2% on everything sounds simple and smart. But the math usually tells a different story — especially if you travel even once a year.
The pitch for a flat 2% cash-back card is seductive: simple, automatic, no thinking required. Swipe everything on one card, collect your check at the end of the year. It's the personal finance equivalent of "just index fund it."
Except it's not quite the same. Index funds beat most active strategies because markets are efficient. Credit card rewards are not efficient — they're deliberately designed to be extracted if you pay attention. And "2% on everything" turns out to be a way of opting out of that extraction.
Let's say you spend $4,000/month on your card. That's $48,000/year. At 2%, you net $960 in cash back. Not bad.
But look at what that $48,000 actually breaks down to:
Now run those same four top categories through a well-used points setup. Amex Gold for groceries (4×) and dining (4×). Chase Sapphire Reserve for travel (3×). A no-fee card for gas and everything else. Points valued conservatively at 1.5¢ each via transfer partners:
That's a $720 annual difference — and we used conservative point valuations. Transfer Amex points to ANA or Air France KLM and you can get 2–2.5¢ per point on business class redemptions. At that rate, the gap is over $1,200.
This isn't a blanket "cash back is bad" take. There are cases where 2% is genuinely the right call:
The real question isn't "cash back or points?" It's whether you'll actually use the points. Points sitting in an account unused are worth $0. Cash is always worth cash.
The biggest argument for 2% is that it's simple. You don't have to think about which card to use. But there are two problems with this:
First, simplicity is overrated in this context. Using the right card at a restaurant vs. a grocery store isn't genuinely cognitively taxing — it's a 2-second habit. The "too much hassle" framing usually means people haven't built the habit, not that the habit itself is hard.
Second, the "simple" cards often come with gotchas of their own — foreign transaction fees, limited acceptance, or bonus categories that expire or cap out. They're not as frictionless as advertised.
If you travel at least once a year, fly economy or better, and are willing to spend one afternoon reading about transfer partners: a points setup will almost certainly beat your 2% card. The math is not close.
If you don't travel or don't want to deal with points: a 2% card is a perfectly fine default. It won't be optimal, but it won't be wrong either.
The worst outcome is being on a 1% card because you didn't know better. Everything above that is a real win.
The ardocards quiz shows you exactly what each card in your wallet earns per category — and whether a better setup exists.
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