How cash back works on a credit card
Cash back is a percentage of what you spend that the card issuer returns to you. When you use the card to buy something, the issuer credits a small amount to your account — typically between 0.5% and 5% of the purchase price, depending on the card and the category of purchase. You do not have to do anything special to earn it; the cash back accrues automatically as you spend.
The card issuer pays this money because they earn a fee from the merchant (the store or business where you shopped). They share a portion of that fee with you as an incentive to use their card instead of a competitor's. The higher the cash back rate, the more the issuer is willing to give up from their merchant fees to attract your business.
Cash back is different from points or miles, which require you to convert them into travel or merchandise. Cash back is already in the currency you spend — dollars — so you can use it however you want.
Key Takeaways
- Cash back accrues automatically when you use the card; you earn it by spending, not by taking extra steps.
- Flat-rate cards give you the same percentage on all purchases, while category cards give higher rates on specific spending like groceries or gas.
- You redeem cash back by requesting a statement credit, a check, or a deposit to your bank account — the method depends on what your card issuer offers.
- Some cards require a minimum balance before you can redeem, and some cash back expires if you do not use it within a certain time.
- Cash back is taxable income in the year you receive it, though most issuers do not report small amounts to the IRS.
Flat-rate versus category cash back cards
Flat-rate cards give you the same percentage on every purchase. A card might offer 1.5% cash back on everything you buy, whether it is groceries, gas, or a plane ticket. These cards are simple to use because you do not have to think about which category you are in — you earn the same rate no matter what.
Category cards offer higher rates on specific types of spending and lower rates on everything else. A common structure is 5% on groceries, 3% on gas, 1% on everything else. Some category cards rotate their bonus categories quarterly — for example, 5% cash back on restaurants one quarter and 5% on drugstores the next. You have to activate these rotating categories in the card issuer's app or website, or you earn only the base rate.
Flat-rate cards work best if your spending is scattered across many categories or if you do not want to track which card to use. Category cards work best if you spend heavily in one or two categories — a household that fills up the gas tank twice a week or buys groceries for a large family can earn significantly more with a category card than a flat-rate card.
How to redeem your cash back
The method for redeeming cash back depends on your card issuer. Most offer at least two of these options: a statement credit (the issuer subtracts the cash back from your next bill), a check mailed to your address, or a direct deposit to your linked bank account. Some issuers also let you use cash back to pay down your balance or transfer it to a linked savings account.
To redeem, log into your card issuer's website or app and look for a section labeled "Rewards," "Cash Back," or "Redemptions." You will see your current cash back balance and the available redemption methods. Select the method you want and confirm. Most issuers process the redemption within one to three business days.
Some cards let you redeem any amount, while others require a minimum — often $25 or $50 — before you can cash out. If your balance is below the minimum, you have to wait until you earn more. A few cards let you redeem in small increments (as little as $1), which is useful if you want to move the money as soon as it accrues.
Minimum redemption thresholds and expiration dates
Many cards impose a minimum redemption amount, meaning you cannot cash out until your balance reaches that threshold. Chase Freedom cards, for example, require $25 before you can redeem. American Express cards often let you redeem in smaller increments. Check your card's terms to see what the minimum is — it is usually listed in the rewards section of the issuer's website or in your cardholder agreement.
Some cash back does expire if you do not redeem it. Most major issuers (Chase, American Express, Discover, Capital One) do not expire cash back as long as your account remains open and in good standing. However, if you close the card, you typically lose any unredeemed cash back. A few smaller issuers do impose expiration dates — usually two to three years — so check your card's terms if you are not sure.
Cash back on different types of purchases
Cash back rates vary by purchase type, and some purchases earn nothing. Most cards earn cash back on everyday purchases like groceries, gas, restaurants, and online shopping. Some cards also earn cash back on travel, utilities, or phone bills.
Purchases that typically do not earn cash back include balance transfers, cash advances, fees (annual fees, late fees, foreign transaction fees), and payments to other credit cards. If you use your credit card to pay another credit card bill, that payment does not earn cash back. Similarly, if you use your card to withdraw cash from an ATM, that is a cash advance and earns no cash back — it also carries a fee and a higher interest rate.
Some merchants code their transactions in ways that affect your cash back rate. For example, a grocery store that also sells gas might code the gas pump as a gas station rather than a grocery store, so you earn the gas rate instead of the grocery rate. This is rare and usually works in your favor, but it is worth knowing that the merchant's coding, not your intent, determines the category.
Tax implications of cash back
Cash back is technically taxable income in the year you receive it. However, the IRS generally does not require issuers to report cash back to you or to the tax agency unless it exceeds a certain threshold — typically $20,000 in a year and 200 transactions, though this varies. Most households earn far less than that, so they do not receive a tax form.
If you do receive a 1099-INT or similar form from your issuer, you are required to report the cash back as income on your tax return. In practice, many people do not report small amounts of cash back, and the IRS rarely pursues it. However, the safest approach is to report it if you receive a form, and to keep records of your cash back in case you are audited.
Comparing cash back cards to other rewards
Cash back is straightforward because it is already in dollars. Points and miles require you to convert them into travel or merchandise, and the conversion rate is not always clear. A point might be worth 1 cent, or it might be worth less if you redeem it for a low-value item. Cash back removes that uncertainty — 1% cash back is always worth 1 cent per dollar spent.
Travel rewards cards can offer better value if you travel frequently and know how to maximize point redemptions. A card that earns 3 points per dollar on travel might be worth more than a 2% cash back card if you can redeem points for premium airline seats or hotel upgrades. But if you do not travel or do not want to track redemption rates, cash back is simpler and more predictable.
Frequently Asked Questions
Do I have to pay a fee to earn cash back?
No. Cash back accrues automatically when you use the card. Some cards charge an annual fee, but that is separate from cash back — you earn cash back whether or not the card has an annual fee. Many cards with cash back have no annual fee at all.
What happens to my cash back if I close the card?
Most issuers let you redeem your cash back before you close the card. If you close the card without redeeming, you lose the unredeemed balance. Redeem your cash back before you cancel, or request a final redemption when you close the account.
Can I use cash back to pay my credit card bill?
Yes. Most issuers let you redeem cash back as a statement credit, which reduces your next bill. Some also let you apply cash back directly to your current balance. Check your issuer's redemption options to see which methods are available.
Do rotating category cards earn cash back automatically?
The categories rotate automatically, but you usually have to activate each quarter's bonus category in your issuer's app or website. If you do not activate it, you earn only the base rate (usually 1%) on that category. Activation takes less than a minute and is free.
Is there a limit to how much cash back I can earn?
Most cards have no cap on cash back. You can earn as much as you spend. A few premium cards cap cash back at a certain amount per year, but this is rare and usually only applies to specific categories. Check your card's terms if you spend heavily in one category.