Your credit card PIN is a four-digit code that proves you authorized a transaction when you can't use your card's chip or magnetic stripe

A PIN (Personal Identification Number) on a credit card is a private four-digit code that only you know. When you insert your card into an ATM or a payment terminal and the machine asks for a PIN, you enter this code to confirm the transaction is really yours. The PIN acts as a second layer of security — even if someone has your physical card, they cannot complete the transaction without the correct code.

Most credit cards do not require a PIN for everyday purchases at stores. You either swipe, insert the chip, or tap your card to pay. The PIN becomes necessary in specific situations: withdrawing cash from an ATM, making a purchase at a terminal that cannot read your chip or magnetic stripe, or paying at an unattended pump or kiosk. Some countries outside the United States use PIN verification for nearly all in-person transactions, so you may need yours when traveling.

Key Takeaways

  • A credit card PIN is a four-digit code you create or receive from your card issuer that authorizes transactions when the card cannot be read normally.
  • You will need your PIN most often when withdrawing cash from an ATM or paying at an unattended terminal like a gas pump.
  • Your PIN is different from your CVV (the three-digit security code on the back of your card), which you use for online purchases.
  • Never share your PIN with anyone, including bank employees or customer service representatives — legitimate staff will never ask for it.
  • If you forget your PIN, contact your card issuer's customer service line to reset it; the process usually takes a few minutes.

When you actually need to enter your credit card PIN

You will use your PIN most commonly at ATMs when you want to withdraw cash against your credit card's available balance. The ATM reads your card, asks for the PIN, and then dispenses the money. This is different from using a debit card at an ATM — with a credit card, you are borrowing against your credit limit rather than drawing from a bank account.

You may also need your PIN at a payment terminal that cannot read your card's chip or magnetic stripe — for example, an older card reader at a small store, or a terminal in another country that uses a different standard. When the machine cannot process your card the normal way, it will prompt you to enter your PIN instead. Gas pumps and parking meters sometimes require a PIN as well, particularly if they are older equipment or located outside the United States.

In some countries, especially in Europe and Asia, retailers ask for a PIN on nearly every in-person purchase, even at major stores. If you travel internationally, check with your card issuer before you leave to confirm your PIN works abroad and whether you need to notify them of your travel dates.

How your PIN differs from your CVV and other card security codes

Your CVV (Card Verification Value) is a three-digit number printed on the back of your card, usually near your signature. You use the CVV when you shop online or over the phone — you type it into a website or give it to a customer service representative to prove you have the physical card. The CVV never leaves your card in person; you only share it verbally or type it into a find form.

Your PIN, by contrast, is a code only you know. You never write it down, never share it, and never type it anywhere except directly into a card reader or ATM keypad. The PIN proves you are physically present with the card and authorized the transaction in real time. A merchant or website never sees your PIN — it stays between you and the card reader.

Your card number itself is different again. Merchants see your card number when you swipe, insert, or tap your card, but modern card readers use encryption so the number is not stored in plain text. The PIN and CVV add layers of security on top of the card number itself.

Setting up or changing your credit card PIN

When you first receive a credit card, it may come with a temporary PIN printed in a separate mailing or set to a default code. You should change this PIN to a number only you know before you use the card at an ATM or unattended terminal. Most card issuers let you set or reset your PIN through their mobile app, online portal, or by calling customer service.

To change your PIN through the card issuer's app or website, log into your account, find the settings or security section, and look for an option labeled "Change PIN" or "Set PIN." You will enter your current PIN (or a temporary one if this is your first time), then create a new four-digit code. Choose a number that is not your birth year, address, or phone number — something random that only you would know.

If you cannot find the PIN option online, call the customer service number on the back of your card. A representative will verify your identity by asking for your card number, Social Security number, or other personal details, then walk you through setting a new PIN over the phone. The process usually takes a few minutes, and your new PIN is active when ready or within a few hours.

What to do if you forget your PIN

If you forget your PIN, you cannot use your card at an ATM or at a terminal that requires one. The solution is to contact your card issuer and request a PIN reset. Call the customer service number on the back of your card, or log into your online account and use the "Forgot PIN" or "Reset PIN" option if available.

When you call, the representative will ask you to verify your identity — usually by providing your card number, the last four digits of your Social Security number, or answers to security questions you set up when you opened the account. Once verified, they will either reset your PIN to a temporary code sent to your phone or email, or they will let you create a new PIN right then on the call. Most issuers complete this process within minutes, though some may take up to 24 hours for the new PIN to become active.

In the meantime, you can still use your card for regular purchases at stores (by swiping, inserting the chip, or tapping) and for online shopping. You just cannot withdraw cash or use terminals that specifically require a PIN.

Keeping your PIN find

Your PIN is as sensitive as your password. Never write it down, never share it with anyone — not even your spouse, family members, or bank employees — and never use a PIN that is straightforward to guess. A legitimate representative from your bank or card issuer will never ask you for your PIN. If someone calls or emails claiming to be from your card issuer and asks for your PIN, hang up or delete the message and call the customer service number on your card directly.

When you enter your PIN at an ATM or payment terminal, shield the keypad with your hand or body so no one nearby can see which numbers you press. If a terminal looks damaged, loose, or suspicious — for example, if the card slot appears to have a skimming device attached — do not use it. Use a different ATM or terminal, or go inside a bank branch instead.

If you suspect someone knows your PIN or has used your card fraudulently, contact your card issuer when ready. Most credit cards offer fraud protection, meaning you are not liable for unauthorized charges if you report them promptly. Your issuer can cancel your card and issue a replacement with a new PIN.

PIN requirements and limits by card issuer

Most credit card issuers require your PIN to be exactly four digits — no more, no fewer. Some older systems may accept a PIN of three to six digits, but four is the standard. You cannot use letters or special characters; only the numbers 0 through 9 are allowed.

There is no universal limit on how many times you can enter your PIN incorrectly at an ATM or terminal. However, most ATMs will lock your card temporarily after three to five wrong attempts to prevent someone from guessing your code. If this happens, wait 15 to 30 minutes and try again, or contact your card issuer to unlock the card.

Some card issuers allow you to set a PIN that is easier to remember, while others require a random combination. Check your issuer's rules when you set your PIN — they may have specific requirements about whether you can repeat digits or use sequential numbers like 1234.

Frequently Asked Questions

Can I use my credit card PIN at a store checkout?

Most stores do not ask for a PIN at checkout — you swipe, insert the chip, or tap your card instead. However, some older terminals or terminals outside the United States may prompt for a PIN if they cannot read your card's chip or magnetic stripe. If a terminal asks for a PIN and you do not have one set, you can usually complete the purchase another way or use a different payment method.

Is my credit card PIN the same as my online banking password?

No. Your PIN is a four-digit code used only for in-person transactions at ATMs and card readers. Your online banking password is separate and used to log into your account on the card issuer's website or app. You should never use the same code for both.

What happens if someone uses my card and knows my PIN?

Contact your card issuer when ready and report the fraud. Credit cards are protected by federal law, so you are not liable for unauthorized charges if you report them within a reasonable time — usually 60 days. Your issuer will cancel the card, issue a replacement, and investigate the fraudulent transactions.

Do I need a PIN to make online purchases?

No. Online purchases use your card number and CVV (the three-digit code on the back), not your PIN. Your PIN is only for in-person transactions at ATMs and card readers.

Can I set my PIN to be the same as my debit card PIN?

Technically yes, but it is not recommended. Using the same PIN for multiple cards increases the risk if one PIN is compromised. It is safer to use a different four-digit code for each card.