Credit cards are financial tools that, for many, are an essential payment method. Credit cards let you borrow money from a bank or lender up to a set limit to make purchases, pay bills, or access cash advances. But unlike debit cards, which draw directly from your checking account, credit cards let you borrow first and pay later, often with flexibility if you pay your balance on time.
At their core, credit cards are a form of revolving credit—meaning you can continue to borrow up to your credit limit as long as you repay what you owe. Where things can get dicey is if you overextend your credit beyond what you can cover each month. This guide will walk you through the basics, so you can understand how to use them responsibly.
Applying for a credit card
Getting a credit card is a pretty straightforward process. You just submit an application to an issuer like a bank or credit union. Typically, the issuer will review your credit score, credit history, income, and other financial details. They’ll assess your credit risk level and determine:
- If you should be approved for a credit card
- Your maximum credit limit
- The Annual Percentage Rate (APR) you’ll be charged
Approval depends largely on your creditworthiness. The stronger your credit score, the more likely it is that you’ll get better terms and a higher limit.
Pro tip: Pre-qualification offers often use a soft credit check, which doesn’t impact your credit score. If you aren’t pre-qualified, your application may result in a hard inquiry that could appear on your credit report and briefly drop your score.
Making purchases and billing cycles
Once you’ve been approved and activate your credit card, you can begin to use it in person or online. When you charge a purchase, the issuer pays the merchant on your behalf. Each purchase is added to your balance, up to your credit limit.
At the end of your billing cycle (usually every month), you’ll get a statement showing:
- Your total balance
- Minimum payment due
- Payment due date
- Interest and fees (if any)
How interest and fees work
Interest is a charge assessed to you for borrowing money. If you pay the balance in full by the due date, you usually don’t pay any interest on your purchases. This is called the grace period. When applying for a card, you should look at the interest rate, but also consider the APR. The APR is typically more than the interest rate because it includes your interest percentage, but it also includes any additional fees that the card may carry that you will be responsible for covering over the course of the year.
Common credit card fees include:
- Annual fee: A yearly cost for having the card (some cards have none).
- Balance transfer fee: Charged when you move debt from another card.
- Cash advance fee: Charged for borrowing cash with your card.
- Late payment fee: Charged if you miss your payment due date.
- Foreign transaction fee: Charged for purchases outside the U.S.
Tip: Paying your balance in full every month helps you avoid interest charges and keeps fees to a minimum.
Types of credit cards
Credit cards come in various forms depending on your financial goals. The most common types include:
- Rewards cards that earn cash back, points, or travel miles for purchases.
- Secured cards that often require a security deposit and are great for building or rebuilding credit.
- Unsecured cards, the most common type of card, don’t require a deposit and sets credit limits based on your creditworthiness.
- Balance transfer cards which often offer low intro APRs to help you pay down debt.
- Low-interest cards that are designed to reduce interest costs if you carry a balance.
Each type has benefits and trade-offs, so choose based on your spending habits and goals.
How credit cards impact your credit score
Credit cards don’t just let you borrow. They also help build your credit history. Responsible use can increase your credit score by:
- Making payments on time
- Keeping balances low relative to your limit
- Maintaining active accounts in good standing
Late payments or consistently high balances can harm your score. Delinquent payments can stay on your credit report for up to 7 years, so it’s very important to make your regular payments.
Credit cards vs. debit cards
While credit cards let you borrow money and build credit, debit cards draw funds directly from your checking account. You can usually use a debit card like a credit card, but you won’t have a bill to pay at the end of the month or need to worry about the charges impacting your score.
Both cards can offer fraud protection, and each may also include perks such as rewards, bonuses, or travel benefits.
Should you get a credit card?
Credit cards can be powerful tools for convenience, security, rewards, and building credit—as long as they’re used responsibly. Remember, when you apply for a credit card, it often comes with a hard credit pull. So, it’s a good idea to shop around for the right card before you take that credit score hit. Compare each card’s interest rates, annual fees, rewards structures, credit requirements, and APR, then apply for the card that makes the most sense for you.
Once you find the card that fits your needs, use these guidelines to get the most value from it:
- Pay your balance in full every month
- Stay below your credit limit
- Pay at least the minimum on time
- Watch out for fees and interest charges
- Choose cards with rewards that match your lifestyle
Smart use can help you avoid debt, improve your credit score, and unlock valuable rewards like cash back and travel perks. Understanding how credit cards work empowers you to choose the right card for your financial life and use it strategically for long-term success.
This article is for educational purposes only and is not intended to provide financial, tax or legal advice. You should consult a professional for specific advice. Best Egg is not responsible for the information contained in third-party sites cited or hyperlinked in this article. Best Egg is not responsible for, and does not provide or endorse third party products, services or other third-party content.
