How Credit Card Points and Miles Actually Work

A point or mile is a unit of currency issued by a rewards programme. It has no fixed exchange rate to dollars; the issuer sets a redemption rate that varies by redemption method. From the issuer's accounting perspective, a point is a liability on the balance sheet, an obligation to provide future redemption value. This is why programmes have terms permitting devaluation, expiration, and account closure: the liability is open-ended and the issuer manages it through policy.

Points are issued in three ways. Spend-based earning awards points proportional to qualifying purchases at a multiplier the programme defines. Bonus offers award points one-off for an event such as opening an account, hitting a spend threshold, or reaching a status milestone. Programme-to-programme transfers move points between affiliated programmes at a defined ratio.

The unit of account is consistent within a programme. One point in the issuing programme always means one point in that programme. The variability is at redemption: the same one point can be redeemed for different cash-equivalent values depending on the path the cardholder chooses. This single fact, more than any other, is why understanding how points work matters: the path you choose at redemption determines the dollar value you extract.

The earn rate is points per dollar spent. Programmes typically structure earn rates by category: travel, dining, groceries, gas, streaming, and an “everything else” baseline. Higher multipliers in specific categories are not arbitrary. They reflect the programme's view that bonus categories are profitable enough on interchange to fund higher rebates and that the categories incentivise the kinds of card usage the issuer prefers.

Category definitions are programme-specific and often narrower than they appear. “Travel” in one programme may exclude cruises, parking, or non-direct booking sites. “Dining” may exclude grocery prepared foods. “Streaming” may name a specific list of services. Always check the programme's detailed earning category definitions, which appear in the rewards programme terms (a separate document from the Schumer Box).

Redemption converts a point balance into something the cardholder values. Common redemption paths, ordered by typical cents-per-point yield:

• Transfer to airline or hotel partner. Variable yield. Premium-cabin international award flights commonly produce three to seven cents per point; partner hotel stays at peak rates can produce two to three cents per point. Award availability constrains this path.
• Travel portal booking. Fixed yield set by the issuer, typically one cent per point on entry-level cards and 1.25 to 1.5 cents on premium cards. No award-availability risk; the point value is locked in.
• Statement credit / cashback. Fixed yield, almost always one cent per point.
• Gift card or merchandise. Variable but typically below one cent per point. Generally a value-destroying redemption.

The redemption rate matters as much as the earning rate. A card earning at 2 points per dollar but redeemable only at 0.8 cents per point produces 1.6 percent effective return. A card earning at 1.5 points per dollar but redeemable at 2 cents per point produces 3 percent effective return. The earning multiplier is the headline number; the redemption rate is where the value actually lives.

A sign-up bonus is a one-time award of points for opening the card and spending a minimum amount within an introductory window, commonly three to six months. The bonus is contingent: failing to hit the spend threshold within the window forfeits the bonus.

For tax purposes, sign-up bonuses tied to a spend requirement are generally treated as rebates on those purchases rather than as taxable income, per IRS Publication 525. The reasoning: the cardholder paid X dollars for purchases worth X-Y dollars (with Y the rebate value), so the bonus is a price reduction. By contrast, bank-account opening bonuses with no purchase requirement are typically taxable as income and reportable on Form 1099-INT or 1099-MISC. We cover the framework in detail on the rewards and taxes page.

Rewards programmes are not free money. The issuer funds rewards through three channels: interchange revenue (the merchant fee paid on every credit card transaction, typically 1 to 3 percent of the transaction amount), annual fees (where applicable), and net interest income from cardholders who carry balances.

Interchange is the dominant funding source for non-fee rewards cards. Federal Reserve Regulation II caps interchange on debit cards but does not regulate credit-card interchange. Higher-tier rewards cards (premium and category-bonus products) are funded by higher interchange rates negotiated by the network for those product categories.

Federal Reserve research has documented a regressive distributional effect: cardholders who carry balances and pay interest effectively subsidise cardholders who pay in full and earn rewards. Schuh, Shy, and Stavins (2010, FRB Boston) and subsequent Fed research papers have estimated the magnitude of this transfer. The system is structurally a transfer from cash users and revolvers to transactors. This is not a moral judgement on the cardholder; it is an arithmetic feature of the programme's economics that consumers should understand when evaluating the “is this free money” question.

From the issuer's accounting perspective, the point liability is open-ended and grows over time as more points are earned than redeemed. Programmes manage that liability with three policy tools: expiration, devaluation, and partnership changes.

Expiration policies vary widely. Common patterns: no expiration as long as the account is open; expiration after a defined period of inactivity (commonly 18 to 24 months without earning or redeeming activity); hard expiration on a fixed schedule. To check your specific programme, read the programme terms.

Devaluation increases the points required for a given redemption. A premium-cabin international ticket that cost 80,000 points last year may cost 100,000 points this year. This is permitted by programme terms and is the most common form of programme-economic adjustment.

Partnership changes (adding or removing transfer partners, changing transfer ratios) alter the value of points without changing earning or expiration rules. The Department of Transportation is explicit that frequent flyer programmes are administered by the airlines, not by the federal government. There is no federal regulation requiring advance notice of devaluation or restoration of pre-devaluation rates.

Every other page on this site is an expansion of one term in this equation. The cents per point page derives the multiplier on point value. The annual fee math page handles the fee and credits term. The threshold vs cashback page compares this equation against a simple cashback rate. The redemption math page works out which paths produce the highest cents per point.

Two cardholders with identical cards, identical spend, identical category breakdowns, and identical sign-up bonuses can produce annual reward values differing by 50 to 100 percent based on their redemption choices and credit-usage discipline. The product is the same; the outcomes are not. Understanding this is the entire point of working through the maths.