Your checking account number is on the bottom left of your checks, in your bank's mobile app, and on your monthly statement

The easiest place to look is the bottom of any check you have. The account number appears after the routing number and before the check number. If you don't have checks handy, log into your bank's website or mobile app — your account number is usually visible on the account overview or dashboard. Your monthly bank statement also lists it, either on the front page or in the account information section.

If you've lost access to all three, call your bank's customer service number on the back of your debit card or on your bank's website. Have your Social Security number and a form of ID ready. The bank will verify your identity and read the account number to you over the phone.

Key Takeaways

  • Your checking account number appears on the bottom left of any check, after the routing number and before the check number.
  • You can find it instantly by logging into your bank's app or website and looking at your account overview or dashboard.
  • Your monthly statement lists the account number in the account information section, usually on the first page.
  • If you can't locate it through these methods, call your bank's customer service line with your ID and Social Security number ready.

Finding it on a physical check

Look at the bottom of any check. You'll see three sets of numbers separated by vertical lines. The first set is the routing number (nine digits). The second set is your account number (usually 10 to 12 digits). The third set is the check number.

The account number is the middle group. Write it down exactly as it appears — include any leading zeros. If you only have old checks from years ago, the account number may have changed if you closed and reopened the account, so verify it through another method before using it.

Finding it in your bank's app or website

Open your bank's mobile app or go to the website and log in. Look for a section labeled "Account Overview," "Account Details," "My Accounts," or "Account Information." Your checking account number should appear prominently on this page, often next to the account type and current balance.

Some banks display only the last four digits by default for security. If you see this, look for a "Show Full Account Number" button or link. You may need to verify your identity again before the full number displays. Once you see it, you can copy it or take a screenshot for your records.

Finding it on your monthly statement

Open your most recent bank statement, whether you receive it by mail or download it from your bank's website. The account number is usually printed near the top of the statement, in a section labeled "Account Information" or "Your Account Details." It may also appear in the header next to your name and address.

If you receive statements electronically, log into your bank's website, go to "Statements" or "Documents," and download the most recent one. The account number format on the statement matches what appears on your checks and in the app.

Calling your bank to get the number

Find the customer service phone number on the back of your debit card or on your bank's official website. Call during business hours and tell the representative you need your checking account number. They will ask you to verify your identity — be ready with your Social Security number, date of birth, and possibly a photo ID or answers to security questions you set up when you opened the account.

Once verified, the representative will read your account number to you. Ask them to spell it out or repeat it so you write it down correctly. Some banks also offer to email or text it to you, though this depends on their security policies.

What to do if you can't find it anywhere

If you've checked your checks, app, and statement and still can't locate the number, your account may have been closed or merged. Contact your bank directly to confirm the account is still active. If you recently switched banks, your new account number is different from your old one — use only the number associated with your current bank.

If you're trying to find the account number for a joint account or an account held in someone else's name, you'll need permission from the account holder. Banks will not release account information to anyone but the account owner or an authorized representative.

Why you need your account number and where to use it

Your account number is required for direct deposits, wire transfers, automatic bill payments, and setting up transfers between accounts. You'll also need it when you contact your bank about a specific transaction or account issue. Some employers ask for it to set up payroll direct deposit. Utilities and subscription services need it to withdraw payments automatically.

Keep your account number private like you would a password. Don't share it in emails or texts, and don't post it on social media. If you're giving it to a business you trust — your employer, your utility company, your bank — that's generally safe. If someone you don't know asks for it, verify they work for the organization they claim to represent before sharing.

Frequently Asked Questions

Is my account number the same as my routing number?

No. Your routing number identifies your bank (nine digits), and your account number identifies your specific account at that bank (usually 10 to 12 digits). Both appear on the bottom of your checks, but they are separate numbers. You need both for direct deposits and wire transfers.

Can someone access my account if they have my account number?

Your account number alone is not enough to withdraw money or transfer funds. A person would also need your routing number, PIN, or online banking password. However, keep your account number private anyway — it's one piece of information that could be combined with other data to commit fraud.

What if my account number changed?

Account numbers can change if you close your account and reopen it, or if your bank merges with another bank. If this happened, your old checks are no longer valid. Use your new account number for all future transactions. Your bank will send you new checks automatically or you can order them through your online banking portal.

Do I need my account number to check my balance?

No. You can check your balance by logging into your bank's app or website with just your username and password, or by calling your bank's automated phone line. You only need your account number when you're setting up a transaction that involves another person or organization.