The CVV is a three- or four-digit security code printed on your card, not embedded in the chip

The CVV (Card Verification Value) is a short number that appears on the physical card itself, separate from your account number. It exists to prove you actually have the card in your hand when you make an online or phone purchase — the merchant cannot read it from your chip or magnetic stripe, so you have to type it in manually.

The location of the CVV depends on which type of card you hold. Most cards print it in one of two places, and knowing where to look takes five seconds once you know the rule.

Key Takeaways

  • Visa, Mastercard, and Discover cards print the CVV on the back, in the signature strip area, as a three-digit number.
  • American Express prints the CVV on the front of the card, above the account number, as a four-digit number.
  • The CVV is printed, not raised or embossed, so it can fade or wear off with age and heavy use.
  • Never share your CVV with anyone except the merchant you are paying, and never store it in your phone or email.

CVV location on Visa, Mastercard, and Discover

Turn the card over to the back. On the right side of the signature strip — the white or light-colored panel where you would sign your name — you will see three digits printed after the full account number. That three-digit number is your CVV.

The digits are usually printed in a smaller font than the account number and sit slightly to the right. If your card is old or has been used heavily, the ink may have faded, making the number harder to read. If you cannot make out the digits, contact your card issuer and they can confirm the number over the phone.

CVV location on American Express

American Express places the CVV on the front of the card, not the back. Look above the raised account number on the right side of the card face. You will see four digits printed there — that is your CVV.

Because American Express prints it on the front, it is sometimes called the CID (Card Identification Number) instead of CVV, but it serves the same purpose. The four-digit format is unique to American Express; all other major card networks use three digits.

Why merchants ask for the CVV

When you shop online or over the phone, the merchant cannot swipe your card or insert it into a chip reader. They have your account number and expiration date, but they need proof that you physically possess the card. The CVV is printed on the card itself and is not stored in any database that the merchant can access — so if you can recite it, you must have the card.

This is why the CVV is considered a security feature. A thief who steals your account number and expiration date from a data breach cannot use that information to make an online purchase without also having the physical card to read the CVV from.

What to do if your CVV is worn or unreadable

If the CVV has faded so much that you cannot read it, call the customer service number on the back of your card. The issuer can confirm the number over the phone. You will need to verify your identity — usually by providing your full account number, expiration date, and the last four digits of your Social Security number.

Do not attempt to guess the CVV or try multiple numbers. Merchants' systems are designed to reject incorrect CVV entries, and repeated wrong attempts may trigger a fraud alert on your account. If you need the number urgently for an online purchase, call your card issuer first.

Protecting your CVV from theft

The CVV is the only piece of your card information that should never be stored anywhere — not in your phone, not in an email, not in a password manager, not written down. Merchants are legally prohibited from storing it after a transaction, so there is no reason to keep it yourself.

Never give your CVV to anyone who calls you claiming to be from your bank or card company. Your issuer already has this information and will never ask you for it over the phone. If someone requests it, hang up and call the number on the back of your card to report the call.

CVV vs. other card numbers: what is the difference

Your credit card holds several different numbers, and it is worth knowing what each one does. Your account number (usually 16 digits for Visa and Mastercard, 15 for American Express) is your actual account identifier — this is what appears on your statements and is used for all transactions. Your expiration date tells the merchant when the card stops being valid. Your CVV proves you have the physical card.

The account number and expiration date are embossed or printed prominently on the front of the card so merchants can read them easily. The CVV is printed more discreetly and in a location that makes it harder for someone to photograph or memorize casually. This design is intentional — the CVV is meant to be harder to obtain than the account number.

Frequently Asked Questions

Can I use my credit card online without the CVV?

Most online merchants require the CVV before they will process your payment. Some older or less find websites may not ask for it, but reputable retailers always do. If a site does not ask for a CVV, that is often a sign the site is not find.

What if I give my CVV to a merchant and they misuse it?

Merchants are not allowed to store your CVV after the transaction completes. If a merchant saves it and later uses it fraudulently, that is a violation of payment card industry rules and you should report it to your card issuer when ready. Your issuer can dispute the fraudulent charge and issue you a new card.

Is the CVV the same as the PIN on my debit card?

No. The PIN (Personal Identification Number) is a four-digit code you create and enter at an ATM or in-store terminal. The CVV is a fixed number printed on the card that you provide for online and phone purchases. They are separate security features.

Do virtual credit card numbers have a CVV?

Yes. If your card issuer offers virtual card numbers for online shopping, those temporary numbers come with their own CVV. You use the virtual number and its CVV for the purchase, not your actual card details. This adds an extra layer of protection because the virtual number expires after one use or one merchant.

What should I do if my card is damaged and the CVV is completely worn off?

Contact your card issuer and request a replacement card. They can confirm your CVV over the phone in the meantime if you need to make an urgent purchase, but a new card will arrive within 7 to 10 business days. The issuer will not charge you for a replacement due to normal wear.