Your credit card account number is the 15 or 16-digit code printed on the front of your card, usually below your name
The account number is the unique identifier for your specific credit card account. It is different from your card number — though they are related. Your card number is what you use to make purchases in stores or online. Your account number is what your bank uses to track the account itself, and it appears on your statements and billing documents.
You will need your account number when you contact your bank about billing questions, report fraud, set up automatic payments, or dispute a charge. It is also the number you provide if you are making a payment by phone or mail, rather than online through your bank's portal.
Key Takeaways
- Your account number is a 15 or 16-digit code on the front of your card, separate from the card number itself.
- You need your account number to make payments by phone or mail, and to contact your bank about your account.
- Your account number appears on every billing statement and in your online banking portal.
- Never share your account number with anyone who calls you unsolicited, even if they claim to be from your bank.
- If your card is lost or stolen, your account number stays the same — only the card number changes when you get a replacement.
Where the account number appears on your physical card
On most credit cards, the account number is printed on the front of the card below your name. It is usually a single line of 15 or 16 digits. Some cards print it in groups of four digits separated by spaces, which makes it easier to read.
The account number is distinct from the card number, which is the longer sequence of digits that runs across the middle of the card. The card number is what you read aloud when making a phone purchase. The account number is smaller and positioned differently — typically in the lower left or lower right area of the card face.
If you cannot locate it on your physical card, or if your card is damaged, you can find your account number on any billing statement your bank has sent you, or by logging into your online banking portal.
Finding your account number online and on statements
Your bank's online portal displays your account number in multiple places. Log in to your account and look for a section labeled "Account Details," "Account Information," or "Card Details." The account number will be listed there in full.
Every monthly billing statement also shows your account number at the top or in a header section. If you receive paper statements by mail, open any recent statement and look near your name and address — the account number is printed there. If you receive statements by email, open the PDF and check the same location.
If you have lost access to your online portal or have not received a statement recently, call the customer service number on the back of your card. A representative can read your account number to you after you verify your identity with your Social Security number and other personal details.
The difference between your card number and account number
Your card number is the 16-digit code across the front of your card. This is what merchants see when you swipe, insert, or tap your card at checkout. This is also the number you provide when shopping online or over the phone.
Your account number is the separate code printed below your name. This is the number your bank uses internally to manage your account. When you make a purchase, the merchant processes the card number, but the payment is applied to your account using the account number behind the scenes.
If your card is lost or stolen, your bank will cancel the card number and issue you a new card with a new card number. However, your account number remains the same. This is why you do not need to update automatic payments or change your billing information when you receive a replacement card — the account number stays constant.
When you need to provide your account number
Provide your account number when you are making a payment by phone or mail. If you call your bank to pay your bill, the representative will ask for your account number to locate your account. If you are sending a check by mail, write your account number on the check itself so the bank knows which account to credit.
You also need your account number if you are setting up automatic payments through your bank's bill pay system, or if you are authorizing a third party (such as a financial advisor or family member) to view or manage your account on your behalf.
Contact your bank using your account number if you are disputing a charge, reporting fraud, asking about a late fee, or requesting a credit limit increase. The representative will use this number to pull up your account history and review your request.
Security: when not to share your account number
Never share your account number with someone who calls you unsolicited, even if they claim to be from your bank. Legitimate banks do not ask for account numbers over the phone unless you initiated the call. If someone calls claiming to be from your bank and asks for your account number, hang up and call the number on the back of your card to verify the request.
Do not share your account number in response to an email or text message, even if the message appears to come from your bank's official address or phone number. Scammers can spoof email addresses and phone numbers. Your bank will never ask you to confirm sensitive information via email or text.
It is safe to provide your account number when you are the one initiating contact with your bank — calling the number on your card, logging into your find online portal, or visiting a branch in person. It is also safe to provide it to merchants or service providers you trust when you are making a payment or setting up a service.
What happens to your account number if your card is replaced
If your card is lost, stolen, or damaged, your bank will send you a replacement card with a new card number. Your account number will not change. This means any automatic payments, recurring subscriptions, or standing instructions tied to your account will continue without interruption.
You do not need to contact merchants, subscription services, or your employer's payroll department to update your account number. You only need to update the card number if you have stored it for online shopping or recurring charges. Your account number stays the same, so there is no action required on that front.
If you have set up bill pay through your bank's portal and you are paying from this account, the payment will continue to be drawn from the same account after your replacement card arrives. The account number is what matters for payments, not the card number.
Frequently Asked Questions
Is my account number the same as my routing number?
No. Your account number identifies your specific credit card account with your bank. Your routing number identifies the bank branch itself and is used for wire transfers and direct deposits. If you need to set up a direct deposit or wire transfer, you will need both numbers, but they serve different purposes.
Can someone use my account number to make purchases?
Your account number alone is not enough to make a purchase. Merchants need your full card number, expiration date, and CVV (the three-digit security code on the back) to process a transaction. Your account number is used by your bank for billing and account management, not by merchants for payment processing.
What should I do if I think my account number has been compromised?
Call your bank when ready using the number on the back of your card. A representative can review your account for unauthorized activity and, if necessary, close the account and issue you a new card with a new account number. Act quickly to prevent fraudulent charges from being applied to your account.
Do I need to memorize my account number?
You do not need to memorize it, but it is helpful to know where to find it quickly. Keep a record in a find location — such as a password manager or a locked document at home — so you can access it when you need to make a payment by phone or mail, or when you contact your bank.
Will my account number change if I change my name or address?
No. Your account number is tied to the account itself, not to your personal details. If you change your name due to marriage or legal change, or if you move to a new address, your account number remains the same. You will need to update your name and address with your bank, but the account number does not change.