Affiliate Program: How Tracked Commissions Actually Work

An affiliate program pays independent publishers a commission for conversions they generate through tracked links. The affiliate places a unique link, a visitor clicks it, and if that visitor converts inside a defined window, the conversion is credited and a commission becomes payable.

The mechanism is tracking rather than introduction, and the relationship is usually transactional. That is what separates an affiliate programme from a referral partnership, where a named person introduces a named prospect and often stays involved.

Commission payable

Commission = attributed net revenue × commission rate, or a fixed amount per validated conversion.

Attributed means credited under your attribution model and inside your cookie window. Net means after refunds and cancellations, and often after taxes and payment fees. Validated means the conversion survived your review period. Each qualifier changes the amount owed, and each should be written into the terms rather than assumed.

Earnings per click

EPC per hundred clicks = (total affiliate earnings ÷ clicks) × 100.

This is the number affiliates themselves use. They are choosing between programmes competing for the same traffic, and a programme with a high commission rate but poor conversion can offer a worse EPC than one with a modest rate and a strong landing page.

These numbers are invented to demonstrate the arithmetic and are not benchmarks or a published rate card.

Commission. An affiliate drives a conversion worth twelve thousand rupees in net first-year revenue. The rate is twenty percent of net first-year revenue. Commission = 12,000 × 0.20 = 2,400 rupees. If the customer cancels inside the validation period, the commission is not approved, so nothing is clawed back later.

Earnings per click.The same affiliate sent 4,000 clicks over a quarter and earned 18,000 rupees across nine conversions. EPC per hundred clicks = (18,000 ÷ 4,000) × 100 = 450 rupees. The denominator here is clicks, not visitors and not impressions, which matters because those three numbers can differ substantially depending on how the affiliate's placement works.

It buys distribution you do not own from people who already have an audience. Review sites, newsletters, video creators, and comparison pages have attention in your category, and an affiliate programme is a way of paying for outcomes from that attention rather than paying for impressions in advance.

The decision it drives is where marketing spend goes at the margin. Because payment follows conversion, an affiliate programme carries less upfront risk than advertising. The catch, and it is a serious one, is that paying on last-click conversion rewards being present at the end of a journey, which is not the same as having caused it.

Confusing attribution with incrementality

An attribution report tells you which touch came last on journeys that already happened. It cannot tell you whether the conversion would have occurred anyway. The only honest answer comes from suppression: turn off a set of placements for a period and see what happens to total conversions.

Allowing brand-term bidding

An affiliate bidding on your own brand name in search advertising intercepts people who were already looking for you and charges a commission for it. This is preventable by explicit policy and monitoring, and expensive to leave unaddressed.

Paying before validating

Fast payouts are attractive to affiliates and dangerous to the vendor. A stated validation period lets refunds surface and fraud checks run before money leaves, and it avoids clawbacks, which damage relationships far more than a known delay.

Ignoring coupon leakage

Discount-code sites capture customers at the moment of purchase, often after the customer opened a new tab to look for a code. The commission is real, the incremental revenue frequently is not, and the discount is paid twice.

Measuring conversions instead of customers

Affiliate channels vary widely in the quality of customer they produce. Without retention data attached to the affiliate identifier, a programme can spend years optimising for signups that leave in month two.

A healthy programme has published terms covering the cookie window, attribution, brand-term bidding, and validation; a small number of affiliates who genuinely create demand rather than intercept it; retention among affiliate-sourced customers that resembles the rest of the base; and at least one incrementality test on record.

A troubled one shows growing attributed revenue with flat total revenue, concentration in coupon and brand-term placements, payouts made before refunds can appear, and no way to tell which affiliates produce customers who stay. The most useful diagnostic question is simple: what would happen to total revenue if the top affiliate stopped tomorrow?

Storing the affiliate identifier and the click date on the customer record turns an affiliate programme from a marketing report into something you can audit. It lets you reconcile payouts against customers who actually stayed, compare retention by affiliate, and spot the partner whose conversions refund at an unusual rate before another quarter of commission has been paid.

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