Are Credit Card Rewards Actually Free?

The short answer: Not in the sense of free money from nowhere. Credit card rewards are funded by two things: the swipe fees merchants pay, which get baked into higher prices for everyone, and the interest paid by cardholders who carry balances. If you pay in full every month, you capture rewards without funding them through interest, so you come out ahead, effectively getting some of that money back. If you carry a balance, you are paying for everyone’s rewards, including your own.

This guide explains who actually funds credit card rewards and how to make sure you are on the winning side of the system.

Where rewards money comes from

Every card purchase generates a swipe fee, or interchange, that the merchant pays, and those fees are largely built into the prices everyone pays, whether they use a card or not. On top of that, the interest paid by people who carry balances funds a large share of rewards. So rewards are not conjured from nothing; they are recycled from fees and interest that flow through the whole system.

Who wins and who loses

This is the crucial part. If you pay your statement in full every month, you never pay interest, so you collect rewards funded by the system without contributing interest to it, you come out ahead. If you carry a balance, the interest you pay dwarfs any rewards, and you become one of the people funding everyone else’s rewards, as spelled out in do rewards beat the interest.

How to be on the winning side

The takeaway is simple and is the heart of using cards well: treat rewards as a rebate you earn only by paying in full and never revolving a balance. Do that, and rewards are as close to free as it gets for you personally. This is the same idea behind why American cards reward you so heavily, learn the game, and you get paid instead of paying.

The bottom line
  • Rewards are funded by merchant swipe fees and cardholder interest.
  • Swipe fees are baked into higher prices for everyone.
  • Interest from revolvers funds much of the rest.
  • Paying in full lets you capture rewards without funding them.
  • Carrying a balance means you pay for the rewards.

Frequently asked questions

Are credit card rewards really free?
Not exactly. They are funded by merchant swipe fees baked into prices and by interest from people who carry balances. If you pay in full, you capture rewards without funding them and come out ahead.
Who pays for credit card rewards?
Merchants through swipe fees, which raise prices for everyone, and cardholders who carry balances and pay interest. Those who pay in full effectively get a share of that money back.
How do I make sure rewards actually pay off for me?
Pay your statement in full every month and never carry a balance. Then you earn rewards without paying interest, which is the only way they truly come out ahead.

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Bryce Casson

Written by Bryce Casson, Founder of Cardocrat. About the author and how we rank cards.