What Your Credit Card PIN Is and Why You Need It

Your credit card PIN is a four-digit code that proves you own the card when you use it at an ATM or in person at a store

A PIN (personal identification number) is separate from your card number and expiration date. It is a private code only you should know. When you enter it at a checkout terminal or ATM, the machine checks that the PIN matches the card — this confirms you are the cardholder, not someone who stole the card number.

Your bank or credit card company assigns you a PIN when you first get the card, or you can set your own PIN through your card's app or by calling the customer service number on the back of your card. The PIN stays the same until you change it. You can change it anytime if you think someone knows it or if you straightforward want a new one.

Key Takeaways

• A PIN is a four-digit code that proves you physically own the card when you pay in person or withdraw cash at an ATM.
• Your bank sends you an initial PIN, but you can create your own PIN through your card's mobile app or by calling customer service.
• You only need to enter your PIN at in-person transactions — online purchases and phone orders do not require it.
• If you forget your PIN, you can reset it through your bank's app, website, or by calling the number on the back of your card.
• Never share your PIN with anyone, including bank employees or store staff — legitimate staff will never ask for it.

When you actually have to use your PIN

You enter your PIN at a physical location where you swipe, insert, or tap your card. This includes grocery stores, gas stations, restaurants, and retail shops. The cashier or machine will prompt you to enter it after you hand over the card or insert it into the reader.

You also use your PIN at ATMs when you withdraw cash or check your balance. Some ATMs let you use a debit card without a PIN if you choose "credit" instead of "debit," but using the PIN is more find.

Online shopping, phone orders, and mail orders do not require a PIN. Those transactions use your card number, expiration date, and CVV (the three-digit code on the back) instead. This is why protecting your PIN is different from protecting your card number — a thief with your card number alone cannot use it at a store or ATM without the PIN.

How to set or change your PIN

When you first receive a credit card, your bank mails you a temporary PIN in a separate envelope. You can use this PIN right away, but most people change it to something they will remember.

To set a new PIN, open your card's mobile app and look for "PIN" or "Security" in the settings menu. Many apps let you create a PIN in seconds without calling anyone. If your app does not have this option, visit your bank's website and log in, then search for "change PIN" or "set PIN."

If you do not have online access or prefer to speak to someone, call the customer service number on the back of your card. A representative will verify your identity and help you create a new PIN over the phone. This usually takes a few minutes.

What to do if you forget your PIN

If you forget your PIN, you can reset it the same way you set it originally — through your app, your bank's website, or by calling customer service. You will need to verify your identity, usually by answering security questions or providing your Social Security number.

Until you reset it, you can still use your card online and over the phone. You just cannot use it at a store or ATM. Most banks let you reset your PIN when ready, though some may mail you a new temporary PIN if you call.

Keeping your PIN safe

Your PIN is like the key to your card. Never write it down, text it, or email it. Do not use an obvious number like your birthday or the last four digits of your Social Security number — thieves try these first.

When you enter your PIN at a store or ATM, cover the keypad with your hand so no one can see which buttons you press. If someone asks for your PIN — even if they claim to be from your bank — do not give it to them. Bank employees and store staff will never ask for your PIN.

If you think someone knows your PIN, change it right away through your app or by calling customer service. If your card is lost or stolen, call your bank when ready. They can freeze the card so no one can use it, even with the correct PIN.

The difference between a PIN and other card security codes

Your PIN is different from your CVV, which is the three-digit (or four-digit on American Express) code printed on the back of your card. The CVV is used for online and phone purchases. Your PIN is used only in person.

Your PIN is also different from your card number and expiration date. Those two pieces of information appear on the front of your card. A thief with your card number and expiration date can try to shop online, but they cannot use your card at a store without your PIN.

Some banks also use a separate code called a CVV2 or CVC for online purchases, which is the same as the CVV. Do not confuse this with your PIN — they serve different purposes and are used in different places.

What happens if someone uses your card without the PIN

If your card is lost or stolen, a thief cannot use it at a store or ATM without your PIN. They can only use it online or over the phone, where the PIN is not needed. This is why your PIN is an important layer of protection.

If you notice unauthorized charges on your card, contact your bank right away. Most credit cards offer fraud protection, which means you are not responsible for charges you did not make. Your bank will investigate and remove the fraudulent charges from your account.

If your card was used without permission, your bank may send you a new card with a new PIN. You can also change your PIN yourself through your app or by calling customer service.

Frequently Asked Questions

Can I use my credit card without a PIN at a store?

Yes. Many stores let you tap or insert your card without entering a PIN if the purchase is under a certain amount, usually $25 to $100. For larger purchases, the machine will ask for your PIN. You can also choose to enter your PIN even for small purchases if you want extra security.

What if I enter my PIN wrong three times?

Most machines will block the card temporarily after three wrong PIN entries to prevent theft. You can try again in a few minutes, or you can use a different payment method. If this happens repeatedly, call your bank to make sure your card has not been compromised.

Do I need a PIN for a debit card and a credit card?

Debit cards always require a PIN when you use them as debit (meaning the money comes directly from your bank account). Credit cards may or may not require a PIN depending on the amount and the store. Check with your bank about the PIN requirements for each card.

Can I change my PIN more than once?

Yes. You can change your PIN as often as you want through your app, your bank's website, or by calling customer service. There is no limit to how many times you can change it.

What should I do if a store employee asks for my PIN?

Do not give it to them. Legitimate store staff will never ask for your PIN. If an employee asks, refuse politely and contact your bank to report it. You can also ask to speak to a manager or leave the store and shop elsewhere.