Cash back on a credit card is a reward your issuer pays you — usually between 1% and 5% of each qualifying purchase — as an incentive to use the card, and you collect it as a balance you later redeem for a statement credit, a deposit to a bank account, or a gift card. The promise is written into your cardholder agreement, which makes it a binding part of the credit product. The Consumer Financial Protection Bureau monitors these programs under federal consumer financial law and has warned issuers that hiding the conditions for earning or keeping rewards may violate the prohibition on unfair or deceptive practices.1Consumer Financial Protection Bureau. CFPB Takes Action on Bait-and-Switch Credit Card Rewards Tactics
How You Earn Cash Back
Three common structures determine the rate you earn, and the right choice depends on how you spend.
Flat-Rate Cards
A flat-rate card pays the same percentage on every purchase, no matter where you shop. The standard flat rate has crept up over time: 1% was once the norm, then 1.5% became common, and some cards now pay 2% on everything.2TD Bank. What Is Cash Back on a Credit Card? Spend $3,000 in a month on a 2% card and you earn $60, with no categories to track.
Tiered Cards
Tiered cards pay different rates on different kinds of purchases. A typical setup might pay 3% on dining, 2% on groceries, and 1% on everything else. The issuer decides which tier a purchase falls into based on how the merchant is classified, not what you actually bought. To come out ahead with a tiered card, most of your spending needs to land in the higher-earning categories.
Rotating Category Cards
Rotating category cards offer an elevated rate, often 5%, on specific types of purchases that change every quarter. These programs usually require you to activate the bonus category each quarter through the issuer’s website or app, and they cap the amount of spending that earns the bonus rate. A $1,500-per-quarter cap is common; spending above that drops back to the base rate of around 1%.3Discover. Discover 5% Cash Back Calendar
What Actually Counts as a Qualifying Purchase
Whether a purchase earns at the bonus rate, the base rate, or nothing at all depends on how the card network sees the transaction, not what the receipt says.
Merchant Category Codes
When you swipe or tap, the card network identifies the merchant with a four-digit Merchant Category Code (MCC). The issuer uses that code to decide whether the purchase qualifies for a bonus category. The code reflects the merchant’s primary business, not what you bought. Buy groceries at a big-box store classified as a warehouse club rather than a grocery store, and the purchase may not earn the grocery bonus even though you only bought food. A gas station with an attached convenience store may be coded either way depending on which side of the business brings in more revenue.
Transactions That Never Earn Cash Back
A few kinds of transactions are excluded from every cash back program:
- Cash advances. Withdrawing cash from an ATM with a credit card is treated as a loan. These transactions typically carry a higher interest rate than regular purchases and start accruing interest immediately, with no grace period.
- Balance transfers. Moving debt from one card to another is a debt-management tool, not a purchase, so it earns no rewards.
- Fees. Annual fees, late payment penalties, returned payment fees, and foreign transaction fees are not purchases and do not generate cash back.
Watch Out for Convenience Fees
Some landlords and utility companies accept credit cards but add a convenience fee of around 2% to 3% to cover their processing costs. That fee can wipe out the reward. Pay $2,000 in rent with a 1.5% cash back card and you earn $30, but a 2.5% convenience fee costs $50 — leaving you $20 worse off than paying by check or bank transfer.
How You Redeem Cash Back
Earning rewards is only half of it. Most issuers offer several redemption options through their website or app.
Statement Credits and Deposits
A statement credit applies your cash back directly against your card balance, reducing what you owe. A statement credit usually does not count as a payment, so you still need to make at least your minimum payment separately to avoid late fees and delinquency. You can also link a checking or savings account and transfer the rewards there as a direct deposit, giving you liquid cash. A few issuers still mail paper checks, though that option is becoming less common.
Gift Cards and Point Conversions
Many issuers let you trade cash back for gift cards from various retailers through their portal, typically at one cent of cash back per cent of gift card value. Some cards with flexible point systems also let you convert cash back into travel credits or transfer it to airline and hotel loyalty programs, where the value per point can sometimes exceed one cent if you redeem strategically for premium travel.
Minimum Redemption Thresholds
Some issuers require you to build up a minimum balance, often $25, before you can redeem anything.4Discover. How Does Cash Back Work on Credit Cards? Earning and Terms Others let you redeem any amount at any time. Check your card’s terms so you know whether your rewards are ready to use or locked until they reach the threshold.
Returns Reduce Your Rewards
When you return a purchase for a refund, the cash back you earned on it is typically deducted from your rewards balance. The adjustment happens automatically when the refund posts. If you have already redeemed most of your cash back and then make a large return, your rewards balance can temporarily drop to zero or go negative until new purchases rebuild it.
Why Carrying a Balance Erases the Benefit
Cash back only pays off if you are not paying interest on a carried balance. The average credit card interest rate in early 2026 runs roughly 19% to 22%, depending on the card and the data source. Carry a $5,000 balance at 20% APR and you will pay around $1,000 in interest over a year. Even a generous 2% cash back rate on that same $5,000 in spending returns only $100.
To come out ahead, pay the full statement balance by the due date each month. Doing so also preserves the grace period, the window during which new purchases accrue no interest, which most issuers revoke once you start carrying a balance.
Sign-Up Bonuses
Many cash back cards offer a one-time bonus when you open the account and meet a spending requirement in a set timeframe. A common offer might require $500 in spending within three months for a $200 bonus; more premium cards may require $2,000 or $3,000 over three to six months for a larger reward. Once you hit the threshold, the bonus usually posts within one to two statement periods.
These bonuses come with conditions that are not always obvious. The CFPB has flagged practices like churning restrictions that limit how often you can earn a bonus on the same product, and timeframes that are effectively shortened because the issuer starts the clock at approval rather than when you receive and activate the card.5Consumer Financial Protection Bureau. Consumer Financial Protection Circular 2024-07 – Design, Marketing, and Administration of Credit Card Rewards Programs Some issuers also reserve the right to claw back a bonus if you close the account within a certain period after earning it.
When You Can Lose Rewards You Already Earned
Accumulated cash back is not fully yours until you redeem it. If your account becomes delinquent, the issuer may reduce your credit line, suspend card use, or limit your ability to earn or redeem rewards. After roughly 180 days of non-payment, an issuer will typically close and charge off the account, at which point any unredeemed rewards are usually forfeited permanently.6Federal Register. Credit Card Penalty Fees (Regulation Z) – Section: G. Other Consequences to Consumers of Late Payment
Account closure also puts rewards at risk. If you close the account, or the issuer closes it, unredeemed cash back is usually lost unless the cardholder agreement gives you a grace period to redeem after closure. The CFPB has noted that some issuers revoke previously earned rewards when they unilaterally close an account, a practice the bureau has identified as potentially unfair when the closure is not tied to fraud or misconduct.5Consumer Financial Protection Bureau. Consumer Financial Protection Circular 2024-07 – Design, Marketing, and Administration of Credit Card Rewards Programs If you plan to close a cash back card, redeem your full balance first.
Do You Owe Taxes on Cash Back?
Cash back earned on personal purchases is generally treated by the IRS as a rebate or discount on the price you paid, not as income. Because it reduces your purchase price rather than adding to your earnings, you typically do not need to report it on your tax return. A few situations change the picture. A large sign-up bonus that does not require any spending to earn may be treated as taxable income, and the issuer may send you a 1099-MISC if the amount exceeds certain thresholds. Cash back on a business credit card can also affect the deductible cost of business expenses. If you receive a 1099 from your card issuer, report the amount as income on your return.