Cash back earned from credit card spending is not taxable. The IRS treats it as a rebate that reduces the price of what you bought, not as income. That rule covers cash back, points, miles, and statement credits as long as you had to spend money to earn them. Bonuses that don’t require spending, like a bank sign-up offer or a referral payment, are a different story and do get taxed.
Why Credit Card Cash Back Isn’t Income
The IRS has consistently held that a rebate from the party you paid is an adjustment to the purchase price rather than an addition to wealth, so it stays out of gross income.1Internal Revenue Service. PLR-141607-09 When your card pays 2% back on a $50 purchase, the IRS views it as though the item cost $49. There’s no gain to tax.
The form of the reward doesn’t change the analysis. Airline miles, hotel points, statement credits, and checks from your issuer all sit under the same rebate umbrella, provided you had to spend to earn them. A card paying 5x points on groceries is giving you a bigger rebate on groceries, not paying you for a service.
This is why sign-up offers structured around a spending threshold, such as 50,000 points after $4,000 in purchases within three months, stay non-taxable. The bonus is tied to purchases, so it behaves like a volume rebate.
When a Reward Does Become Taxable
The rebate treatment falls apart the moment the reward isn’t linked to spending. If a bank pays you $300 for opening a checking account and keeping a minimum balance for 90 days, that payment doesn’t reduce the price of anything. Economically, the bank is paying you to park your money there, which looks like interest, and the IRS taxes it that way.
The common situations where rewards cross into taxable territory:
- Bank account sign-up bonuses paid for opening a checking, savings, or brokerage account and hitting a deposit or balance requirement. These are generally taxed as interest.
- Referral bonuses for getting friends or family to open accounts. You’re being paid for a service rather than getting a discount, so the payment is miscellaneous income.
- Sweepstakes and promotional prizes from a card issuer’s contest. Prizes and awards are ordinary income regardless of amount.
- Any bonus paid simply for signing up with no minimum spending requirement, which could be treated as income rather than a rebate.
The dividing line is straightforward: did you have to buy something to earn the reward? If yes, rebate. If no, income. Many banks bundle both kinds of offers, so you can have a non-taxable spending bonus on a credit card and a taxable balance bonus on a checking account from the same institution in the same year.
Tax Forms You May Get
When a financial institution pays you a taxable reward, it reports the payment to you and to the IRS. The form depends on how the payment is classified.
Form 1099-INT
Bank account bonuses tied to balance or deposit requirements are usually reported as interest on Form 1099-INT. Federal law requires anyone paying $10 or more in interest during the year to file a return reporting it.2Office of the Law Revision Counsel. 26 USC 6049 – Returns Regarding Payments of Interest A $300 checking bonus shows up in Box 1 of your 1099-INT, and you include it as interest income on your federal return.3Internal Revenue Service. About Form 1099-INT, Interest Income
Form 1099-MISC or 1099-NEC
Referral bonuses and certain promotional payments come through on Form 1099-MISC (Box 3, other income) or Form 1099-NEC. The reporting threshold on these forms is $600, and institutions have to send them to recipients by January 31 of the following year.4Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC (04/2025)
If No Form Arrives
A missing 1099 doesn’t erase the tax. If your bonus fell below a reporting threshold or the bank simply didn’t send the form, you still owe tax on the income. The IRS expects you to report all taxable income whether or not it appears on a 1099.5Internal Revenue Service. IRS Tax Tip 2003-25 – What to Do if You Haven’t Received a Form 1099 Keep your own record of bonuses through the year. If you’ve already filed and later realize you missed one, file an amended return on Form 1040-X.
Cash Back on Business Purchases
Using a rewards card for business expenses doesn’t change the rebate treatment, but it does affect what you deduct. Because the reward reduces your purchase price, it also reduces the deductible amount of the expense.1Internal Revenue Service. PLR-141607-09
Charge $1,000 in office supplies on a 2% card and your actual cost is $980. That’s what you deduct, not $1,000. The same logic applies to depreciable property: a $5,000 laptop with $100 in cash back has a depreciable basis of $4,900.6Internal Revenue Service. Publication 551, Basis of Assets Many small business owners ignore the adjustment because the amounts are small and the IRS rarely pursues it, but technically deducting the pre-rebate figure overstates the expense.
What Happens If You Don’t Report a Taxable Bonus
If a bank sends you a 1099 and you leave the amount off your return, the IRS will eventually match its copy against your filing. The penalties add up faster than most people expect.
The accuracy-related penalty for understating income tax is 20% of the underpayment.7Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments On top of that, the failure-to-pay penalty runs 0.5% of the unpaid tax for each month or partial month it stays unpaid, up to a 25% cap.8Internal Revenue Service. Failure to Pay Penalty Interest accrues on the balance too. If you didn’t file at all, the failure-to-file penalty is 5% of the unpaid tax per month, also capped at 25%.9Internal Revenue Service. Failure to File Penalty For a $500 bank bonus, penalties can eventually outrun the tax itself. Reporting a few hundred dollars of bonus income is far cheaper than untangling it later.