By Ben Luthi
Edited by Michelle TipswordWhat Is a Credit Card and How Does It Work?
By Ben LuthiEdited by Michelle Tipsword
Quick Answer
- A credit card is a revolving line of credit you can use, pay off and use again.
- You can borrow up to your credit limit and repay later, with interest if you carry a balance.
- Credit cards can build credit and offer rewards, perks and fraud protection.
A credit card is a revolving line of credit that you can use, pay off and use again. When you handle it well, a credit card can be one of the most useful payment tools you own, and you can take advantage of many of its benefits without ever paying interest.
Whether you're applying for your first card or you simply want a clearer picture of how credit cards work, here's what you need to know about what they are, the types of cards available and how to choose one that fits you.
What Is a Credit Card?
A credit card is a payment card you can use to make purchases online and in person. When you pay with one, you're authorizing the card issuer to cover the purchase on your behalf, with a promise to pay that amount back at a later date.
Beyond everyday purchases, many credit cards come with extra features such as rewards, introductory annual percentage rate (APR) promotions, travel perks and insurance protections.
Debit Card vs. Credit Card
A debit card and a credit card can look almost identical, and both let you pay without carrying cash, but they pull from very different places.
A debit card draws on money you already have in a linked checking account, so you're spending your own funds rather than borrowing. A credit card lets you borrow from the card issuer up to a set limit and pay the balance back later.
Here's a deeper look at some of the differences between the two payment methods:
| Debit Card | Credit Card | |
|---|---|---|
| Source of funds | Money from your linked checking account | Borrowed from the issuer up to a credit limit |
| Interest and fees | No interest since you're spending your own money, though overdraft fees may apply | Interest applies if you carry a balance, and credit cards can have annual and other fees |
| Fraud protection | Your potential liability grows the longer you wait to report fraud, though many offer zero liability fraud protection | Your potential liability for unauthorized charges is federally capped at $50, though many offer zero liability fraud protection |
| Credit score impact | Typically none | Activity is reported to the credit bureaus, where it can help or hurt your credit |
Learn more: Credit Card vs. Debit Card: How Are They Different?
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See all our best credit cards for 2026.
How Do Credit Cards Work?
Credit cards let you borrow money to pay for a purchase now and repay the balance later. They're a form of revolving credit, which means you can borrow up to a set credit limit, pay down what you owe and borrow again as your available credit frees back up.
Each purchase adds to your balance and lowers your available credit, and each payment raises it again. You can keep using the card as long as you stay within your limit, but if you don't pay your balance in full each month, the issuer charges interest on whatever is left over.
Common Credit Card Terms
If you're new to credit cards or a casual user, you may run into some unfamiliar terms. Here's a quick summary of the most common credit card terms you'll come across:
| Annual fee | A yearly charge for owning some cards. Annual fees are common on travel rewards cards and cards for borrowers with poor or fair credit. |
| Annual percentage rate (APR) | The APR is the same as your interest rate and is typically variable, so it can move with market rates. The headline APR is usually the rate for purchases (as opposed to cash advance or penalty rates, which are usually higher). |
| Balance transfer | Involves moving debt from one credit card to another one, often to take advantage of a lower APR. |
| Balance transfer fee | A balance transfer fee is a charge issuers often apply when you move a balance, and is usually 3% to 5% of the amount transferred. |
| Balance transfer APR | This is the interest rate that applies to balance transfers. While it's typically the same as the card's purchase APR, it doesn't qualify for a grace period. |
| Billing cycle | The roughly month-long stretch between your statement dates, at the end of which your issuer calculates the new balance you need to repay. |
| Cash advance | A feature that lets you access part of your credit limit as a cash withdrawal, usually at an ATM or a bank branch. |
| Cash advance APR | The rate that applies only to cash advances, typically higher than the purchase APR and without a grace period. |
| Credit limit | The most you can spend on the account. Once you reach your credit limit, your issuer may decline further charges until you pay some of the balance down. |
| Credit utilization rate | How much of your available credit you're using at a given time. You can calculate your utilization rate by dividing your balance by your credit limit, and it's an influential credit score factor. |
| Grace period | The window between your statement closing date and due date. Paying in full during this time helps you avoid interest, and a grace period, if offered, must be at least 21 days. |
| Introductory APR | Some cards offer an introductory APR on purchases or balance transfers that can be as low as 0%. |
| Late payment fee | Your card issuer may charge a late fee if you don't pay your minimum amount due by your monthly due date. |
| Minimum payment | The smallest amount you need to pay each month to keep a positive payment history, usually a small percentage of your balance. |
| Penalty APR | Once you're 60 days late on a payment, your card issuer may institute a penalty APR that's higher than your purchase APR and can remain in place for six months or longer. |
| Statement balance | Your statement balance is the total you owe at the end of a billing cycle, made up of that cycle's purchases plus any unpaid balances, interest and fees. |
What Information Appears on a Credit Card?
Physical credit cards include several features that help identify the cardholder and the issuer and keep your transactions running smoothly. Common elements include:
- Issuer logo: The logo of the company that issued the card, such as Capital One or Chase, is printed on the front or back.
- Payment network logo: While your credit relationship is with the card issuer, your charges run through one of the four major payment networks, so you'll see an American Express, Discover, Mastercard or Visa logo.
- EMV chip: The EMV chip on the front stores encrypted data that lets you make in-person purchases more securely.
- Contactless symbol: A Wi-Fi-like icon that signals you can tap your card against a compatible reader instead of swiping or inserting it.
- Magnetic stripe: The stripe on the back stores your card information, though less securely than the EMV chip.
- Your name and account number: Both appear on the card, and the first digit of the number signals the network, so a 3 is American Express, a 4 is Visa, a 5 is Mastercard, and a 6 is Discover.
- Expiration date: The month and year when the card stops working. Your issuer will send a replacement card before this date.
- CVV code: Short for card verification value, it's a three-digit number on the back of Discover, Mastercard and Visa cards, or a four-digit number on the front of American Express cards.
- Customer service phone number: The number on the back you can call with questions or problems.
- Signature box: A field on the back of the card where cardholders are encouraged to sign their name; some cards no longer have one.
Types of Credit Cards
There are several types of credit cards, each with its own mix of features. Here's a quick look at the most common ones.
Rewards Credit Card
A rewards credit card returns value as cash back, points or miles on your everyday purchases, and may also add welcome bonuses and other perks. Some are issued with an airline or hotel brand, so you earn rewards with that partner.
Learn more: What Is a Rewards Credit Card?
Balance Transfer Credit Card
A balance transfer credit card lets you move a balance from another card and pay it down, often with a 0% intro APR promotion that lasts up to 21 months. The trade-off is an upfront transfer fee of 3% to 5% of the amount. Some cards also offer an intro 0% APR on new purchases or rewards.
Learn more: What Is a Balance Transfer and How Does It Work?
0% Intro APR Credit Card
These cards offer introductory 0% APR promotions on new purchases, with periods that run up to 21 months, depending on the card. Some 0% intro APR credit cards also include rewards and welcome bonuses, which makes them a strong choice for large expenses you plan to pay off over time.
Learn more: How Do 0% Intro APR Credit Cards Work?
Secured Credit Card
Designed for borrowers with poor, limited or no credit, secured credit cards require an upfront deposit, typically at least $200 and generally equal to your credit limit. With responsible use, you can build a positive credit history and may get your deposit back without closing the account.
Learn more: What Is a Secured Credit Card?
Student Credit Card
Tailored to college students, student credit cards let eligible borrowers who are new to credit establish a credit history and possibly earn rewards, all without a security deposit.
Learn more: How to Get a Student Credit Card
Store Credit Card
Also called retail cards, store credit cards are issued in partnership with individual retailers and may offer specific rewards when you shop there. Most can only be used at the co-branded store, though some let you use the account anywhere.
Learn more: Pros and Cons of Store Credit Cards
Business Credit Card
A business credit card comes with rewards and perks tailored to small business owners. It also tends to have a larger credit limit than a personal card and may help you establish a business credit history.
Learn more: Pros and Cons of Business Credit Cards
Pros and Cons of Credit Cards
Credit cards can be a powerful tool when you use them well, but they carry risks worth understanding first. Here's a look at the main upsides and downsides.
Pros
-
Easier spending tracking: Every purchase shows up on your statement and in your issuer's app, so it's simple to see where your money goes and spot anything unfamiliar.
-
Rewards on everyday purchases: Many cards earn cash back, points or miles, so spending you'd do anyway can return real value over time.
-
More convenient and secure than cash: You can pay almost anywhere, and federal law and issuer policies limit your liability for unauthorized use.
-
A way to build credit: When you pay on time and keep balances low, that responsible use is reported to the credit bureaus and can strengthen your credit.
-
Interest you can avoid: Pay your statement balance in full each month and you generally won't owe interest, which lets you enjoy a card's perks at no borrowing cost.
-
Added benefits and protections: Depending on the card, you may get extras such as travel perks, purchase protection or extended warranties.
Cons
-
Fees can add up: Annual fees, late fees and other charges vary from card to card, and they can quietly chip away at the value you're getting.
-
Interest can get expensive: Credit card APRs tend to run high, so carrying a balance from one month to the next can potentially cost you more than the purchase did.
-
Approval isn't guaranteed: Issuers weigh your credit, income and other factors, and the exact requirements aren't always clear before you apply.
-
Credit damage from misuse: Late payments and high balances are reported to the credit bureaus, so careless use can pull your credit down rather than build it up.
-
Variable rates can rise: Most card APRs are variable, so your rate can climb when market rates go up, even if you've done nothing differently.
-
Minimum payments can be costly:Paying only the minimum keeps your account current, but interest keeps building on the rest, which can stretch a small balance into long-lasting debt.
Should You Get a Credit Card?
Whether to get a credit card depends on your situation and your financial goals. Here are some situations where applying can make sense:
- You want to build or maintain a good credit score.
- You're working within a budget and expect to pay your balance in full every month.
- You want to earn cash back, points or miles on your everyday purchases along with other perks.
- You want the added security and fraud protections that credit cards provide.
On the other hand, it may not make sense if you struggle with overspending or you're worried that having a card would tempt you to spend more than you can repay.
Consider Becoming an Authorized User
If you're not quite ready for a card of your own, consider asking a loved one to add you as an authorized user on their account. As long as they've used it responsibly, that history can help build your own credit profile.
You'll also receive a card tied to the account that you can use for purchases. Keep in mind that only the primary cardholder is responsible for payments, so you'd need to arrange to cover whatever you charge.
Learn more: Will Being an Authorized User Help My Credit?
How to Choose a Credit Card
Picking the right credit card can feel daunting, but it's worth taking your time to find the best fit rather than grabbing the first option you like. Here are some steps that can help:
- Check your credit score. There are cards available across the credit spectrum, but your options may be narrower if your credit needs work. Register with Experian to get free access to your FICO® ScoreΘ and credit report so you know where you stand.
- Look at your spending habits. If you're considering a rewards card, review your recent expenses to see where most of your money goes. Some rewards cards offer bonus rewards in certain categories, while others offer a flat rate on everything.
- Determine what you want in a card. If you're after rewards, decide which currency you want, whether that's cash back, points or miles. Also weigh features such as a 0% intro APR promotion, travel benefits or brand-specific perks.
- Shop around. Once you know what you're looking for, research cards that match your credit profile. With good or excellent credit—usually a FICO® Score of 670 or above—you'll have a broad selection, while a lower score leaves you with fewer choices for now.
Once you settle on a card, you can typically apply through the lender's website, over the phone or sometimes in person at a local bank or credit union branch.
Learn more: What to Consider When Choosing a New Credit Card
How to Get a Credit Card for the First Time
If you're looking for your first credit card, you may have fewer options than someone with an established history—but good choices still exist. Here's how to find them:
- Choose the best type of card for you. If you're a college student, a student card may fit better than a secured card because it doesn't require a deposit. If you can't qualify for one, a debit-credit hybrid card may require a deposit but offers added flexibility.
- Compare card features. Starter credit cards don't usually come with a lot of bells and whistles, but you can still compare rewards rates, interest rates and other basics that add value.
- Avoid high fees. Some cards marketed to people with poor or no credit charge steep fees, and while they're easy to get, plenty of options skip the annual fee and offer more reasonable APRs. Steer clear of cards with monthly fees or upfront processing fees.
- Prepare to develop good credit habits. Your first card likely won't have a high limit, so use it sparingly to keep your credit utilization rate low, and pay your balance on time and in full to build credit while avoiding interest.
Tip: Set up automatic payments for at least the minimum due so you never miss a due date, then pay the full statement balance when you can to avoid interest.
Learn more: An Essential Guide to Your First Credit Card
What to Do if Your Credit Card Application Is Denied
If you've been denied a credit card, it helps to understand why and improve your odds before you apply again. Here's what to do:
- Review the adverse action notice. You should receive an adverse action letter explaining the reasons for your denial, which gives you a starting point for figuring out how to proceed.
- Check your credit reports. If the denial was credit-related, review your reports to pinpoint areas you can address. You can register with Experian to get free access to your Experian credit report anytime, and get weekly reports for free from all three credit bureaus (Experian, TransUnion and Equifax) at AnnualCreditReport.com.
- Determine your next steps. Once you understand your situation, decide on the best path toward approval. If your score is low, you might apply for a card that better matches your profile, take steps to improve your credit or work on increasing your income. You also have the right to dispute credit report information you believe is inaccurate.
Learn more: Does Getting Denied Credit Affect Your Credit Scores?
Frequently Asked Questions
The Bottom Line
A credit card can be a valuable tool for building credit, earning rewards and protecting your purchases, as long as you pay on time and avoid carrying a balance you can't afford. The key is choosing one that fits your credit profile and spending habits, then using it with a plan.
If you're not sure where to start, Experian's credit card comparison platform can help you find credit cards matched to your credit profile for free, so you can conveniently browse your options and apply with more confidence.
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About the author
Ben Luthi
Ben Luthi has worked in financial planning, banking and auto finance, and writes about all aspects of money. His work has appeared in Time, Success, USA Today, Credit Karma, NerdWallet, Wirecutter and more.
Read more from Ben