A cash-back credit card returns a percentage of what you spend as a statement credit, reward dollars, or a deposit, rather than rewarding you with points or miles tied to a specific travel programme. Most cards advertise a headline rate, but in practice the percentage that actually lands in your pocket depends on where the spending happens and how the rewards are calculated. It is the most straightforward rewards structure on the market, which is why cash-back cards tend to appeal to people who would rather not learn the rules of a points system.
The first thing that separates one card from another is whether the rate is flat across all purchases or whether it rotates by category, such as groceries, dining, or fuel. A flat rate is easy to predict but rarely the highest available; tiered rates pay more in some categories and less in others, and the best value often depends on whether the categories match your own spending. The second is the presence and shape of a sign-up bonus, an annual fee, and any caps that limit how much bonus rewards you can earn in a given year.
When comparing cards, focus on your own spending mix, the effective rewards rate after caps, and the all-in cost once any annual fee is netted against the cash value you expect to earn.