Rewards and points
Rewards cards give you cashback, points, or miles on your spending, genuinely valuable, but only if you clear your statement balance in full every month. Carry a balance and the interest charged will almost always outweigh whatever rewards you earned, often by a wide margin, turning a "reward" into a net loss. Picking a card that matches categories you actually spend a lot in matters more than chasing the single highest headline rate.
A worked example
A card offering 2% cashback on a $500 monthly grocery bill earns you $10 a month, or $120 a year, genuinely useful if you always pay in full. But carry just $500 of that spending forward at a 24% APR for a year, and you could pay over $100 in interest, wiping out most or all of the cashback earned.
Key takeaways
- Rewards only add real value if you're not paying interest on a carried balance.
- Match a card's reward categories to where you actually spend the most, not just the flashiest headline rate.
- Watch any annual fee against the realistic value you'll actually earn back.
Common mistakes
- Carrying a balance "because the rewards make up for it", interest almost always outweighs rewards.
- Picking a card for a reward category you rarely spend in, just because the rate looks impressive.
- Overspending specifically to chase more rewards points, which defeats the purpose entirely.
Test yourself
1. When do credit card rewards actually add real value?
- Always, regardless of balance
- Only when you pay your statement balance in full each month
- Only on weekends
- Rewards never add real value
Answer: Only when you pay your statement balance in full each month. Interest on a carried balance typically outweighs rewards earned, so rewards only genuinely pay off if you avoid interest entirely.
2. What matters more than chasing the single highest headline reward rate?
- Nothing else matters
- Matching the card to categories you actually spend a lot in
- The card's color
- How many people use that card
Answer: Matching the card to categories you actually spend a lot in. A card is only as useful as the rewards you'll actually earn based on your real spending habits.
3. What is a risky reason to spend more than you normally would?
- To pay off debt faster
- To chase more reward points
- To build an emergency fund
- To save on taxes
Answer: To chase more reward points. Overspending purely to earn more rewards points defeats the purpose and risks real financial harm.
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Sources and further reading
- CFPB: Consumer tools for credit cards
- MoneyHelper (UK): free, impartial money guidance
- FCA (UK): Consumer information