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How credit card rewards work
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Every rewards card does the same basic thing: when you spend, the card gives some of the fee it collects back to you. What differs is how it pays you, and that's where cards that look great on paper can end up paying very little.
Where rewards come from
When you pay with a card, the store pays a small processing fee. Card issuers use part of that money, plus annual fees and interest from people who carry a balance, to fund rewards. That last part matters: rewards only make sense if you pay your balance in full every month. Interest charges wipe out a year of rewards quickly.
The best rewards card is worthless if you carry a balance. Pay in full first; chase rewards second.
The three kinds of rewards
| How it pays | Best for | |
|---|---|---|
| Cash back | A percentage of what you spend, as a statement credit or deposit | Simplicity: no math, no redeeming strategy |
| Points | Points per dollar, redeemed for travel, cash, gift cards, or transferred to partners | People willing to learn how to redeem well |
| Miles | Airline or hotel currency tied to one brand | Loyal flyers or guests of one airline or hotel chain |
Earning rates: flat vs bonus categories
Cards either pay a flat rate on everything (for example, 1.5% or 2% back on every purchase) or a higher rate in certain categories, like 3x or 4x points on dining or groceries and 1x on everything else. Category cards can earn much more, but only if a big share of your spending lands in those categories. Some cards also put caps on bonus categories or rotate them every quarter, which you have to remember to activate.
What a point is really worth
This is the part most people miss. A "point" has no fixed value; it depends on how you spend it.
- As cash or a statement credit, points are often worth about 1 cent each, sometimes less.
- Booked as travel through the card's portal, some programs give a bit more per point.
- Transferred to airline or hotel partners, points can be worth more, but it takes effort and flexibility, and values change.
- As gift cards or merchandise, points are often worth less.
So "4x points" is only 4% back if each point is worth 1 cent to you. When comparing cards, use the value you'd realistically get, not the best case.
How to pick a rewards style
Want zero effort? A flat-rate cash back card with no annual fee.
Spend a lot in a few categories? A category card that matches where your money actually goes.
Travel often and like a puzzle? A flexible points card, but only if you'll learn to redeem it.
Carry a balance sometimes? Skip rewards for now and look for a low interest rate instead.
Quick answers
Is cash back or points better?
Cash back is better for most people because its value is fixed and simple. Points can be worth more, but only if you take the time to redeem them well; redeemed for cash or gift cards, they're often worth the same or less.
How much is a credit card point worth?
It depends on the program and how you redeem it. Redeemed as cash, points are often worth about 1 cent each. Transferred to travel partners, they can be worth more, but values vary and change.
Do credit card rewards expire?
Many don't expire while your account is open, but some programs and airline miles can expire after inactivity, and you can lose points if you close the card. Check your program's terms.
Run your own numbers
Is a card's annual fee worth it for you?
Plug in your actual spending and see what a card would really earn after its fee, compared with a simple no-fee card.