Credit card rates are high because the bank takes on more risk and expects to lose money on some cardholders
A credit card is unsecured debt. The bank has no collateral — no house, no car, nothing they can take back if you stop paying. A mortgage lender can foreclose. A car lender can repossess. A credit card company can only sue you, which costs money and often fails. That risk gets priced into the rate.
Credit card companies also expect a percentage of cardholders to default entirely. They build the cost of those losses into the interest rate charged to everyone else. If a bank knows that 3 to 5 percent of cardholders will never pay back what they owe, they raise rates on the other 95 to 97 percent to cover it. A mortgage lender faces default rates closer to 0.5 percent, so they can charge much less.
The other reason is that credit cards are designed for short-term borrowing. You can carry a balance for months or years, but the bank doesn't know how long. A car loan has a fixed term — you know you'll be paid back in 60 months. A credit card could be paid off next month or carried for a decade. That uncertainty costs money to manage.
Key Takeaways
- Credit card debt is unsecured, meaning the bank has no collateral to recover if you don't pay, so they charge higher rates to cover the risk.
- Banks expect some cardholders to default completely, and they raise rates on all cardholders to absorb the cost of those losses.
- Credit card rates vary by your credit score, payment history, and the card issuer's own risk model — two people with the same score may see different offers.
- The federal government does not set a maximum credit card interest rate, so banks can charge whatever the market will bear.
- Introductory rates (often 0 percent) are temporary offers designed to attract new customers; the regular rate kicks in after the promotional period ends.
How your credit score affects the rate you're offered
Banks use your credit score as the main signal of how likely you are to pay. A higher score means lower risk, so you get a lower rate. The difference is substantial: someone with a score of 750 might be offered 16 percent, while someone with a score of 650 might see 24 percent on the same card.
Your score reflects your payment history, how much debt you're already carrying, how long you've had credit accounts open, and how many times you've recently applied for new credit. A single late payment can drop your score 100 points and lock you out of the best rates for years. That's why banks charge more to borrowers with recent missed payments — they have data showing those borrowers are more likely to miss again.
The card issuer also runs their own internal model. Two people with identical credit scores might get different offers because one has a history with that specific bank and the other doesn't. A bank that has seen you pay on time for five years will offer you a better rate than a bank that has never seen you before.
Why introductory rates don't last
Many cards advertise 0 percent interest for 6, 12, or even 21 months. That's a real offer — you genuinely pay no interest during that window — but it's temporary. The bank uses the low rate to attract you, knowing that most people will carry a balance after the promotional period ends. When the intro rate expires, the regular rate kicks in, often 18 to 24 percent.
The math is straightforward from the bank's perspective: they lose money on you during the intro period, but they make it back when you're paying 22 percent on a $5,000 balance. Even if you transfer that balance to another 0 percent card, the bank has already won — they've had your account and your data for a year, and they know whether you're a profitable customer.
Read the fine print on any 0 percent offer. Some cards charge a balance transfer fee (usually 3 to 5 percent of the amount transferred) upfront. Others explore the regular rate to any new purchases you make during the promotional period, not just the transferred balance. The 0 percent is real, but it's narrower than the marketing suggests.
The difference between credit cards and other types of loans
A personal loan from a bank or credit union typically charges 8 to 18 percent. A car loan charges 4 to 10 percent. A mortgage charges 3 to 7 percent. The rates drop as the collateral gets more valuable and the term gets longer. A house is worth something; a car is worth something; your promise to pay is worth less.
Credit cards also charge more because you can borrow and repay repeatedly on the same account. A car loan is a one-time transaction: you borrow $25,000, you pay it back over five years, done. A credit card is open-ended. You might borrow $2,000 one month, pay it off, borrow $5,000 the next month, pay half of it off, and so on. That flexibility costs the bank more to manage.
The federal government sets no cap on credit card interest rates. Banks can charge whatever they want, limited only by state usury laws (which vary widely) and competition. If you have poor credit, you might see rates of 28 to 36 percent. If you have excellent credit, you might see 12 to 16 percent. The market sets the rate, not a regulator.
Why banks compete on rates but still keep them high
You might expect fierce competition to drive credit card rates down. It doesn't, because the market doesn't work that way. Banks compete on rewards, sign-up bonuses, and perks — not on interest rates. A card might offer 2 percent cash back or 50,000 bonus points, but the interest rate stays high.
This happens because most people don't carry a balance. If you pay your statement in full each month, you pay zero interest no matter what the rate is. Banks make money on you through interchange fees (the small percentage merchants pay when you swipe your card) and annual fees. For those customers, the interest rate is irrelevant, so banks don't compete on it.
The people who do carry a balance are often the ones with lower credit scores and fewer options. They can't shop around as easily because they won't be approved for the best cards. Banks know this, so they keep rates high on customers who have limited alternatives. It's not a conspiracy — it's how risk pricing works in a market where the riskiest borrowers have the fewest choices.
What happens to your rate after you open the account
The rate you're offered when you open a card is not locked in. Banks can raise your rate at any time, though federal law requires them to give you 45 days' notice. They can raise it if you miss a payment, if your credit score drops, if you max out your credit limit, or sometimes for no reason at all (though this is less common now).
Some cards have a "penalty rate" that kicks in if you pay late. This is usually 5 to 10 percentage points higher than your regular rate and can last for six months or longer. A single 30-day late payment can jump your 18 percent rate to 28 percent. That's why a missed payment costs so much — it's not just the late fee, it's the higher rate on your entire balance going forward.
You do have one protection: if your rate goes up, you have the right to reject the increase and close the account (though you'll still owe the balance at the old rate). In practice, most people accept the increase because they don't realize they have a choice, or because they can't move the balance elsewhere.
How to reduce the rate on your existing card
If you've had a card for a year or more and your credit score has improved, call the bank and ask for a lower rate. Many banks will negotiate, especially if you have a good payment history with them. You're not asking for a favor — you're reminding them that you could move your balance to a competitor. A 2 to 3 percentage point reduction is common if you ask.
The bank will pull your credit report and review your account. If you've paid on time and your score has gone up, they often say yes. If you've missed payments or your score has dropped, they'll say no. It costs you nothing to ask, and the worst they can say is no.
Another option is a balance transfer to a card with a lower regular rate or a 0 percent promotional period. This makes sense only if the new card's regular rate is genuinely lower and you have a plan to pay off the balance before the intro period ends. A balance transfer fee (usually 3 to 5 percent) eats into your savings, so do the math first.
Frequently Asked Questions
Can a credit card company raise my rate without warning?
They must give you 45 days' notice before raising your rate, and they must tell you that you have the right to reject the increase and close the account. They can raise your rate when ready if you're more than 60 days late on a payment. Check your statements and emails for rate change notices.
Why do some people get offered 0 percent for 21 months and others only 6 months?
The length of the promotional period depends on your credit score, payment history, and how much the bank wants your business. Someone with a 750 score might get 21 months; someone with a 680 score might get 6 months on the same card. The bank is betting on how long they think you'll carry a balance.
Is there a federal limit on how high credit card rates can go?
No. The federal government does not set a maximum credit card interest rate. Some states have usury laws that cap rates, but many states have no cap at all. Banks can charge 28, 35, or even higher percentages if state law allows it.
If I pay my balance in full every month, does the interest rate matter?
No. If you pay your full statement balance by the due date, you pay zero interest regardless of the rate. The rate only matters if you carry a balance from month to month. Many people with excellent credit use high-rate cards because they never pay interest — they earn rewards instead.
Why can't I get a lower rate even though I have good credit?
Banks don't compete on interest rates the way they compete on rewards and bonuses. If you have good credit, you're more likely to be approved for a card with better rewards, not a lower rate. The best way to get a lower rate is to call your current card issuer and ask, or to transfer your balance to a new card with a promotional period.