Rewards schemes return money to customers, and understanding where that money originates explains the rules and the occasional disappointment.
Affiliate cashback
Sites receive commission from retailers for referred sales and share part of it.
Which is why tracking matters and why it fails.
Ad blockers, cookie settings, opening other tabs and using discount codes found elsewhere can all break attribution.
Why claims are rejected
Returned items, cancelled orders and untracked sessions.
Which are legitimate reasons, and attribution failures are the most common cause.
Most sites have a claims process for missing transactions and it requires order details.
Payment timing
Cashback is generally confirmed only after the retailer's return window closes.
Which means waiting weeks or months.
This is a genuine constraint rather than a delaying tactic.
Card rewards
Funded largely by interchange fees paid by merchants.
Which are capped by regulation in several jurisdictions.
Reward generosity fell measurably in markets where caps were introduced, which demonstrates the funding link directly.
Loyalty schemes
Points programmes funded by retailer margin and by the value of the data collected.
Which is the substantive exchange — the discount is paid for with purchase history.
Two-tier pricing where members pay less has attracted scrutiny about whether the non-member price is genuine.
Point valuation
Points have no fixed value and can be devalued unilaterally.
Which has happened repeatedly across airline and hotel programmes.
Holding large balances carries devaluation risk, which argues for redeeming rather than accumulating.
Expiry
Points and cashback frequently expire after periods of inactivity.
Which is stated in terms and is easy to overlook.
The honest assessment
Rewards are real and are funded by margins that are ultimately included in prices.
Which means they benefit people who would have bought anyway and cost those who spend more to earn them.
Stacking
Combining cashback, a card reward and a discount code.
Which works where the terms permit it and frequently breaks tracking.
Using codes found on the cashback site itself avoids the most common attribution failure.
Tax treatment
Cashback on personal spending is generally not taxable income in most jurisdictions, being treated as a discount.
Which differs for business spending and for rewards not linked to a purchase.
Rules vary and professional advice is appropriate for anything substantial.
Data collection
Schemes generate detailed purchase records.
Which is used for targeting and, in aggregate, sold as market data.
Privacy policies state what is collected and shared, and they are worth reading once.
Reward card interest
Rewards are worthless against interest charges on a revolving balance.
Which is the arithmetic that determines whether a reward card is beneficial.
They benefit people who clear the balance monthly and cost everyone else considerably more than the rewards return.
The summary
Real value, funded by merchant margins and by data, with terms that reward attention.
Sign-up bonuses
Large one-off rewards for opening an account and meeting a spending threshold.
Which are the most valuable part of most reward programmes.
Meeting thresholds through spending you would not otherwise do eliminates the benefit entirely.
Airline and hotel programmes
Points earned on spending and on travel, redeemable against future travel.
Which carry devaluation risk and availability restrictions.
Redemption value varies enormously by booking, and calculating the value per point is straightforward.
Shopping portals
Retailer links through a scheme's own portal to earn additional points.
Which is the same affiliate mechanism under a different name.
Tracking failures occur for the same reasons.
The behavioural risk
Reward programmes are designed to increase spending, and research on this is consistent.
Which means the benefit accrues to disciplined users and the cost to everyone else.
Keeping it simple
One or two schemes used consistently beats many used occasionally.
Which reduces the administrative burden and the chance of losing track of balances.
Redeeming regularly rather than accumulating avoids devaluation and expiry entirely.
The honest framing
These schemes return a small percentage of spending funded by margins built into prices.
Which makes them worthwhile for planned purchases and counterproductive as a reason to spend.
The distinction is the whole of it.
Comparing offers
Cashback rates for the same retailer differ between sites and change frequently.
Which makes checking two or three worthwhile for larger purchases.
Higher rates sometimes come with longer payment periods or lower reliability.
Reliability
Some sites have better tracking and payment records than others.
Which is documented in user forums and consumer reviews.
A slightly lower rate from a reliable site is generally the better choice.
A closing thought
Every pound returned through these schemes was collected somewhere first, generally through the margin on the transaction. That makes them a rebate on planned spending rather than free money, which changes how much effort they are worth.
Used on purchases you had already decided to make, they are straightforwardly worthwhile; used as a reason to buy, they cost more than they return.