Skip to content

How to Use Credit Cards: 6 Simple Rules to Follow

Updated Sep 09, 2021 | Published Nov 26, 20198 min read

Advertiser Disclosure

Credit Card Insider is an independent, advertising supported website. Credit Card Insider receives compensation from some credit card issuers as advertisers. Advertiser relationships do not affect card ratings or our Editor’s Best Card Picks. Credit Card Insider has not reviewed all available credit card offers in the marketplace. Content is not provided or commissioned by any credit card issuers. Reasonable efforts are made to maintain accurate information, though all credit card information is presented without warranty. When you click on any ‘Apply Now’ button, the most up-to-date terms and conditions, rates, and fee information will be presented by the issuer. Credit Card Insider has partnered with CardRatings for our coverage of credit card products. Credit Card Insider and CardRatings may receive a commission from card issuers. A list of these issuers can be found on our Editorial Guidelines.

At a glance

Credit cards can be fantastic tools. Not only are they secure and convenient, but they can also help you build credit and earn rewards. And, though using credit cards responsibly can be difficult, it’s not complicated; you just need to pay your bills on time and only charge what you can afford to pay off.

Credit Card Insider receives compensation from advertisers whose products may be mentioned on this page. Advertiser relationships do not affect card evaluations. Advertising partners do not edit or endorse our editorial content. Content is accurate to the best of our knowledge when it's published. Learn more in our Editorial Guidelines.

When used correctly, credit cards can be an easy ladder to better credit scores and valuable rewards.

But, when used incorrectly, they can be a direct chute to debt and misery.

Whether you’re a total beginner — or a former credit card holder looking to avoid past mistakes — this article will explain how to properly use a credit card in six easy steps.

  1. Understand How Credit Cards Work
  2. Pay Your Bill On Time
  3. Pay Your Bill in Full
  4. Keep Your Balance Low
  5. Monitor Your Spending
  6. Earn Rewards

1. Understand How Credit Cards Work

Credit cards provide a “revolving” line of credit (as opposed to a non-revolving, static loan like a mortgage).

When you apply for a credit card, the bank looks at a number of factors, including your income, debt, and credit history. It’ll then decide whether to extend you a line of credit — and how much of one. This “credit limit” is the maximum amount you can spend on your card before paying some of it off. 

How swiping a credit card works

How swiping a credit card works. Image credit: Visa

Every time you swipe your card — at a store, hotel, restaurant, or website — you’re borrowing money from the card issuer and using more of your credit limit.

Read more How Does a Credit Card Work? Here’s an Easy-to-Understand Guide and Credit Card Definition
Insider tip

Credit cards are different from debit cards in several ways. Most notably, when you swipe, you’re not withdrawing money from your bank account; you’re borrowing money from the credit card company. That’s why credit cards help you build credit, and also why they can be an easy way to fall into debt.

2. Pay Your Bill On Time

At the end of the month, you’ll receive a credit card bill, which will include the following figures:

  • Statement balance: The amount you spent in the previous billing cycle
  • Current balance: The total amount you’ve charged to your credit card (including the present billing cycle)
  • Minimum payment: The amount you must pay by the due date to avoid late fees
  • Available credit: Your credit limit minus your current balance

screen shot of payment options

The most important rule of responsible credit card use is to pay your bill on time. Late payments, which appear on your credit reports, are a red flag to lenders. And paying late means you’ll also owe late fees and interest.

To ensure you pay your credit card bill on time, set up notifications from within your credit card’s online account. For my credit card, I receive an email both when my statement is issued and when my due date is 10 days away.

While there, you can also set up payments to be automatically withdrawn from your checking account each month. This is a smart move if your bills are consistent and you’re nervous about missing payments (but you should check in to make sure they go through). Personally, I prefer to pay manually, as it gives me an opportunity to review the charges and avoid overdrafting my checking account.

Read more How Paying a Credit Card Works: Understanding Your Credit Card Statement

3. Pay Your Bill in Full

If you’re wondering how to use a credit card wisely, here’s the key.

You probably already know that most credit cards have high interest rates (aka annual percentage rates, or APRs). The average APR is 17%.

What you might not know is that you can avoid paying this interest entirely.

When you receive your first credit card bill, it won’t include any interest charges yet. That’s because almost all credit cards offer an interest-free “grace period” between the date your statement closes and the date your payment’s due. During this period, your purchases will not accrue interest (though cash advances and balance transfers are a different story).

Translation: If you pay the entire statement balance by the due date, you won’t owe any interest on your purchases. If you continue to pay the statement balance in full and on time — each and every month — you’ll never pay any interest at all. 

That’s the secret of every smart credit card holder, because you get all of the perks of credit card usage, including security, rewards, and convenience, without paying a dime in interest.

On the other hand, if you only pay the minimum payment, you’ll rack up finance charges and could end up with a snowball of debt that becomes difficult to pay off.

Read more How to Avoid Paying Interest on Credit Cards
Insider tip

You may have heard you need to carry a balance on your card to build credit. This is a total myth. Pay off your card in full each month, and you’ll see your credit scores rise — at no cost to you.

4. Keep Your Balance Low

Each month, your credit card issuer will probably report your behavior to the three major credit bureaus (most issuers do).

As the bureaus gather information about your credit card use, they will create credit reports for you (if they don’t already have them), which are used to generate credit scores.

Because of this, credit cards are one of the easiest ways to build credit. Making your monthly payments in full and on time will eventually lead to good credit scores, all other things being equal.

Also because of this, you should strive to keep the balance on your credit card low on your statement closing date. Not only does this mean you’ll be able to pay off your balance each month (and thus avoid interest charges), it also means you’ll have a low credit utilization ratio.

This ratio, which represents the percentage of available credit you’re using, is one of the most important factors in your credit scores. You want to keep it as low as possible. 

What’s In Your Credit Score?

This chart shows the criteria used to create FICO scores and their relative importance in your credit score.

If you have a $1,000 limit on your credit card, and you’re carrying a $700 balance at the statement closing date, you’re using 70% of your available credit. That’s not a good look to creditors.

But if you have a $1,000 limit and a credit card balance of $200, your utilization is only 20% — which is much better.

Put simply, strive to only charge what you can pay off each month. And if your utilization will be very high, consider paying down the balance before the statement closing date if you want to improve your scores.

Read more How to Build Credit With Credit Cards: The Definitive Guide

5. Monitor Your Spending

When you connect your credit card to a budgeting tool like Mint, it can actually provide a clear glimpse into your spending habits.

Unlike with cash purchases, which, for most people, get lost in a vast abyss, credit cards allow you to see how much you’re spending — and in which categories — month after month, and year after year. In fact, you don’t even need to use a special tool; credit card issuers may provide a year-end statement with similar information.

Keeping tabs on your bill has other benefits, too. If you notice a suspicious charge, all you have to do is contact your credit card company — most cards come with a $0 fraud liability guarantee, which means you won’t be on the hook for fraud or theft.

Read more Credit Card Security: 9 Do’s and Don’ts for Avoiding Identity Theft

6. Earn Rewards

Besides building credit, one of the main reasons to use a credit card is the ability to earn rewards: either points or miles toward free travel, or cash back toward statement credits.

Although many of the best rewards credit cards are targeted at users with high credit scores, you’ll find some rewards on beginner credit cards, too. 

Take care to avoid spending extra money to earn rewards or snag a signup bonus. That would negate the value of any rewards you earn!

Read more Best Rewards Credit Cards
Insider tip

Rewards cards aren’t right for everyone. If you’re looking to finance a large purchase, a card with a 0% introductory APR can be a good option. Or, if you’re already mired in credit card debt, consider transferring your balance to a new credit card with a 0% APR, then paying it off during the intro period. Here are our favorite balance transfer cards (without balance transfer fees!). If you’re nervous about controlling your spending, cut up the old card so you don’t end up with two cards with balances you can’t pay off.

What Should You Look for in Your First Credit Card?

Ready to dive in? Although which card you get is not as important as how you use it, there are a few things you should look for in your first credit card:

  • Low fees: For your first foray into the land of credit cards, we strongly recommend choosing one without an annual fee. You should also make sure the other fees, such as foreign transaction fees for overseas purchases, are minimal as well if you plan to use the card in those ways.
  • Targeted at you: There’s a card out there for almost everybody; you just need to know where to look. If you’ve never taken out a loan before, for instance, you should search for a credit card for people with limited credit. If you’re rebuilding your credit, on the other hand, check out these cards for bad credit.
  • Ability to increase credit limit: When you’re just starting out, your credit limit is probably going to be pretty low (which means your credit utilization ratio will frequently be high). So find a card that offers an easy pathway to increasing your credit limit, thereby decreasing your utilization ratio and boosting your credit scores (most issuers allow you to request credit line increases).
Read more 11 Best Starter Credit Cards (And All the Credit Questions You Were Afraid to Ask)

How to Use Credit Cards: The #1 Rule

If you only remember one thing from this entire article, here it is: The best way to use a credit card is to only charge what you can afford to pay off at the end of the billing period.

By following this simple, albeit sometimes difficult rule, you will avoid the bad parts of credit card ownership (interest charges and fees) while benefiting from all the good parts (rewards, credit building, security, and convenience).

Good to go? Then check out our picks for the best credit cards today.

Frequently Asked Questions

How do you get a credit card?

To get a credit card, you have to apply for a credit card. You can typically find applications on card issuer websites, though you can usually apply in person at a bank — or at a store, in some cases — as well.

To actually be approved for the card, you have to meet the issuer’s requirements. That usually means your credit scores must be good enough for the card in question, though other factors, like your income, also play a role. Certain types of credit cards will require additional steps. Secured cards, for example, require deposits up front.

What can you buy with a credit card?

It’s safe to assume that nearly every chain retailer, restaurant, and service provider in America accepts credit cards to some degree. Most (but not all) small businesses do, too, though they’ll often have minimum purchase requirements for customers paying with cards.

Certain products and services may be harder to pay for with credit cards. For example, you can sometimes buy a car with a credit card, but it usually depends on the dealer’s policies.

Things you may not be able to pay for with a credit card include (but aren’t limited to):

  • Money orders: Using a credit card to pay for a money order isn’t usually allowed (though you should be able to use a debit card).
  • Stocks: There may be roundabout ways to buy stocks with a credit card, but, again, it’s probably not in your best interest.
  • Casino tokens: Casinos don’t typically accept credit for casino chips. That’s why you’re apt to see ATMs all over the place.
  • Your mortgage/rent: Some landlords accept credit cards for rent, but few do for mortgages. You may be able to use Plastiq (which transfers money on your behalf) for these things, but you’ll be charged a processing fee, so it may not be worthwhile.

When should you use your credit card?

We recommend using your credit card whenever possible, as long as you’re confident you’ll be able to pay the statement balance in full by the due date. This allows you to avoid interest charges.

There are exceptions even to this — for example, you may want to use a credit card with a 0% purchase APR offer to pay off a large, necessary expense over time.

Regardless, if you can stick to that main rule, there’s generally no reason not to use your credit card everywhere it’s accepted. Here are a few key situations in which you can benefit by using your credit card:

  • You’d like a safer payment method: Credit cards provide better consumer protections than cash or debit cards. On top of those protections laid down by the law, most issuers have $0 liability policies, which means you’re not responsible for paying fraudulent charges.
  • You’re trying to build credit: Responsibly managing a credit card account is one of the best and most dependable ways to build credit.
  • You can earn rewards: Why pay with cash or debit when you can use a credit card and earn rewards?
  • You’d prefer additional protection: Many credit cards include perks like extended warranties or travel insurance, adding a measure of safety that cash or debit simply can’t provide.
  • You don’t want to pay right off the bat: If you make a purchase at the beginning of the billing period, you have quite a while to pay it without being charged interest.

How much should you charge to your credit card?

We recommend only charging to your credit card what you can pay off in full by the due date. Paying off your full statement balance every month lets you avoid interest while making it easier to keep your credit utilization low (which helps your credit scores).

Just remember that you can still hurt your credit by accumulating too large a balance, even if you plan to pay it off before you’re charged interest. Your statement is generated well before your payment due date, and if your balance is high enough on the statement closing date, your scores may take a hit.

Was this helpful?
Written by

Susan Shain

Susan is a freelance writer who specializes in turning complex financial topics into engaging and accessible articles. She's been writing about personal finance for six years, and was previously the senior writer at The Penny Hoarder and a staff writer at Student Loan Hero. Her personal finance writing has also appeared in publications like MarketWatch and Lifehacker.

Do you have a correction, tip, or suggestion for a new post? Contact us here.

The responses below are not provided or commissioned by bank advertisers. Responses have not been reviewed, approved or otherwise endorsed by bank advertisers. It is not the bank advertisers' responsibility to ensure all posts are accurate and/or questions are answered.

Scroll to top