What credit cards do, and why the type matters
A credit card is a tool that lets you borrow money from a bank or card issuer to pay for things now and pay back the money later. The type of card you get determines how much you can borrow, what you pay in interest and fees, and what rewards or benefits come with it. The main types — rewards cards, cash back cards, balance transfer cards, secured cards, and student cards — are built for different situations and different kinds of spending.
The card type also signals to the issuer how risky you are as a borrower. Someone with no credit history gets offered a secured card that requires a cash deposit. Someone with excellent credit gets offered a premium rewards card with high limits and low interest rates. Understanding which type fits your situation now, and which type you might move toward later, helps you avoid overpaying in interest and fees while you build credit.
Key Takeaways
- Rewards cards and cash back cards give you money back on purchases, but charge higher interest rates if you carry a balance, so they work best if you pay off the full statement balance each month.
- Balance transfer cards offer a low or zero interest rate for a set period on debt you move from another card, which can save thousands in interest if you pay down the balance during that window.
- Secured cards require you to put down a cash deposit that becomes your credit limit, and are designed to help people with no credit or damaged credit build a history.
- Student cards are built for people in school or recent graduates, with lower limits and fewer fees, and often come with tools to learn about credit.
- Your credit score determines which cards you can get, so starting with a card you actually may have access to for matters more than chasing the "best" card.
Rewards cards: earning points on everyday spending
A rewards card gives you points, miles, or other rewards for every dollar you spend. The rewards rate varies — some cards give 1 point per dollar on everything, while others give 3 or 5 points per dollar on specific categories like groceries or gas, and 1 point per dollar on everything else. You redeem those points for travel, merchandise, statement credits, or cash.
The catch is that rewards cards almost always charge a higher interest rate than other cards, and many charge an annual fee of $95 to $550. They only make financial sense if you pay off your full statement balance every month. If you carry a balance, the interest you pay will quickly erase any rewards you earned. Rewards cards also usually require good or excellent credit — a score of 670 or higher — so they are not a first card for someone building credit from scratch.
A common rewards card might offer 2 points per dollar on dining and travel, 1 point per dollar on everything else, and a $95 annual fee. If you spend $3,000 a month on dining and travel and $2,000 on other things, you earn 8,000 points per month. If those points are worth 1 cent each, that is $80 per month in rewards — which covers the annual fee and leaves you $40 ahead, but only if you never carry a balance.
Cash back cards: the simplest form of rewards
Cash back cards work like rewards cards but simpler: you earn a percentage of what you spend back as actual money. A card might offer 2% cash back on all purchases, or 3% on groceries and gas and 1% on everything else. You can usually take the cash back as a statement credit, a check, or a deposit to your bank account.
Cash back cards have the same drawback as rewards cards — they charge higher interest rates and often have annual fees — so they only work if you pay in full each month. They also require good credit, usually a score of 670 or higher. The advantage over points-based rewards is that cash back has a clear dollar value, so you do not have to guess what your points are worth or navigate a redemption website.
A straightforward cash back card might offer 1.5% cash back on all purchases with no annual fee. If you spend $2,000 per month, you earn $30 per month in cash back, or $360 per year. That is real money back in your pocket, but again, only if you never carry a balance and pay interest.
Balance transfer cards: moving debt to a lower rate
A balance transfer card is designed to help you pay down debt faster by moving a balance from a high-interest card to a new card with a much lower rate — often 0% — for a limited time. The 0% period typically lasts 6 to 21 months, depending on the card. After that period ends, the regular interest rate kicks in.
Balance transfer cards usually charge a fee of 3% to 5% of the amount you transfer, paid upfront. So if you transfer $5,000 and the fee is 4%, you pay $200 when ready, and your new balance is $5,200. The math still works in your favor if the interest rate on your old card was much higher and you can pay down the balance during the 0% period. If you transfer $5,000 at 4% fee to a 0% card and pay $300 per month, you will owe $5,200 for the first month, then $4,900, then $4,600, and so on. You will be debt-free in about 17 months with no interest charges.
Balance transfer cards require good credit, usually a score of 670 or higher. They also assume you have an existing balance to transfer — they are not useful if you have no debt or only small amounts. And they only save money if you actually pay down the balance before the 0% period ends. If you transfer $5,000 and pay nothing for 18 months, you will owe interest on the full amount starting in month 19.
Secured cards: building credit from zero
A secured card is a credit card for people with no credit history or poor credit. To get one, you put down a cash deposit, usually $200 to $2,500, which becomes your credit limit. You use the card like any other card — make purchases, receive a statement, pay the bill — and the deposit stays in the bank's account the whole time, untouched.
The deposit is not a fee; it is collateral. The bank holds it to protect itself in case you do not pay your bill. You earn no interest on the deposit. After 6 to 18 months of on-time payments, the bank will usually convert your secured card to a regular unsecured card, return your deposit, and raise your credit limit. At that point you can move to a rewards card or any other type you want.
Secured cards charge interest rates of 18% to 24% and often have annual fees of $25 to $95. They are not cheap, but they are the fastest way to build credit if you have none or if your credit was damaged. The interest rate and fees matter less because you should not carry a balance on a secured card — the whole point is to prove you can pay on time. Charge small amounts you can pay off in full each month, and your credit score will improve steadily.
Student cards: designed for people in school
Student cards are built for people currently in college or university, or recent graduates. They have lower credit limits — often $500 to $2,500 — and lower annual fees or no annual fee at all. Some offer rewards like cash back or points, though usually at lower rates than premium cards. Many also include educational tools like credit score tracking or spending alerts.
Student cards require proof of enrollment or recent graduation, usually a student ID or transcript. They require less credit history than other cards, so they are easier to get if you have never had credit before. Interest rates are still high — 18% to 24% — so the same rule applies: pay in full each month and do not carry a balance.
A typical student card might offer 1% cash back on all purchases, no annual fee, and a $500 starting limit. After you graduate and build a credit history with on-time payments, you can move to a rewards card with better benefits. The student card is a stepping stone, not a permanent card.
How to choose the right card for your situation
Start by checking your credit score. If it is below 620, a secured card is your only realistic option. If it is between 620 and 669, you might may have access to for a student card or a basic unsecured card with a higher interest rate. If it is 670 or higher, you can choose from rewards cards, cash back cards, and balance transfer cards.
Next, think about your spending and payment habits. If you carry a balance month to month, avoid rewards and cash back cards — the interest will cost you far more than the rewards are worth. If you have debt on another card, a balance transfer card can save you thousands in interest, but only if you commit to paying down the balance during the 0% period. If you pay in full every month and want to earn money back, a cash back card is simpler than a rewards card.
Finally, read the fine print. Compare the annual fee, the interest rate, the rewards rate, and any other fees like balance transfer fees or late payment fees. A card with a $95 annual fee and 2% cash back only makes sense if you spend enough to earn at least $95 per year in cash back. A card with no annual fee and 1% cash back is better if you spend less.
Frequently Asked Questions
What is the difference between a rewards card and a cash back card?
Rewards cards give you points or miles that you redeem for travel, merchandise, or statement credits. Cash back cards give you a percentage of your spending back as actual money. Cash back is simpler because the value is clear — 2% cash back means you get 2 cents per dollar spent. Points require you to figure out what they are worth.
Can I use a balance transfer card if I do not have any debt?
No. Balance transfer cards are designed to move existing debt from another card. If you have no debt, a rewards or cash back card is a better choice. Some balance transfer cards do offer a 0% period on new purchases as well, but that is less common and usually shorter than the balance transfer period.
How long does it take to build credit with a secured card?
Most banks convert a secured card to an unsecured card after 6 to 18 months of on-time payments. Your credit score will start improving within 30 to 60 days of opening the card if you make payments on time. The longer your payment history, the faster your score rises.
What happens to my deposit if I close a secured card?
When you close the card or the bank converts it to an unsecured card, your deposit is returned to you. It usually takes 5 to 10 business days. If you have an unpaid balance when you close the card, the bank may use your deposit to pay it, so make sure your balance is zero before closing.
Do I need to carry a balance to build credit?
No. Paying in full each month is actually better for your credit score than carrying a balance. Your payment history and credit utilization — the percentage of your limit you use — both affect your score. Paying in full keeps your utilization low and shows you pay on time, both of which improve your score faster.