Cash back on a credit card is money your card issuer pays you — usually 1% to 5% of what you spend on qualifying purchases — as a built-in reward for using the card. So how does cash back work on credit cards in practice? The percentage, the categories that earn it, and the ways you can claim it are all set in the cardholder agreement you accept when you open the account, which makes the reward a binding part of the credit product. The Consumer Financial Protection Bureau oversees these programs under federal consumer financial law and has warned issuers that hiding 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
Cards use one of three earning structures. Knowing which one you have tells you where to use the card and where not to bother.
Flat-Rate Cards
A flat-rate card pays the same percentage on every purchase no matter where you shop. Common flat rates today run from 1.5% up to 2%.2TD Bank. What Is Cash Back on a Credit Card? Spend $3,000 in a month on a 2% card and you earn $60, regardless of the mix of merchants.
Tiered Cards
Tiered cards pay different rates on different types of purchases. A typical setup might pay 3% on dining, 2% on groceries, and 1% on everything else. The tier a purchase falls into depends on how the merchant is classified in the card network, not on what you actually bought. To come out ahead with a tiered card, most of your spending needs to sit in the higher-earning tiers.
Rotating Category Cards
Rotating category cards offer an elevated rate, often 5%, on categories that change every quarter — groceries and streaming one quarter, gas and restaurants the next.3Discover. Discover 5% Cash Back Calendar These programs usually require you to activate the bonus category each quarter through the issuer’s website or app, and they cap the spending that earns the bonus rate. A $1,500 quarterly cap is common; purchases above that drop to the base rate of around 1%.
What Actually Counts as a Qualifying Purchase
Whether a swipe earns the rate you expect comes down to two things: how the merchant is coded and whether the transaction is a purchase at all.
The Merchant Category Code
When you pay, the card network identifies the merchant with a four-digit Merchant Category Code (MCC) — 5411 for grocery stores, 5541 for gas stations, and so on. Your issuer uses that code to decide whether a purchase earns a bonus rate or the base rate. The code reflects the merchant’s primary business, not what’s in your basket. Buy groceries at a big-box store coded as a warehouse club and the purchase may not earn the grocery bonus, even though you only bought food. A gas station with a large attached convenience store may be coded either way depending on which side generates more revenue.
Transactions That Never Earn Cash Back
- Cash advances. Taking cash from an ATM with a credit card is treated as a loan, not a purchase. It typically carries a higher interest rate than purchases and starts accruing interest immediately with no grace period.
- Balance transfers. Moving a balance from one card to another is a debt tool, not a purchase.
- Fees. Annual fees, late fees, returned payment fees, and foreign transaction fees are not purchases and earn nothing.
Watch the Convenience Fee
Some landlords and utilities accept credit cards but tack on a 2% to 3% convenience fee to cover processing. Even when the charge earns cash back, the fee usually outruns the reward. Pay $2,000 in rent on a 1.5% card and you earn $30; a 2.5% convenience fee costs you $50, leaving you $20 down against paying by check or bank transfer.
Sign-Up Bonuses
Many cash back cards add a one-time bonus for opening the account and hitting a spending target within a set window. A common offer is $200 for spending $500 in the first three months, though premium cards may ask for $2,000 or $3,000 over three to six months in exchange for a larger reward. Once you meet the threshold, the bonus usually posts within one or two statement periods.
Bonuses come with conditions worth reading. The CFPB has flagged cases where issuers denied bonuses based on terms buried in cardholder agreements, including “churning” restrictions that limit how often you can earn a bonus on the same product and timeframes that get shortened because the clock starts at approval rather than at card activation.4Consumer 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 set period after earning it.
How You Redeem Cash Back
Earning the reward is only half of it. Most issuers offer several redemption paths through their app or website.
Statement Credit or Direct Deposit
A statement credit applies your rewards to your card balance, lowering what you owe. One thing to know: a statement credit usually does not count as a payment. You still need to make at least the minimum payment separately to avoid late fees and delinquency.
You can also send cash back to a linked checking or savings account as a direct deposit, which gives you liquid money to use as you please. Paper checks by mail are still offered by some issuers, though the option is fading.
Gift Cards and Point Conversions
Most issuers let you trade cash back for retailer gift cards through their portal. The rate is typically one cent of cash back for one cent of gift card value, with no bonus and no penalty. Cards tied to a flexible point system may let you convert cash back into travel credits or transfer to airline and hotel programs, where the value per point can exceed one cent if you redeem strategically for premium travel.
Minimum Redemption Amounts
Some issuers require you to accumulate a minimum — often $25 — before redeeming anything.5Discover. How Does Cash Back Work on Credit Cards? Earning and Terms Others let you redeem any amount at any time. Check your terms so you know whether your rewards are available on demand or locked until they reach a threshold.
What Can Take Your Cash Back Away
Rewards you have earned are not necessarily yours to keep. A few situations can reduce or wipe out your balance.
Returns
When you return a purchase, the cash back earned on it is normally deducted from your rewards balance when the refund posts. If you have already redeemed most of your rewards and then make a large return, the balance can drop to zero or below until new purchases rebuild it.
Delinquency and Charge-Off
Redemption depends on the account being in good standing. As the account falls further behind, the issuer may cut your credit line, suspend card use, or block earning and redemption. After roughly 180 days of non-payment, the issuer typically closes and charges off the account, and any unredeemed rewards are usually forfeited for good.6Federal Register. Credit Card Penalty Fees (Regulation Z) – Section: G. Other Consequences to Consumers of Late Payment
Account Closure
When an account closes, whether you close it or the issuer does, unredeemed cash back is usually lost unless the cardholder agreement provides a redemption window after closure. The CFPB has noted that some issuers revoke previously earned rewards when they unilaterally close accounts, a practice the bureau has identified as potentially unfair when the closure is not tied to fraud or misconduct by the cardholder.4Consumer Financial Protection Bureau. Consumer Financial Protection Circular 2024-07 – Design, Marketing, and Administration of Credit Card Rewards Programs Before closing a cash back card, redeem your full balance.
Inactivity
Many issuers advertise that rewards do not expire while the account is open, but prolonged inactivity can still put them at risk. A dormant account may be closed, which triggers forfeiture. State unclaimed property laws can also require financial institutions to turn over dormant funds — potentially including unredeemed rewards — to the state after a period of inactivity that generally runs three to five years.
Death of the Cardholder
What happens to a balance at death varies by issuer. Some programs let an executor or authorized representative redeem outstanding rewards within a limited window. Others treat rewards as non-transferable and forfeit them at death. Certain issuers require the account balance to be paid in full before releasing any rewards. If you hold a significant balance, check whether your card’s terms allow transfer or redemption after death, and consider redeeming regularly rather than letting a large balance sit.
Why Paying in Full Is the Whole Point
Cash back only works as a benefit if you are not paying interest on a carried balance. Average credit card interest rates in early 2026 run roughly 19% to 22%. Carry a $5,000 balance at 20% APR and you will pay about $1,000 in interest over a year. A generous 2% card returns just $100 on that same $5,000 in spending — a fraction of the interest cost.
The math almost never works if you carry a balance. To come out ahead, pay the full statement balance by the due date each month. Doing so also preserves the grace period on new purchases, which most issuers revoke once you carry a balance.
Taxes on Cash Back
The IRS generally treats cash back on personal purchases as a rebate or discount, not income. Because it reduces what you paid rather than adding to what you earned, you typically do not report it or pay tax on it.
A few situations change that. A large sign-up bonus, especially one that does not require any spending to earn, may be treated by the issuer as taxable income, and you could receive a 1099-MISC above certain thresholds. Cash back on a business card can also affect the deductible cost of business expenses. If you receive a 1099 from your issuer, report the amount as income on your return.