What Is a Credit Card and How Does It Work?
Quick Answer
A credit card is a revolving line of credit that you can use, pay off and use again. Credit cards may also offer various benefits, including rewards, insurance, fraud protection and more.

A credit card is a type of credit that allows you to borrow money, repay it and borrow again. When used wisely, a credit card can be one of the most effective financial payment tools available, and it's possible to enjoy many of the benefits credit cards offer without paying interest.
If you're considering a credit card, here's what you need to know.
What Is a Credit Card?
A credit card is a payment card that you can use to make purchases online and at the point of sale. When you use a credit card to pay for goods or services, you authorize the credit card company to make the purchase for you, with the promise to pay the exact amount back at a later date.
Credit cards may also come with various features, such as rewards, APR promotions, travel perks and insurance protections.
How Do Credit Cards Work?
Credit cards work by allowing you to borrow money to pay for a purchase now, then repay the balance later. They're a type of revolving credit. That means they allow you to borrow up to a set credit limit, and you can repeatedly borrow and pay off your balance.
When you make a purchase on your credit card, the charge amount is added to your current balance and lowers your available credit. When you make a credit card payment, your available credit increases.
You can continue to use your card as long as you stay within your credit limit. But if you don't pay off your balance in full each month, you could be charged interest—more on this below.
Learn more: How Do Credit Cards Work?
What Information Appears on a Credit Card?

Physical credit cards have several features that help identify the cardholder and card issuer, along with other details to facilitate seamless transactions. Elements include:
- Issuer logo: The credit card issuer's logo may be on the front or the back of the credit card—think Capital One or Chase.
- Payment network logo: While your credit relationship is with the card issuer, your charges are processed by one of the four major payment networks. As such, you'll see an American Express, Discover, Mastercard or Visa logo on the front or back of the card.
- EMV chip: The EMV chip, which you'll find on the front of the card, stores encrypted credit card data, allowing you to make point-of-sale purchases more securely.
- Contactless symbol: Some credit cards use short-range wireless technology to allow you to tap your card to a compatible card reader instead of swiping or inserting it. The symbol looks similar to a Wi-Fi symbol, and you'll find it on the front or back of the card if your card has this feature.
- Magnetic stripe: On the back of the credit card, you'll find its magnetic strip, which stores your credit card information, albeit less securely than the EMV chip.
- Your name and account number: Your name as it appears on your credit card application appears on the front or back of the card, as well as your account number. If you're unsure which payment network your card runs on, look at the first figure of your card number. If it's a three, it's an American Express card; if it's a four, it's a Visa card; if it's a five, it's a Mastercard card; and if it's a six, it's a Discover card.
- Expiration date: Your card expiration date shows merchants the month and year when your credit card is no longer usable. Before the expiration date, your card issuer will send you a new card. It may be on the front or back of the card.
- CVV code: Short for card verification value, it'll be a three-digit number on the back of the card if you have a Discover, Mastercard or Visa card. If you have an American Express card, it's a four-digit number on the front of the card.
- Customer service phone number: The card issuer provides a customer service number on the back of the credit card, which you can call if you have questions or a problem to resolve.
- Signature box: Credit cards include a field where cardholders are encouraged to sign their name.
Types of Credit Cards
There are several different types of credit cards you can choose from, each with its own set of features. Here's a quick summary of each one.
Rewards Credit Card
A rewards credit card offers value in the form of cash back, points or miles on your everyday purchases. In some cases, it may also offer welcome bonuses and other perks. Some rewards credit cards are issued in partnership with an airline or hotel brand, allowing you to earn rewards and benefits with the co-branded partner.
Learn more: What Is a Rewards Credit Card?
Balance Transfer Credit Card
A balance transfer credit card allows you to move a balance from another credit card and pay it down, often with an introductory 0% APR promotion. Depending on the card, the promotional period can last anywhere from 12 to 21 months. The caveat is that you typically have to pay an upfront balance transfer fee of 3% to 5% of the transferred amount. Some balance transfer cards also offer a 0% APR promotion on new purchases, and some even come with rewards.
Learn more: What is a Balance Transfer and How Does It Work?
0% Intro APR Credit Card
These credit cards offer introductory 0% APR promotions on new purchases made with your card. Promotional periods can last anywhere between six and 21 months, depending on which card you choose. In some cases, 0% intro APR credit cards also offer rewards and welcome bonuses, making them a great choice for large expenses you need to pay down over time.
Learn more: How Do Intro 0% APR Credit Cards Work?
Secured Credit Card
Designed for borrowers with poor, limited or no credit, secured credit cards require an upfront security deposit to get approved—typically a minimum of $200 and generally equal to your credit limit. With responsible use, you can build a positive credit history and, in some cases, you can get your deposit back without needing to close your account. However, some card issuers may require you to close your account to get a deposit refund.
Learn more: What Is a Secured Credit Card?
Student Credit Card
Tailored to college students, student credit cards allow eligible borrowers who are new to credit to establish their credit history and possibly even earn rewards and other benefits without a security deposit.
Learn more: How to Get a Student Credit Card
Store Credit Card
Also called a retail credit card, store credit cards are issued in partnership with individual retailers and may offer specific rewards and benefits when you shop with the co-branded retailer. While most retail credit cards can only be used with the co-branded retailer, some allow you to use your account anywhere.
Learn more: Pros and Cons of Store Credit Cards
Business Credit Card
A business credit card usually comes with rewards and perks tailored to small business owners. This type of card also usually has a larger credit limit compared to a personal credit card, and it may also help you establish a business credit history.
Learn more: Pros and Cons of Business Credit Cards
Best credit cards of 2026
Compare cards from our partners with intro bonuses, cash back or points offers, and annual fees as low as $0.
Offers from our partners
Blue Cash Everyday® Card from American Express
Intro bonus:You may be eligible for as high as $200 cash back after spending $2,000 in purchases on your new Card in the first 6 months. Welcome offers vary and you may not be eligible for an offer. Cash back is received as Reward Dollars, redeemable for statement credit or at Amazon.com checkout. Terms Apply.
Intro APR:0% on Purchases and Balance Transfers for 15 months
Ongoing APR:19.49%-28.49% Variable
Rewards:1% - 3% (cash back)
Annual Fee:$0
Wells Fargo Reflect® Card
Intro APR:0% intro APR for 21 months from account opening on purchases and qualifying balance transfers
Ongoing APR:17.49%, 23.99%, or 28.24% Variable APR
Rewards:N/A*
Annual Fee:$0
Discover it® Chrome
Intro bonus:INTRO OFFER: Unlimited Cashback Match for all new cardmembers. Discover will automatically match all the cash back you’ve earned at the end of your first year! There’s no minimum spending or maximum rewards.
Intro APR:0% intro APR for 6 Months on Purchases and 0% intro APR for 18 Months on Balance Transfers
Ongoing APR:17.49% - 26.49% Variable APR
Rewards:1% - 2% (cash back)
Annual Fee:$0
Revel® Platinum Mastercard®
Ongoing APR:35.90% Fixed
Rewards:N/A*
Annual Fee:$75 - $125
Citi® Diamond Preferred® Card
Intro APR:0% for 21 months on Balance Transfers and 12 months on Purchases
Ongoing APR:16.49% - 27.24% (Variable)
Rewards:N/A*
Annual Fee:$0
FIT™ Platinum Mastercard® - $400 Credit Limit
Ongoing APR:35.90% Fixed
Rewards:N/A*
Annual Fee:$99 first year; $125 thereafter
The opensky® Secured Visa® Credit Card
Ongoing APR:23.89% Variable
Rewards:10% (cash back)
Annual Fee:$35
Credit One Bank American Express® Card for Rebuilding Credit
Ongoing APR:29.74% Variable
Rewards:1% (cash back)
Annual Fee:$75 First year. $99 thereafter, billed monthly at $8.25
Blue Cash Preferred® Card from American Express
Intro bonus:You may be eligible for as high as $300 cash back after spending $3,000 in purchases on your new Card in the first 6 months. Welcome offers vary and you may not be eligible for an offer. Cash back is received as Reward Dollars, redeemable for statement credit or at Amazon.com checkout. Terms Apply.
Intro APR:0% on Purchases and Balance Transfers for 12 months
Ongoing APR:19.49%-28.49% Variable
Rewards:1% - 6% (cash back)
Annual Fee:$0 intro annual fee for the first year, then $95.
American Airlines AAdvantage® MileUp® Card
Intro APR:0% for 15 months on Balance Transfers
Ongoing APR:19.49% - 29.49% (Variable)
Rewards:2x (Miles per dollar)
Annual Fee:$0
Costco Anywhere Visa® Card by Citi
Ongoing APR:18.74% - 26.74% (Variable)
Rewards:1% - 5% (cash back)
Annual Fee:$0
American Express® Gold Card
Intro bonus:You may be eligible for as high as 100,000 Membership Rewards® Points after spending $6,000 in eligible purchases on your new Card in your first 6 months of Membership. Welcome offers vary and you may not be eligible for an offer.
Ongoing APR:See Pay Over Time APR
Rewards:1x - 4x (Points per dollar)
Annual Fee:$325
First Latitude Secured Mastercard® Cash Back Rewards
Ongoing APR:27.49% Variable
Rewards:1% - 10% (cash back)
Annual Fee:$0
Citi® / AAdvantage® Platinum Select® World Elite Mastercard®
Ongoing APR:19.49% - 29.49% (Variable)
Rewards:2x (Miles per dollar)
Annual Fee:$99, waived for first 12 months
Citi® / AAdvantage® Globe™ Mastercard®
Ongoing APR:19.49% - 29.49% (Variable)
Rewards:1x - 6x (Miles per dollar)
Annual Fee:$350















