Your checking account number is printed on the bottom left of every check you write, and also appears in your bank's online portal and mobile app.
The easiest place to look is a blank check from your checkbook. The account number is the middle set of digits on the bottom of the check, usually 10 to 12 numbers long. It sits between your routing number (on the left) and the check number (on the right).
If you don't have checks handy, log into your bank's website or open the mobile app. Most banks display your account number on the account overview page, sometimes labeled "Account Number" or "Checking Account." You can also call your bank's customer service line — they'll verify your identity and read it to you over the phone.
Some banks print the account number on your debit card, usually on the back or in the fine print on the front. Your monthly bank statement also lists it, either at the top of the page or in a section labeled "Account Information."
Key Takeaways
- The account number appears on the bottom left of any check you have, as the middle set of digits between the routing number and check number.
- Your bank's website, mobile app, and monthly statements all display your account number without requiring a phone call.
- Customer service can read your account number to you after confirming your identity, which takes a few minutes.
- Some debit cards print the account number on the back or in small text on the front, though not all banks do this.
Finding it in your online banking portal
Log into your bank's website using your username and password. Most banks show your account number on the main dashboard or "Accounts" page as soon as you sign in. Look for a section that lists your checking account with details like balance and recent activity — the account number is usually displayed there in full.
If you don't see it on the main page, click on the specific checking account to view account details. A page will open showing the full account number, routing number, and other information. Some banks hide the full number by default for security and require you to click "Show" or "Reveal" to display all digits.
Using your mobile banking app
Open your bank's mobile app and navigate to the account overview or dashboard. Tap on your checking account to view details. The account number should appear on the account details screen, sometimes alongside the routing number and other account information.
If the number is partially hidden for security, look for an eye icon or "Show" button to reveal the full account number. Some apps display it only when you tap a specific section labeled "Account Details" or "Account Information."
Checking your paper statements and debit card
Your most recent bank statement lists your account number near the top, usually in a section labeled "Account Information" or "Your Account." The number appears in full on the statement, so you can write it down or take a photo for reference.
If your debit card prints the account number, it's typically on the back in small text or on the front below the card number. Not all banks include it on the card, so don't assume it's there — check the back first, then look at the front if needed.
Calling your bank directly
Call the customer service number on the back of your debit card or on your bank's website. Have your Social Security number, date of birth, and a form of identification ready. The representative will verify your identity by asking security questions, then read your account number to you.
This method takes about five to ten minutes but is useful if you need the number immediately and don't have access to checks, statements, or online banking. Some banks also allow you to request the information through secure email or message within your online portal.
What to do if you can't locate it
If you've checked your checks, statements, and online banking and still can't find the number, contact your bank by phone or visit a branch in person. Bring a photo ID so they can verify your identity and provide the account number. This is rare — the number is almost always visible in at least one of the standard places.
If you recently opened the account and haven't received checks yet, the online portal or mobile app is your fastest option. New accounts are set up in the system immediately, so your account number is available to view online before physical checks arrive in the mail.
Frequently Asked Questions
Is my account number the same as my debit card number?
No. Your debit card number and account number are different. The debit card number is printed on the front of the card and is used for purchases and ATM withdrawals. Your account number is used for bank transfers, direct deposits, and setting up automatic payments.
Can I share my account number with anyone?
Yes, it's generally safe to share your account number with people who need it for legitimate reasons — like your employer for direct deposit, a creditor for payment, or someone sending you a wire transfer. The account number alone cannot be used to withdraw money without your routing number and other verification. Never share your PIN or online banking password.
What if my account number changes?
Your account number does not change under normal circumstances. It stays the same for the life of the account. If your bank merges with another bank or you close and reopen an account, you may receive a new number, but this is rare and the bank will notify you in writing.
Do I need both my routing number and account number?
For most banking transactions like direct deposit or wire transfers, yes — you need both. The routing number identifies your bank, and the account number identifies your specific account within that bank. Some transactions require only the account number, but having both is standard practice.