Credit card issuers determine your credit limit using your payment history, income, and more

Credit limits can be lowered as well as increased

Some common reasons for someone's credit limit being lowered include missed payments, an inactive account, and more.

Financial institutions check for lots of things before authorizing a purchase

Before authorizing a purchase, card issuers consider whether or not the cardholder has a high enough available credit limit to make the purchase, where the purchase is being made in order to reduce fraud, and more.

Five primary factors determine your credit score

Your credit history is used to calculate your credit score. It includes information such as how often you miss payments (on credit cards, for instance), the types of financial accounts you hold, how long you’ve held those accounts, and more.

Card issuers are financial institutions that open credit to customers, while card networks facilitate purchases between merchants and customers

Card issuers give customers credit cards, set rate limits, and collect payments. Card networks, on the other hand, dictate where credit cards can actually be used by managing relationships between the network and merchants. These networks make money on interchange fees, which merchants pay to accept a specific card network at their stores.

Credit card companies make money through interest, annual fees, and more

They also profit from interchange fees, the fee the retailer has to pay the credit card network in order to facilitate a transaction. The fee is typically between 1% and 3% of the transaction amount.

How VantageScore and FICO’s algorithms calculate credit scores differently

VantageScore and FICO weigh various factors that determine your credit score differently. For instance, while your payment history makes up 40% of your VantageScore, it only makes up 35% of your FICO score.

Charge cards are different from credit cards

Unlike credit cards, charge cards often don’t have a preset credit limit, but cardholders need to pay off the entire balance every month.

An explanation of hard credit checks vs. soft credit checks

Some buy now, pay later services do a soft credit check rather than a hard credit check, like credit card companies would do when someone applies for a card. While hard credit checks can impact your credit score, soft pulls typically do not.

How FICO and VantageScore weigh factors in credit history differently

VantageScores are sometimes lower than FICO scores because the algorithms that calculate the two scores weigh the factors that influence them differently. For instance, VantageScores typically weigh payment history more heavily than FICO scores.

Privacy concerns in the credit scoring system

Because credit scores use a lot of personal information (such as whether or not someone makes credit card payments on time), some worry their privacy is being compromised in the data collection process.

Some argue that credit reporting promotes economic inequality in the US

Although today's credit scoring system is much more objective than, say, the credit assessment system of the 1700s, some argue there's still room for improvement, with critics saying the current system is still discriminatory. For example, while mortgage payments have long been automatically reported to credit bureaus, rent payments (the primary housing expense for most lower-income Americans) historically haven't been reported unless a payment was missed.

How to check your credit score

Contrary to popular belief, checking your credit score doesn’t hurt your credit. Many credit card companies show your score when you log into their app online, but there are other ways to check it.

How the credit scoring system could change

Factoring rental payments into credit scores is just one proposed change some have suggested making to today’s credit scoring system to cater the system to renters as well as homeowners.

Who actually pays for your credit card rewards?

In 2018, 92% of all credit card spending was made on a rewards card, which seems like a good deal to many who apply for rewards cards offering discounted flights, points, and more. But in actuality, the customers are often the ones who end up paying for the rewards in the grand scheme of things.

Managing too many credit cards can be costly if they have annual fees

However, canceling cards must be strategic if it becomes necessary, as it can negatively impact your credit score. Before canceling, experts suggest asking if it's possible to downgrade to a no-annual-fee version in order to keep the account open, thus preventing potential hits to your credit score.

American Express is both a card issuer and a processing network

Unlike most credit card companies, American Express issues credit cards and processes payments—something called a closed-loop model. By offering both services, American Express profits from both interest and interchange fees, and also has access to more data on how customers spend their money so it can offer better perks.

Rewards credit cards can offer points, travel miles, and more

For every dollar that a cardholder spends on a rewards credit card, they can also receive benefits such as cash back, airline miles, and more. For many, rewards are the reason they make so many purchases on credit cards in the first place.

Why Americans are drowning in credit card debt

Americans owe more than $1T to credit card companies. And with rising interest rates that prevent cardholders from paying down debt (not to mention the rising cost of living), that number is likely to keep growing. A podcast episode explains how the US got here, and what policymakers and individuals can do about it.

See how a good VantageScore and a good FICO score can differ

While VantageScores and FICO scores both offer credit scores between 300 and 850 and consider the same core factors, they weigh those factors differently, and specific numbers can have different meanings depending on the type of score.

Visa, the first credit card network, still dominates competitors with a roughly 52% market share by purchase volume.

Among the major credit card companies in the US, Mastercard had about 25% of the market share in 2025. American Express had roughly 20%, and Discover had the smallest market share of about 4%.

How to rebuild your credit score

It's easy to let your credit score slip without realizing it. Checking your credit score and getting to know what's on your credit report are the first steps to getting to the "700 club," or "good score" range, according to one financial expert.

American Express runs on a 'spend-centric' model, using perks and merchant fees to drive profit

American Express cardholders tend to spend more money per transaction than other credit card users, which makes the interchange fees merchants have to pay to accept American Express cards worth it while incentivizing other companies to pay the interchange fee as well.

A credit card’s grace period is a minimum of 21 days

Under federal law in the United States, an individual’s credit card payment due date must fall on the same day of each month, at least 21 days after the cardholder’s statement closing date.

Why consumers could soon see the impact of buy now, pay later loans on their FICO credit scores

FICO rolled out its first-ever BNPL-specific credit scoring models in June 2025. While missed installments can now negatively impact a credit score, there's also the potential for on-time BNPL installment payments to help boost scores.

Consequences of a bad credit score

A bad credit score can lead to spending roughly $100K more on a typical mortgage. Poor scores also prevent you from getting certain jobs, apartments, and more, hindering you from building wealth in the long term.

Alaska has the highest lifetime credit card debt of all US states at $484,620

That's 21.8% above the national average, partly due to Alaska's high cost of living and remote nature, which makes shipping in food and fuel more expensive. Iowa had the lowest average lifetime credit card debt out of all the states in the US at $319,740.

What your credit score actually means

The modern iteration of credit scores hasn’t been around for that long—it was invented just a few decades ago, in 1989. This video outlines how the credit scoring system has evolved and become more complex since then. Plus, it explains what your credit score actually means, what factors impact your score, and more. Watch it here.

Why countries have credit ratings

Sovereign credit ratings work like national credit scores, measuring a country’s ability and willingness to repay its debt. Moody’s, S&P, and Fitch are the major agencies assigning these ratings, which influence borrowing costs and investor confidence.

American Express intentionally targets wealthy cardholders, who spend higher amounts per transaction and tend to make more transactions than the average cardholder, thereby reducing the company's risk.

American Express charges merchants more than other card companies to accept AmEx, making Visa a more accessible option for many merchants.

Each card network charges merchants a discount rate, which is a fee merchants pay to accept cards. American Express charges higher discount fees than competitors like Visa and Mastercard as the business is more reliant on fees for operation.

How credit scoring works outside the US

If you move outside the US, you won’t get to take your credit score with you. Credit scoring systems work differently in other countries. In the UK, for instance, being registered to vote improves your credit score.

Affirm's COO recently said that the company believes the credit card is 'going the way of the VHS tape'

Some people use buy now, pay later apps as an alternative to credit cards. BNPL services have a lower barrier to entry than credit cards—many frequent BNPL users have low credit scores.

Merchants have to pay credit card transaction fees each time a card is swiped

Credit card networks such as Visa, Mastercard, and American Express must calculate fees for not only the customer, but also the merchant in every transaction.

Why American Express charges merchants more than other card companies to accept AmEx

Each card network charges merchants a discount rate, which is a fee merchants pay to accept cards. American Express charges higher discount fees than competitors like Visa and Mastercard as the business is more reliant on fees for operation.

529 plans can affect college financial aid

Income affects FAFSA financial aid determinations. FAFSA also takes 529 college savings plans into account. The percentage of savings it uses in its calculations depends on who owns the account (parent, student, or someone else). Other schools use a program called CSS to determine financial aid, and those determinations vary.

What are business credit scores?

Businesses have credit scores the same way individuals do—with a few key differences. For one thing, business credit scores range from 0 to 100 instead of 300 to 850, and are based on factors such as bankruptcy and bill-paying habits.

Do student loans affect your credit score?

While student loans can impact your credit score, that's not necessarily a bad thing. Repaying the loan on time can strengthen your credit score, whereas paying late can hurt it. To find out more about how student loans can impact your credit score, read this article.

Algorithms built to detect credit card fraud can deny charges if they perceive the attempted purchase is unfamiliar or unusual based on historical data, even when a person has enough credit to make the purchase.

Payday lenders usually require borrowers to post-date a check or provide access to an electronic bank account

If borrowers can't pay back the loan, they can be subject to overdraft fees from their bank and other fees from the payday lender—further exacerbating the debt borrowers face.

The average US household carries $105,056 in total debt

This article breaks down the average household debt by category, including credit card debt ($6,523), personal loans ($11,274), and more.

See an original Diner’s Club charge card

Before credit cards, there were charge cards from companies like Diner’s Club. While credit cards allow cardholders to carry a balance from month to month (potentially accruing interest), charge cards like Diner’s Club cards had to be paid off right away.

Old credit cards can be made into guitar picks, phone stands and more

Experts recommend always cutting through the chip and the card number when disposing of expired credit cards, as the magnetic strip, the chip, and the card number all contain information that thieves might be interested in.

Why there are microchips in credit cards

Credit cards have evolved significantly since their invention in 1950, but security lagged in the US for years. Despite handling only a quarter of global transactions, the US once accounted for half of all credit card fraud. The 2013 Target data breach helped push the adoption of chip cards, reducing fraud but shifting risks to online scams.

The Consumer Financial Protection Bureau is looking closely at BNPL

Given the lack of data around BNPL services in comparison to other financial products such as credit cards, the CFPB has conducted research to better understand BNPL products and how they could harm and benefit consumers.

Even high earners are living paycheck to paycheck

While roughly 14% of American households make $200K or more per year, many of them still don't feel rich. For instance, more than 60% of people with salaries over $300K per year still struggle with credit card debt.

Credit cards were the fourth-highest source of US consumer debt as of 2024

US consumer debt nationwide totaled $17.9T as of 2024 Q3. Mortgage debt ranked as number one, with student loan debt coming in at number two.

From wage garnishment to a credit score hit, a multitude of consequences can occur if a borrower doesn't repay their student loans.

Most people will probably never hit a perfect 850 credit score for a variety of reasons, including the fact that younger borrowers are at a disadvantage as credit history length accounts for 15% of one's score.

Credit reporting's earliest origins in the 1700s resemble a game of telephone, with rural merchants asking their most esteemed neighbors to vouch for them to sleuthing urban lenders.

Why private credit has faced challenges in recent years

The factors that some experts say are driving what could be private credit's most challenging era since the 2008 financial crisis include global economic uncertainty around trade and tariffs, investor fears about the amount of money being spent on artificial intelligence, and more.