What a rewards credit card actually does
A rewards credit card gives you cash back, points, or miles on purchases you make. The card issuer pays you a percentage of what you spend — typically 1 to 5 percent — either as a statement credit, a check, or currency you can use for travel or merchandise. You get this money only if you pay your full balance each month. If you carry a balance, the interest you pay will almost always exceed the rewards you earn.
The catch is that rewards cards usually charge an annual fee, ranging from $0 to $550 or more. A card that gives 2 percent cash back but costs $95 per year only makes sense if you spend at least $4,750 annually on that card. A card with no annual fee and 1 percent cash back works for anyone, but you earn less per dollar spent.
The best rewards card for you depends on three things: how much you spend, what you spend it on, and whether you will actually pay the full balance each month. A card that earns 5 percent on groceries is worthless if you never carry a balance and pay interest instead.
Key Takeaways
- Rewards only benefit you if you pay your full balance monthly; otherwise, interest charges will exceed any cash back or points you earn.
- Cards with no annual fee and flat 1 to 1.5 percent cash back work for most people and require no strategy to use.
- Cards with higher rewards rates (3 to 5 percent) usually charge annual fees and only make financial sense if you spend enough in their bonus categories to cover that fee.
- Bonus points offered when you open a new card can be valuable, but only if you meet the spending requirement without overspending just to reach it.
- Your credit score affects which cards you can get approved for; cards with the best rewards typically require a score of 670 or higher.
Flat-rate cards: the simplest choice
A flat-rate rewards card gives you the same percentage back on every purchase, no matter what you buy. Common rates are 1 percent, 1.5 percent, or 2 percent cash back. These cards usually have no annual fee or a low one ($0 to $25).
A flat-rate card makes sense if you do not want to track spending categories or if your purchases are spread across many different types of merchants. You earn the same reward whether you buy gas, groceries, or plane tickets. The math is straightforward: spend $10,000 per year, earn $100 to $200 in cash back.
The trade-off is that you earn less per dollar than someone using a category-specific card in their highest-earning category. But you also do not have to remember which card to use or worry about hitting a minimum spend to justify an annual fee.
Category cards: higher rewards if you match your spending
A category card offers different rewards rates for different types of purchases. You might earn 5 percent on groceries, 3 percent on gas, 1 percent on everything else, and pay a $95 annual fee. These cards only make sense if your actual spending matches the bonus categories.
To know whether a category card is worth it, add up what you spend per year in each bonus category. If you spend $3,000 per year on groceries at 5 percent, that is $150 in rewards. If you spend $2,000 per year on gas at 3 percent, that is $60. Total: $210 in rewards. Subtract the $95 annual fee, and you net $115. Compare that to a flat 1.5 percent card with no fee on the same $5,000 in spending: you earn $75. The category card wins by $40.
But if your spending does not match the categories, the fee eats your profit. If you spend most of your money on restaurants and travel, a card that bonuses groceries and gas will cost you money.
Sign-up bonuses and how to use them without overspending
Many rewards cards offer a large bonus — often 50,000 to 100,000 points or $200 to $500 cash back — if you spend a certain amount in the first three months. These bonuses can be valuable, but only if you would have made those purchases anyway.
A common mistake is spending more than you normally would just to hit the bonus threshold. If a card requires $3,000 in spending to earn a $200 bonus, but you only spend $2,000 per month normally, you would have to overspend by $1,000 to get the bonus. That extra $1,000 in purchases costs you money in interest or opportunity cost, and the $200 bonus does not make up for it.
The right approach is to look at your actual spending for the past three months, add it up, and ask: will I naturally hit this threshold? If yes, the bonus is information programs. If no, skip the card or wait until a month when you know you will have larger expenses (a vacation, a home repair, a car purchase).
Travel rewards cards and points programs
Some cards earn points or miles instead of cash back. These points can be redeemed for flights, hotel stays, or other travel. The value of a point varies widely — sometimes a point is worth 1 cent, sometimes 2 cents, sometimes less. A card that earns 2 points per dollar on travel might sound generous, but if each point is worth 0.5 cents, you are earning 1 percent cash back in disguise.
Travel cards make sense if you travel regularly and understand the point system of the airline or hotel chain. If you fly the same airline multiple times per year, earning points in that airline's program can lead to free flights. If you travel rarely or use different airlines each time, the points sit unused and expire.
Before opening a travel rewards card, check the redemption rates on the card issuer's website. Look for a flight or hotel you would actually book, and calculate what that stay or flight costs in points. Divide the point cost by the number of points you would earn to find the true cash-back rate. If it is less than 1.5 percent, a flat cash-back card is better.
Credit score requirements and approval odds
Rewards cards with the best rates and lowest fees typically require a credit score of 670 or higher. Some premium cards require 750 or higher. If your score is below 670, you may not be approved for the cards with the best rewards.
If you have a lower score, look for cards marketed to people building credit. These cards usually offer no rewards or very low rewards (0.5 percent), but they report to all three credit bureaus and help you build history. Once your score reaches 670 or higher, you can explore for better cards.
Each process for a credit card creates a hard inquiry on your credit report and lowers your score slightly for a few months. explore for only one or two cards per year to avoid damage. If you are denied, wait at least six months before explore again, and use that time to pay down balances and build your score.
Annual fees: when they are worth paying
A card with a $95 annual fee is only worth it if you earn at least $95 more in rewards than you would with a no-fee card. To calculate this, compare the rewards you would earn on your actual annual spending using both cards.
Example: You spend $15,000 per year. Card A has no fee and pays 1.5 percent cash back. Card B has a $95 fee and pays 2 percent cash back. On $15,000, Card A earns $225. Card B earns $300 minus $95 fee = $205 net. Card A wins by $20. Do not get Card B.
Now assume you spend $25,000 per year. Card A earns $375. Card B earns $500 minus $95 = $405 net. Card B wins by $30. In this case, Card B makes sense.
Some cards waive the annual fee for the first year. Use that year to test whether you will actually use the card and hit the bonus categories. If you do not, cancel before the second year and the fee is never charged.
How to avoid common rewards card mistakes
The biggest mistake is carrying a balance. A card that earns 2 percent cash back but charges 18 percent interest on a balance is a net loss. If you cannot pay the full balance each month, do not open a rewards card. Use a card with no annual fee and no rewards instead, and focus on paying down the balance.
The second mistake is opening too many cards at once. Each process lowers your credit score. Multiple applications in a short time signal to lenders that you are desperate for credit, which makes approval harder and rates worse. Space applications at least six months apart.
The third mistake is chasing rewards on purchases you do not need. A 5 percent bonus on groceries does not justify buying groceries you will not eat. Rewards are a bonus on spending you would do anyway, not a reason to spend more.
The fourth mistake is ignoring the card after you open it. Set a calendar reminder to check the rewards rate and annual fee once per year. If the card no longer matches your spending, switch to a different card or close it before the next annual fee hits.
Frequently Asked Questions
Do I need excellent credit to get a rewards card?
Most cards with strong rewards (2 percent or higher) require a credit score of 670 or above. If your score is lower, you can still get a card, but it will likely have lower rewards or a higher interest rate. Focus on building your score first, then explore for better cards later.
What happens to my points if I close the card?
This varies by card issuer. Some let you keep points after you close the card; others cancel them. Check the card's terms before closing. If the card has an annual fee and you want to keep the points, call the issuer and ask if you can downgrade to a no-fee version of the same card instead of closing it.
Can I use multiple rewards cards to maximize earnings?
Yes, many people use two or three cards strategically. One card for groceries, one for gas, one for everything else. But only do this if you can manage multiple cards without missing payments or carrying balances. If tracking multiple cards stresses you, stick with one flat-rate card.
Is a sign-up bonus worth moving my spending to a new card?
Only if you would have made those purchases anyway. If the bonus requires $3,000 in spending over three months and you normally spend $2,000 per month, you will naturally hit it. If you normally spend $1,000 per month, overspending to reach the bonus costs you money and is not worth it.
What if I want to travel but do not have a travel rewards card?
You can still book travel with cash back from a flat-rate card. A 2 percent cash-back card on $10,000 in annual spending earns $200, which covers a hotel night or a flight segment. You do not need a travel-specific card to fund travel; you just need to save the cash back and use it for that purpose.