Your account number is printed on the bottom left of your checks, in your bank's mobile app, and on statements your bank mails or emails to you

The easiest place to look is a check from your checking account. Open the checkbook and look at the bottom of any check. You will see a series of numbers printed in magnetic ink. The account number is the middle set of digits — typically 10 to 12 numbers long, though this varies by bank. It sits between the routing number on the left and the check number on the right.

If you do not have checks or prefer not to dig through a drawer, your bank's website or mobile app will show your account number. Log in, navigate to your account details or account summary, and the number will be displayed there. Some banks label it "Account Number," while others call it "Account ID" or straightforward list it under account information.

Paper statements also contain your account number. If your bank still mails statements, it appears near the top of the first page, usually next to your name and address. If you receive statements by email, the number is in the same location in the PDF.

Key Takeaways

  • Your account number appears on the bottom of any check you write, positioned between the routing number and the check number.
  • Logging into your bank's website or app and viewing your account details will show your account number without needing to write a check.
  • Mailed or emailed bank statements display your account number at the top of the document, next to your name.
  • Account numbers are typically 10 to 12 digits, but the exact length depends on your bank.

Finding your number in online banking

Most banks make this straightforward. After you log in to your account, look for a section labeled "Account Details," "Account Information," or "My Accounts." The account number is usually displayed prominently on this page, often alongside your account type (checking or savings) and current balance.

Some banks require one extra click. You may need to select the specific account first — if you have multiple accounts with the same bank — and then view details. The mobile app typically works the same way: tap the account, then look for a details or information button.

If you cannot find it online, call your bank's customer service number. It is printed on the back of your debit card or on your bank's website. Have your Social Security number and a form of ID ready. A representative can read your account number to you over the phone.

Reading the numbers on a check

The bottom of a check contains three separate numbers, and it matters which one you use. From left to right, you see the routing number, then the account number, then the check number. The routing number identifies your bank. The account number identifies your specific account at that bank. The check number is just a sequential label for that particular check and is not used for transfers or direct deposits.

The numbers are printed in a special magnetic ink called MICR (Magnetic Ink Character Recognition). This allows bank machines to read them automatically during processing. The account number is always the longest of the three sets of digits on the bottom line.

What to do if you cannot locate it

If you have no checks, no access to online banking, and no recent statements, contact your bank directly. Call the number on your debit card or search for your bank's customer service line on their website. You will need to verify your identity — typically with your Social Security number, date of birth, and the last four digits of your card or a recent transaction amount.

Some banks also allow you to request account information by visiting a branch in person. Bring a government-issued ID. A teller can print or write down your account number for you on the spot.

Account numbers for different account types

Each account you hold at a bank has its own account number. If you have both a checking account and a savings account at the same bank, they have different account numbers. Your money market account, if you have one, also has a separate number. This matters when you are setting up direct deposits or transfers — you need to use the correct account number for the account where you want the money to go.

Some banks issue the same account number to linked accounts (like a checking account and its overdraft protection savings account), but this is not standard. When in doubt, verify with your bank which account number belongs to which account.

Keeping your account number find

Your account number is not as sensitive as your PIN or password, but it is still information you should not share carelessly. Someone with your account number and routing number can set up transfers out of your account if they also have access to your online banking login or can convince your bank they are you.

It is safe to give your account number and routing number to your employer for direct deposit, to your landlord for rent payments, or to a utility company for automatic bill pay. These are standard, legitimate uses. Do not share your account number with someone who contacts you unexpectedly by phone or email, even if they claim to be from your bank.

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 set of digits (usually 10 to 12) that identifies your account at the bank. They are linked, but they are not the same number.

Can I use my account number to make online purchases?

No. Online purchases require your debit card number, expiration date, and CVV (the three-digit security code on the back). Your account number is not used for card transactions. It is used for bank-to-bank transfers, direct deposits, and bill payments.

What if I see multiple account numbers listed in my online banking?

You likely have multiple accounts at the bank — for example, a checking account and a savings account. Each one has its own account number. Make sure you are using the correct number for the transaction you are making. If you are unsure which number belongs to which account, the account type is usually labeled next to the number.

Do I need my account number to set up direct deposit?

Yes. Your employer or the organization sending you money will ask for your account number and routing number. These two pieces of information tell the sending bank exactly where to deposit your money. Without the correct account number, the deposit may go to the wrong account or be rejected.