Signing the back of your credit card is an important security step for protecting your cardâs information if it should fall into the wrong hands. Merchants are supposed to check that the signature on the card matches the signature on the sales receipt as a security precaution. If a card has no signature on the back, they arenât required to process the ensuing payment.
Should You Sign the Back of Your Credit Card?
Signing the back of your credit card is always better than not, without exception. Itâs another step provided by your credit card company to try and keep your personal information as safe as possible. When used in conjunction with the card verification value (CVV) on your card, it creates a line of defense should a fraudster try to swipe your plastic.
While the signature itself doesnât protect you, the ability for a salesman to match it to your existing official signatures is where its value lies. This is done most commonly with your driverâs license, or if youâre abroad, your passport is a fine stand-in. In other words, taking a few seconds to sign that little black or white strip could be the difference between your identity being stolen and not.
Hereâs a look at how the major credit payment networks handle unsigned cards:
Mastercard urges merchants in its payment network not to accept charges from customers with unsigned credit cards. On the back of every Mastercard, it even says ânot valid unless signed.â
The company tries to instill in merchants that they should not process customer transactions unless the customerâs signature appears in the signature space on the back of the card.
If the card has no signature, merchants are to request the customer sign the card. A merchant also will need to see a confirming form of identification.
At Visa, merchants must verify that the signature on the back of any card matches the customerâs signature on the transaction receipt and any identification. They want to know you are who you say you are and recreating the same signature on demand when you sign for a credit card transaction is one way to do it.
Visa considers an unsigned credit card to be invalid. The words âNot Valid Without Signatureâ appear above, below or beside the signature panel on all Visa cards. Turn over the card and youâll see it. And like Mastercard, Visa urges merchants not to accept unsigned credit cards.
When a customer presents an unsigned Visa card to a merchant for payment, Visa requires a merchant to check the customerâs identification by requesting a government-issued form of ID.
Where permissible by state law, the Visa merchant may also write the customerâs ID serial number and expiration date on the sales receipt. (Beginning in California in 1971, the recording of personal information during credit card transactions has become illegal, with the passage of the Song-Beverly Credit Card Act.)
Visa also instructs merchants to ask the customer to sign the card, within full view of the merchant. They then check that the customerâs newly written signature on the credit card matches the signature on the customerâs ID. If a customer refuses to sign a Visa card, the card is considered invalid and cannot be processed. Merchants will then be forced to ask the customer for another form of payment.
Discover keeps things very simple. The company urges its cardholders to sign the backs of their Discover cards as soon as they activate them. This is because the signature makes the card valid and a cashier may decline the transaction if the card is not signed.
American Express also urges retailers to compare a customerâs signature on the back of an American Express card with the transaction sales receipt. And if an American Express card is presented unsigned, the clerk is to request a photo ID of the customer with a signature. Following this, they must request the customer sign the back of the American Express card and the sales receipt while the clerk is holding on to the customerâs photo ID.
Writing âSee IDâ on a Credit Card
Writing âsee IDâ or âcheck IDâ on a credit card might seem like a great way to protect from fraud. But it actually may invalidate the card. This is because only your valid signature that a merchant can match with a signature on a sales receipt is acceptable. In some cases, the merchant may ask you for another card to make your purchase. To save yourself from a slower-than-needed transaction at the cash register, sign your credit card as intended.
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