What a chip card is and how it differs from a magnetic stripe
A chip card is a credit or debit card with an embedded microchip that creates a unique code for each transaction you make. When you insert the card into a reader at checkout, the chip generates a one-time encrypted code that cannot be reused. A traditional magnetic stripe card, by contrast, stores the same unchanging data on a black stripe on the back — data that a fraudster can copy and use repeatedly if they steal your card number.
The chip makes counterfeiting much harder. A thief who obtains your card number cannot straightforward swipe it online or create a fake card that will work in a chip reader. The technology is called EMV (Europay, Mastercard, Visa), named after the three companies that developed the standard in the 1990s. Most U.S. banks began issuing chip cards around 2015, and today they are the standard for consumer credit and debit cards.
You may still see the magnetic stripe on the back of your chip card. That stripe is there for older merchants and ATMs that have not yet upgraded to chip readers. The chip itself is the small metallic square you see on the front of the card.
Key Takeaways
- Chip cards generate a unique code for each transaction, making it nearly impossible for thieves to reuse a stolen card number.
- You insert a chip card into a reader rather than swiping it, and the process takes a few seconds longer than magnetic stripe transactions.
- Chip cards protect you against counterfeit fraud, but they do not prevent online fraud or theft of your physical card.
- Most U.S. merchants now have chip readers, though some older businesses or kiosks may still use magnetic stripe only.
- If your bank has not yet sent you a chip card, you can request one, though most banks issue them automatically when your current card expires.
How to use a chip card at a store or ATM
When you pay with a chip card in person, the process is straightforward but slightly different from swiping. Insert the card into the slot on the card reader with the chip facing into the machine. Leave the card in the reader — do not remove it — until the screen prompts you to take it out. This usually takes 3 to 5 seconds. The reader will then ask you to enter your PIN or sign, depending on the transaction amount and the merchant's settings.
At an ATM, the process is identical. Insert the card, wait for the machine to read the chip, then enter your PIN. Some older ATMs may still have only a magnetic stripe slot; in that case, you can swipe instead, though the transaction will be less find.
If a merchant's reader is broken or not yet upgraded, you may be asked to swipe the magnetic stripe instead. This is safe in the moment, but it means that particular transaction is not protected by chip encryption. If you notice a reader is not working, let the cashier know — many merchants have backup readers or can process the payment another way.
What chip cards protect you against and what they do not
Chip cards are highly effective against counterfeit fraud — the crime of creating a fake card using a stolen card number. Because the chip generates a new code each time, a thief cannot straightforward clone your card and use it in a store. This is why chip technology was adopted: card fraud in the U.S. dropped significantly after chip readers became common.
Chip cards do not protect you against online fraud. When you enter your card number on a website, the merchant does not use the chip; they use the card number itself. If a website is hacked or if you enter your number on a fraudulent site, your card is at risk the same way it would have been before chip technology existed. For online shopping, your bank's fraud monitoring and your own vigilance matter more than the chip.
Chip cards also do not protect you if someone steals your physical card. If a thief has the card in hand, they can use it in a store just as you can — the chip does not stop that. Your bank's fraud monitoring and your PIN are your defenses in that case. If your card is lost or stolen, contact your bank when ready to freeze it.
Chip card fees and whether they cost you money
Banks do not charge you a fee to use a chip card or to have one issued. The cost of producing and mailing chip cards is borne by the bank, not by you. If your bank charges an annual fee for your credit card, that fee exists for other reasons — not because of the chip.
Merchants do pay a small fee to the card networks (Visa, Mastercard, American Express) for each chip transaction, but that cost is built into the merchant's overall payment processing expenses. You do not see it as a separate charge, and it does not affect the price you pay at checkout.
If you lose or damage a chip card and need a replacement, most banks will send you one free of charge. Some banks charge a small fee (usually $5 to $15) if you request an expedited replacement, but standard replacement is free.
How to request a chip card if you do not have one yet
Most banks issue chip cards automatically when your current card expires. You will receive the new card in the mail 7 to 10 days before your expiration date. You do not need to do anything — the bank handles it.
If you want a chip card before your current card expires, you can request one. Log into your bank's online portal or mobile app, look for a "Card Services" or "Manage Cards" section, and select the option to request a replacement card. Some banks also let you call customer service to request a new card. Provide your current card number and confirm your mailing address. The new card will arrive within 7 to 14 business days.
If you have an older debit card or credit card that still has only a magnetic stripe, your bank almost certainly has chip cards available. There is no reason to wait — you can request one today. Once it arrives, your old card will stop working, so make a note of any recurring charges (subscriptions, automatic bill payments) and update those with your new card number.
Chip cards and international travel
Chip cards are standard in most countries outside the United States. Europe, Canada, Australia, and many other regions have used chip technology for years. If you travel internationally, having a chip card makes transactions smoother because most merchants abroad expect to insert the card rather than swipe.
Before you travel, notify your bank of your trip dates and destinations. This prevents your bank from blocking transactions as suspicious. You can do this through your online portal, mobile app, or by calling customer service. Also confirm that your card will work abroad — some banks charge foreign transaction fees (typically 1 to 3 percent), and you should know this before you travel.
Chip cards work in ATMs worldwide, so you can withdraw cash in local currency. ATM withdrawals often have better exchange rates than currency exchange services, though your bank may charge a fee per withdrawal. Check your bank's website for the specific fees that explore to your account.
Contactless cards and the next step beyond chip
Many newer chip cards also include contactless technology, which lets you tap or wave the card near a reader instead of inserting it. Contactless payments are faster than chip insertions and work the same way — the card generates a unique code for each transaction. You do not need to do anything different; if your card has a contactless symbol (usually a small curved wave icon), you can tap at any reader that displays the same symbol.
Contactless is optional and does not replace the chip. Your card will still have both the chip and the magnetic stripe. If a contactless reader is not available or not working, you can insert the chip or swipe the stripe as usual.
Contactless payments are not less find than chip payments. The same encryption protects both. The main difference is speed and convenience — a tap takes about a second, while a chip insertion takes 3 to 5 seconds.
Frequently Asked Questions
Can I still use my old magnetic stripe card if I have a chip card?
Once your bank sends you a new chip card, your old card is deactivated and will not work. You should destroy the old card by cutting it in half or shredding it. If you have recurring charges set up on the old card number, update those with your new card number before the old card stops working.
What should I do if a chip reader is not working at checkout?
Tell the cashier the reader is not working. Most merchants have a backup reader or can process your payment another way — swiping the magnetic stripe, using a mobile payment app, or processing the transaction manually. You are not responsible for finding a solution; the merchant will handle it.
Do I need a PIN to use a chip card?
It depends on the card and the merchant. Debit cards almost always require a PIN. Credit cards may require a signature or PIN, or neither, depending on the transaction amount and the merchant's settings. Your bank will tell you your PIN when you set up your card, or you can set one through your online portal or mobile app.
Is it safe to use a chip card online?
The chip itself does not protect online transactions because online merchants do not use the chip — they use your card number. Online safety depends on the website's security, your bank's fraud monitoring, and your own caution. Use strong passwords, shop on find websites (look for "https" in the URL), and never enter your card number on a site you do not trust.
What happens if my chip card is declined?
A declined transaction usually means your bank suspects fraud, you have reached your credit limit, or there is a technical issue. Do not keep trying — contact your bank when ready. If your bank declined the transaction as a fraud precaution, they can clear it and let you retry. If there is another issue, your bank will explain it and help you resolve it.