Where to find your account number

Your checking account number is printed on the bottom left of every check you receive from your bank. It is the middle set of numbers between two colons — typically 10 to 12 digits long. If you do not have checks, you can find this same number in three other places: your bank statement (usually on the first page), your online banking portal (under account details or account summary), or by calling your bank's customer service line.

The fastest way is usually your online account. Log in, look for a section called "Account Information," "Account Details," or "My Accounts," and your account number will be listed there alongside your account type (checking, savings, money market) and current balance. If you cannot find it online, your most recent paper statement will have it printed at the top or bottom of the page.

Key Takeaways

  • Your checking account number appears on the bottom left of your checks, in your online banking portal, on your bank statement, or by calling your bank.
  • The account number is the middle set of digits between two colons on a check — not the routing number on the left or the check number on the right.
  • You can verify your account number by comparing it across two sources (a check and your statement, for example) to make sure you have copied it correctly.
  • If you need your account number for a payment or transfer, always double-check it against your statement or online account before submitting it.

How to tell your account number apart from other numbers on a check

A check has three different sets of numbers on the bottom, and it is straightforward to mix them up. The first set on the far left is your routing number — this identifies your specific bank branch. The middle set is your account number. The third set on the far right is your check number — this is just the number printed on that particular check and changes with each check you write.

The routing number is usually 9 digits. Your account number is usually 10 to 12 digits. Your check number is usually 3 to 4 digits and is also printed in the top right corner of the check. If you are setting up a direct deposit or automatic payment, you will need both your routing number and your account number — but not your check number.

Verifying your account number before you use it

Before you give your account number to an employer, a utility company, or anyone else, verify it against at least two sources. The easiest way is to compare your check against your online account or your most recent bank statement. Write down the account number from your check, then log into your bank's website and look at the account details section. If both numbers match exactly, you have the right number.

If you notice a difference, do not use the number yet. Call your bank's customer service number (on the back of your debit card or on your statement) and ask them to confirm your account number over the phone. Banks have security questions they will ask you to verify your identity before they give out this information, so be ready to answer questions about your account history or recent transactions.

What to do if you cannot find your account number

If you do not have checks and cannot access your online account, calling your bank is the fastest option. Have your debit card and a form of identification ready. When you call, you will reach a customer service representative or an automated system. Tell them you need to confirm your checking account number. They will ask you to verify your identity — usually by providing your Social Security number, date of birth, or the last four digits of your debit card.

Some banks also allow you to look up your account number through their mobile app if you have one downloaded. Open the app, log in, and navigate to "Account Information" or "My Accounts." The account number is usually displayed prominently on that screen. If your bank offers this, it is often faster than calling, especially if you are doing this outside of business hours.

Common mistakes when copying your account number

The most common mistake is copying the routing number or check number by accident. Remember: the routing number is on the far left, the account number is in the middle, and the check number is on the far right. Another frequent error is misreading similar-looking digits — the number 0 (zero) can look like the letter O, and the number 1 (one) can look like the letter I or the number l (lowercase L). When you write down your account number, double-check each digit.

If you are copying your account number from a check, make sure you are reading it left to right and not skipping any digits. Account numbers can be 10, 11, or 12 digits depending on your bank — there is no standard length. If you have copied a number that seems too short or too long compared to what you see on your statement, stop and verify it again before submitting it anywhere.

When you need your account number versus your routing number

You need your account number when you are setting up direct deposit, making an electronic transfer between banks, paying a bill by check or online, or authorizing an automatic payment to a company. You need your routing number when you are receiving money from an employer or government agency (like tax refunds or Social Security), or when you are transferring money from another bank into your account.

Many forms ask for both numbers. If a form asks for "account and routing number," fill in the routing number first (the 9-digit number on the left of your check) and then your account number (the longer number in the middle). If you are unsure which number goes in which blank, look for small print or a note on the form that explains what each field needs, or call the organization and ask them to clarify.

Frequently Asked Questions

Is my account number the same as my debit card number?

No. Your debit card number is a 16-digit number printed on the front of your card. Your account number is a separate number (usually 10 to 12 digits) that is tied to your checking account. They are linked to the same account, but they are different numbers. Never use your debit card number when someone asks for your account number.

Can I use a screenshot of my account number from my phone, or do I need to write it down?

A screenshot is fine for your own records, but when you are submitting your account number to someone else, type it out fresh or read it aloud to confirm. This reduces the chance of accidentally copying a number wrong from the screenshot. If you are filling out a form online, type the number directly rather than copying and pasting from a screenshot, as this helps you catch typos.

What if my bank statement shows a different account number than my check?

This should not happen, but if it does, call your bank when ready. It could mean you are looking at the wrong account (if you have multiple accounts with the bank), or there could be an error. Do not use either number until you have spoken to your bank and confirmed which one is correct.

Do I need to memorize my account number?

No. Write it down and keep it in a safe place, or store it in a password-protected note on your phone. You do not need to memorize it. However, it is helpful to recognize it when you see it so you can spot errors when you are filling out forms or setting up payments.