal, or by calling your bank directly.
- When you set up direct deposit or automatic payments, you will need both numbers, but they serve different purposes in the transaction.
- Your account number should be kept private like a password, since it identifies where your money is held.
Where account numbers appear on different documents
Paper checks show both numbers in the same place: the magnetic ink character recognition (MICR) line at the bottom. The routing number comes first on the left, then a colon or space, then your account number. The account number is usually longer — if you see nine digits followed by twelve digits, the twelve-digit number is your account.
Your bank statement lists your account number near the top, often labeled "Account Number" or "Account #". Online banking portals display it in your account settings or account summary section. Some banks show it on your debit card's back or front, though others do not print it there for security reasons. If you cannot find it anywhere, a phone call to your bank's customer service takes less than five minutes.
Why the difference matters when sending money
The routing number tells the banking system which bank to contact. The account number tells that bank which account within their system should receive or send the money. Without the routing number, the system does not know where to look. Without the account number, the bank receives the instruction but cannot complete it. Both are required for direct deposit, wire transfers, automatic bill payments, and ACH transfers.
If you provide only the routing number, your payment will bounce or be rejected. If you provide only the account number, the receiving bank cannot process it. This is why forms always ask for both, and why it matters to double-check that you have copied them correctly — a single wrong digit can send money to the wrong account or delay it for days while the bank tries to sort out where it belongs.
How to verify you have the right number
The safest way to verify is to use two sources. Check your paper checks against your online banking portal, or compare your statement against your bank's app. If all three sources show the same account number, you have the right one. If you see different numbers, contact your bank immediately — this is rare but can happen if you have multiple accounts or if there is an error in one of the systems.
When you are about to use your account number for something important — like setting up direct deposit for a tax refund or insurance payment — read it aloud to yourself digit by digit before you submit it. This catches most typos. If you are entering it online, copy and paste it rather than typing it by hand whenever possible, since that eliminates transcription errors.
Account numbers and privacy
Your account number should be treated like a password. Do not share it in emails, texts, or over the phone unless you initiated the contact and you are certain you are talking to your bank. Scammers sometimes call claiming to be from a bank and ask for your account number to "verify" your identity — legitimate banks already know your account number and will never ask for it this way.
Your routing number is public information — it is printed on every check you write and is the same for everyone at your bank. Your account number is private. If someone has both your routing number and account number, they can set up unauthorized transfers or payments from your account, which is why you should keep your checks and statements in a secure place and shred old statements before throwing them away.
What to do if you cannot find your account number
Call your bank's customer service number on the back of your debit card or on your most recent statement. Have your Social Security number and a form of ID ready. Tell them you need your account number for a direct deposit or payment setup. They will provide it over the phone and can also email or mail it to you if you prefer a written record.
If you are setting up direct deposit for a tax refund or government payment, you can also contact the agency handling the payment — the IRS, your state tax authority, or your insurance company — and ask them how to find your account number if you do not have it. Many of these agencies have online tools that walk you through locating it on your check or statement.
Frequently Asked Questions
Can someone use my account number to steal money if they do not have my routing number?
It is much harder without your routing number, since they would need to know which bank to contact. However, they could potentially use it along with other information to commit fraud. Treat your account number as sensitive information and do not share it unless you know exactly who is receiving it and why.
Is my account number the same as my debit card number?
No. Your debit card number is printed on the front of your card and is different from your account number. Your account number is what connects to your actual bank account. Some banks print the account number on the back of the card for reference, but the card number itself is separate.
What if I give the wrong account number for a direct deposit or refund?
The payment will either be rejected and returned to the sender, or it will go to the wrong account. If it goes to the wrong account, contact your bank and the organization that sent the payment immediately. They can sometimes recall or redirect it, but the faster you report it, the better your chances of recovery.
Do I need my account number to check my balance online?
No. You log into your bank's website or app with your username and password, and your account information appears automatically. You do not need to enter your account number to view your balance or transactions.