Your bank account number and checking account number are usually the same thing
When you open a checking account at a bank, you receive one account number for that specific account. That number is your checking account number. Banks do not issue separate "bank account numbers" — the term "bank account number" is just a general way of referring to the account number for any account you hold at that bank, whether it is checking, savings, or money market.
The confusion often comes from the fact that banks use two separate numbers to identify your account when you send or receive money: your routing number (which identifies the bank itself) and your account number (which identifies your specific account within that bank). Together, these two numbers tell the financial system exactly where your money should go.
If you have multiple accounts at the same bank — say, a checking account and a savings account — each one has its own account number. But each account number is still just called an "account number," not a "checking account number" or "savings account number," even though the type of account is different.
Key Takeaways
- Your checking account number is the account number for your checking account; there is no separate "bank account number" category.
- You need both your routing number and your account number to receive money via direct deposit or wire transfer.
- If you have multiple accounts at the same bank, each one has its own unique account number.
- Your account number appears on the bottom left of your checks, right after the routing number.
Where to find your account number
Your checking account number is printed on the bottom left of every check you receive. It appears after the routing number (which comes first) and before the check number (which comes last). The order is always: routing number, account number, check number.
You can also find your account number by logging into your bank's website or mobile app. Most banks display it in the account details or account summary section. If you cannot locate it online, you can call your bank's customer service line or visit a branch in person — they will provide it immediately.
Some banks also print your account number on your debit card, though not all do. If your card does not show it, the check or online banking method will always work.
Why banks use both a routing number and an account number
A routing number identifies which bank you use. It tells the financial system that your money should go to, for example, Chase or Bank of America or a credit union. A routing number is the same for all customers at that bank (or sometimes for all branches of that bank in a region).
Your account number identifies you specifically within that bank. It ensures that when money arrives at your bank, it goes into your account and not someone else's. Without the account number, the bank would know the money is supposed to arrive there, but not where to put it.
When you set up direct deposit at your job, provide payment information to a creditor, or receive a wire transfer, you will need to give both numbers. The routing number gets the money to the right bank; the account number gets it to the right account.
What happens if you give only the account number
If you give someone only your account number without the routing number, the transaction will usually fail or be delayed. The receiving bank or financial institution will not know which bank to send the money to, even though they know which account within that bank should receive it.
For example, if you tell your employer only your account number for direct deposit, payroll will not be able to process it. They need the routing number to know where to send the deposit. The same applies to bill payments, wire transfers, and automatic payments.
Always provide both numbers together when setting up any transaction involving money movement. Most forms that ask for account information will have a field for both the routing number and the account number.
Account numbers at different banks
Account numbers vary in length depending on the bank. Most banks use account numbers between 8 and 17 digits long. There is no standard length across the banking system — each bank chooses how many digits to use for its accounts.
Your account number is unique to you at your bank, but another person at a different bank could have the same account number. That is why the routing number is essential — it distinguishes your bank from all others. The combination of routing number plus account number is what makes your account truly unique across the entire U.S. banking system.
If you move your money to a different bank, your new account number will be different from your old one, even if you are opening the same type of account (checking, savings, etc.). You will need to update your direct deposit information, automatic bill payments, and any other recurring transactions with your new routing and account numbers.
Protecting your account number
Your account number is not as sensitive as your Social Security number or PIN, but you should still treat it with reasonable care. Sharing your account number and routing number with legitimate businesses (your employer, your bank, a utility company) is safe and necessary for transactions to work.
However, do not share your account number with people you do not know or trust, and do not post it on social media or public websites. Scammers can use your account number to attempt unauthorized transactions, though most banks have fraud protections in place to catch these.
If you suspect someone has misused your account number, contact your bank immediately. They can monitor your account for suspicious activity and issue you a new account number if needed, though this will require you to update all your direct deposits and automatic payments.
Frequently Asked Questions
Is my account number the same as my card number?
No. Your debit card or credit card number is different from your account number. The card number is printed on the front of your card and is used for purchases and card transactions. Your account number is used for bank transfers, direct deposits, and wire transfers. Some banks print the account number on the card as well, but they are separate numbers.
Can I use just my account number to receive money?
No, you need both your routing number and your account number. The routing number tells the financial system which bank to send the money to, and the account number tells the bank which account within that bank should receive it. Without the routing number, the transaction will fail.
Do I get a new account number if I change my account type?
If you convert an existing checking account to a savings account or vice versa, you typically keep the same account number. However, if you close one account and open a new one, you will receive a new account number. Check with your bank if you are unsure whether a change will affect your account number.
What if I forgot my account number?
Log into your bank's website or app and look for the account details section — your account number will be displayed there. You can also call your bank's customer service line, visit a branch, or check the bottom left of any check you have written. Your bank can provide it in seconds.
Can someone access my account with just my account number?
Your account number alone is not enough to access your account or withdraw money. A person would also need your PIN, password, or other authentication. However, someone with your account number and routing number could attempt to set up unauthorized transactions, so report any suspicious activity to your bank right away.