Your checking account number is the unique identifier your bank assigns to that specific account
Your checking account number is a string of digits — usually between 8 and 12 numbers — that identifies your individual account at your bank. It is different from your routing number, which identifies the bank itself. You need your account number when you set up direct deposit, arrange wire transfers, pay bills by check, or authorize automatic payments. Your bank prints it on every check you order, and you can find it online through your bank's website or mobile app.
The account number belongs only to you at that bank. If you have multiple checking accounts at the same bank, each one has its own account number. If you move your money to a different bank, your new account will have a different number. The account number stays the same for as long as you keep that account open.
Key Takeaways
- Your checking account number is printed on the bottom left of your checks, right after the routing number.
- You can find your account number by logging into your bank's website or mobile app and viewing your account details.
- Your bank will provide your account number if you call customer service or visit a branch in person.
- Never share your account number with anyone you do not trust, as it can be used to set up unauthorized payments from your account.
Where to find your account number on a check
The bottom of a check contains three sets of numbers in a specific order. On the far left is your routing number (nine digits), followed by your account number in the middle, and the check number on the right. The account number is usually 10 to 12 digits long. If you do not have checks on hand, you can order a new box from your bank or use one of the other methods below.
Some banks print the account number in a different location or format, so if you cannot find it in the standard spot, look at the top right corner of the check or call your bank's customer service line. The routing and account numbers are always printed somewhere on the check — they have to be there for the check to work.
Finding your account number online or through your bank's app
Log into your bank's website or open the mobile app on your phone. Look for a section called "Account Details," "Account Information," or "My Accounts." Your account number will be displayed there, usually alongside your account type (checking or savings) and your current balance. Most banks show the full account number, though some mask it with asterisks for security and only show the last four digits.
If you cannot find the account information section, look for a menu labeled "Settings," "Profile," or "Help." You can also search within the app or website for "account number" — most banking apps have a search function. If you still cannot locate it, the fastest route is to call your bank's customer service number, which is usually on the back of your debit card.
Getting your account number from your bank directly
Call your bank's customer service line and tell them you need your checking account number. They will ask you to verify your identity by providing your name, date of birth, Social Security number, or the last four digits of your Social Security number. Once you are verified, they will read your account number to you over the phone. This usually takes less than five minutes.
You can also visit a branch in person with a photo ID and ask a teller for your account number. They can print it out for you or write it down on a piece of paper. If you do not have a branch nearby or prefer not to go in person, the phone call is the fastest option.
Why you should protect your account number
Your account number, combined with your routing number, allows someone to set up automatic payments from your account or initiate wire transfers without your permission. This is why you should never share your account number with anyone you do not know or trust. Legitimate businesses — your employer, your utility company, your insurance provider — will ask for your account number only when you have initiated the transaction yourself.
If you suspect someone has your account number and may use it without permission, contact your bank immediately. They can monitor your account for suspicious activity and, if needed, close the account and open a new one with a different account number. The sooner you report it, the sooner your bank can protect your money.
The difference between account number and routing number
Your routing number identifies the bank or credit union where your account is held. Your account number identifies your specific account at that bank. You need both pieces of information together to set up direct deposit, arrange a wire transfer, or authorize an automatic payment. The routing number is the same for all customers at that bank branch, but your account number is unique to you.
When you set up direct deposit at work, for example, you will provide both your routing number and your account number. Your employer uses the routing number to find your bank and the account number to find your specific account. If you give only one or give them incorrectly, the deposit will not go through.
What to do if you cannot remember your account number
If you have forgotten your account number and do not have a check or access to your online banking, the simplest step is to call your bank. Have your ID ready and be prepared to answer security questions. Your bank can verify who you are and provide your account number within minutes. This is a routine request and banks handle it many times every day.
If you are in a hurry and need your account number right now, calling is faster than visiting a branch or waiting for mail. If you are setting up direct deposit or making a payment and do not have your account number on hand, most employers and billers will let you come back with it later — you do not have to complete the transaction immediately.
Frequently Asked Questions
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 you use for bank transfers and direct deposit. Your debit card number is what you use to make purchases or withdraw cash at an ATM.
Can someone use my account number to steal money from my account?
Yes, if they also have your routing number, they can set up unauthorized automatic payments or wire transfers. This is why you should not share your account number with strangers. If you suspect fraud, contact your bank right away — they can freeze your account and investigate.
Do I need my account number to check my balance?
No. You can check your balance by logging into your bank's website or app with your username and password, or by calling your bank's automated phone line. You do not need to provide your account number to check your own balance.
What if I have multiple checking accounts at the same bank?
Each account has its own account number. When you set up direct deposit or make a transfer, you need to specify which account number you want the money to go to. Your bank can help you keep track of which number belongs to which account.
Will my account number change if I close my account and reopen it?
Yes. If you close your checking account and later open a new one at the same bank, the new account will have a different account number. The old account number cannot be reused.