commission mechanics
Earnings Per Click (EPC)
The single number that tells you what each visitor you send to a program is actually worth.
What is Earnings Per Click (EPC)?
Earnings per click (EPC) is the average revenue generated for every click on your affiliate link, calculated by dividing total commissions earned by total clicks sent over a given period.
Importance of Earnings Per Click (EPC)
EPC is the only metric that normalises for the differences between programs with different commission rates and different conversion rates, making it the only honest basis for comparing your actual performance across a portfolio. A program with a 40% commission rate that converts at 0.5% produces a lower EPC than a program with a 20% commission rate that converts at 4%. Commission rate alone cannot tell you this; EPC does.
Earnings Per Click (EPC) In Practice
EPC is the number that determines whether a program is worth the real estate it occupies in your content. Calculate it by dividing commissions earned by clicks sent — if you drove 500 clicks to a program last month and earned $350, your EPC is $0.70. That figure lets you rank every program in your portfolio on equal footing, regardless of their commission structures or product price points. Affiliate networks often display a network-wide EPC for each program — an average across all affiliates promoting it — which gives you a benchmark before you have your own data. Use it as a directional signal only. Network EPC includes affiliates running paid traffic campaigns and affiliates with large targeted email lists, whose conversion rates may differ dramatically from a content-based affiliate's. Your own EPC, tracked over at least 90 days and 1,000+ clicks, is the only figure that meaningfully guides your content investment decisions. EPC also varies by traffic source within the same program — email subscribers typically produce a 3–5× higher EPC than cold organic search traffic for most affiliate offers, because the trust relationship is different.
Earnings Per Click (EPC) Best Practices
- →Calculate your own EPC per program per traffic source — network-reported EPC averages include affiliates whose traffic profile may differ significantly from yours.
- →Track EPC over at least 90 days and 1,000 clicks before drawing conclusions — small samples produce statistically unreliable averages that lead to bad portfolio decisions.
- →Use EPC to prioritise content placement — a program with a $2.00 EPC deserves more prominent placement than one with $0.30 EPC, regardless of how the commission rates compare.
- →Segment EPC by traffic source — the same program may show a $1.50 EPC from your email list and $0.25 from organic search, which should change where and how prominently you feature it.
- →When EPC drops on a previously stable program, investigate before assuming it's a traffic quality issue — merchant landing page changes, pricing increases, or seasonal factors often cause EPC shifts that content changes cannot fix.
Example of Earnings Per Click (EPC)
You promote both GreenGeeks and Bluehost through your web hosting content. Over 90 days, GreenGeeks generates 800 clicks and $560 in commissions — an EPC of $0.70. Bluehost generates 1,200 clicks and $660 in commissions — an EPC of $0.55. Despite Bluehost receiving more clicks and paying more in total, GreenGeeks is the more efficient program: each click sent to GreenGeeks earns 27% more than each click to Bluehost. The right response is to test whether reallocating promotional space from Bluehost to GreenGeeks increases total income — a decision that commission rate comparison would never surface, but EPC comparison makes obvious.
Related Terms
Related Tools & Services
- GreenGeeks Affiliate Program — Example used to illustrate EPC comparison between hosting programs
- Bluehost Affiliate Program — Example used to illustrate EPC comparison between hosting programs
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Frequently Asked Questions
What is EPC in affiliate marketing?
EPC stands for earnings per click. Calculate it by dividing your total affiliate commissions by the total number of clicks your affiliate links received in the same period. If you earned $200 from 400 clicks, your EPC is $0.50. It tells you the average dollar value of each visitor you send to an affiliate program — which is more useful than commission rate or conversion rate alone because it combines both into a single comparable figure.
What is a good EPC for affiliate marketing?
There is no universal benchmark — EPC varies by niche, traffic source, and content type. Email traffic from a warm audience typically produces $1–$5 EPC for well-matched offers. Organic search traffic from commercial-intent queries produces $0.30–$1.50 for most content affiliate programs. Cold social traffic typically produces $0.05–$0.30. What matters is your EPC relative to your own portfolio and your cost of content production — a $0.50 EPC on a high-traffic article may produce excellent returns even if it is below what other affiliates achieve.
Is the EPC shown in affiliate networks accurate for my site?
Network EPC is an average across all affiliates promoting that program, which may not reflect your results. It includes affiliates running paid search campaigns, affiliates with large email lists, and affiliates with highly targeted niche audiences — all of whom convert at very different rates. Use network EPC as a rough directional signal when you have no personal data. Once you have 90 days and 1,000+ clicks of your own data, your personal EPC is far more useful for portfolio decisions.