Why does EPC undercount recurring affiliate programs?

Earnings per click is almost always computed on the first commission a click produces. For a one-time program that's the whole story, but for a recurring program the same click keeps paying every month the referred customer stays subscribed. So a click that shows a modest EPC on its first payment might actually be worth several times more over a year or two. EPC captures the first payment; it misses the annuity behind it. For subscription programs, the honest metric is lifetime value per click, not EPC.

How do I calculate LTV per click for an affiliate program?

Start with the lifetime value of one referred customer: price × commission rate × number of paying months × expected retention. Then multiply by your conversion rate to get LTV per click. A recurring $29/month tool at 20% held for 12 months is about $69.60 per customer — versus a one-time $49 product at 40%, which is $19.60. Despite the lower headline rate, the recurring click is worth more, because it compounds. The two inputs that decide it are retention and how long commissions keep paying.

Are recurring commissions always better than one-time?

No — they're better when customers stay. Recurring only pays while the subscription is active, so a churny audience erodes the advantage fast, and some programs cap the recurring term at 12 or 24 months rather than paying for the customer's lifetime. Refunds and early churn can even claw back commissions you were credited. Recurring wins for products people keep (low churn), promoted to audiences that retain; one-time or hybrid can be safer where retention is uncertain.

How does this change which programs I should promote?

Stop comparing programs on headline commission rate, or even on EPC, across one-time and recurring models — they're not measuring the same thing. Compare LTV per click. A low-churn SaaS or hosting program with recurring commissions can be worth many times an impulse-buy marketplace click, even at a lower rate and conversion. Match it to your audience: buyers who retain make recurring pay; impulse audiences suit short-window programs like Amazon.

Recurring Commissions and LTV: Why EPC Undercounts Subscription Programs

Earnings per click is the metric this whole library keeps coming back to, and for good reason — it folds conversion, commission, and order value into one comparable number. But it has a blind spot, and if you promote any subscription products you're probably falling into it: EPC undercounts recurring programs, often badly.

The blind spot

EPC is almost always computed on the first commission a click produces. For a one-time program — an Amazon product, a physical good — that's the complete picture. The click pays once, and EPC captures it.

For a recurring program, the same click keeps paying every month the referred customer stays subscribed. EPC sees the first month and stops counting. So a SaaS referral that shows a mundane EPC on its first payment might actually be worth five or six times more over the customer's life. The metric isn't wrong; it's just answering a smaller question than you're asking.

The math: LTV per click

The honest metric for recurring programs is lifetime value per click. Build it in two steps:

LTV per referred customer = price × commission rate × paying months × expected retention.
LTV per click = LTV per customer × conversion rate.

Run it and the headline rate stops being the story:

A one-time commission is collected once; a recurring one compounds every month the customer stays. Here a 20% recurring rate on a $29/mo tool overtakes a 40% one-time payout on a $49 product in about four months — and keeps climbing. The catch: recurring only pays while they stay, so churn erodes the top of the curve.

A one-time $49 product at 40% pays you $19.60, once. A recurring $29/month tool at half that rate — 20% — pays about $5.80 a month, which overtakes the one-time payout in roughly four months and reaches about $69.60 over a year. Industry write-ups make the same point with bigger numbers: a SaaS customer at $99/month who stays 18 months is worth around $1,782 in lifetime revenue, versus $297 for a one-time product — the referral is worth nearly six times more. Recurring commission rates commonly run 15–40% (20–30% is typical), and a large share of SaaS programs now use a recurring model, precisely because it aligns everyone with retention.

The lower headline rate is a trap for the eye. What matters is the area under the curve, not its slope on day one.

The churn caveat (read this before you switch everything)

Recurring only pays while the customer stays, so the curve above has a ceiling you don't control: churn erodes the top of it. Three honest cautions:

Retention is the real input. Your effective earnings are the headline rate times how long customers actually stay. High-churn products produce a much lower effective rate than the number suggests; sticky products (premium hosting, infrastructure — often under 5% monthly churn) behave like annuities.
Lifetime vs capped. Some programs pay for the customer's lifetime; many cap the recurring term at 12 or 24 months. Many customers churn before year two anyway, so a "lifetime" promise is worth less than it reads.
Clawbacks. Refunds and early cancellations can reverse commissions you were already credited. If your mental math ignores clawback, your real LTV per click is lower than your spreadsheet.

So don't treat recurring as free money. Treat it as an annuity whose value depends entirely on retention — yours to estimate honestly, then verify against actuals.

How it changes program selection

This reframes a decision most affiliates make on the wrong number. Don't compare programs on headline commission, or even on EPC, across one-time and recurring models — they aren't measuring the same thing. Compare LTV per click, and match it to your audience:

Audiences that retain — businesses, professionals, people adopting tools they'll keep — make recurring pay. A low-churn SaaS or hosting program can out-earn an impulse-buy marketplace click many times over, even at a lower rate.
Impulse and everyday audiences suit short-window programs. This is the other end of the spectrum from Amazon's 24-hour cookie, which is built for buy-now intent, not for compounding subscriptions.

Neither is universally better. The point is to stop letting a headline percentage — or an EPC that quietly stops counting after month one — decide it for you.

Measuring it honestly

The hard part: you can't see month-18 retention in a click report today. So you do two things. Estimate LTV per click up front using a conservative retention assumption, and then tie your referrals to their ongoing revenue so you can replace the estimate with actuals — the same first-party measurement that turns clicks into EPC, extended across time. Track the effective rate per cohort (total paid ÷ total revenue generated), not the headline, and your LTV-per-click numbers get truer every month.

EPC is still the right metric for one-time programs and for comparing pages within a program. For choosing between a one-time and a recurring program, reach for LTV per click instead — and respect the churn that sets its ceiling.

Extend EPC across time: Clickolytics ties clicks to the revenue they produce — the foundation for measuring lifetime value per click, not just the first payment. See how it works →

Frequently asked questions

Why does EPC undercount recurring programs? EPC is computed on the first commission; a recurring click keeps paying each month the customer stays. So EPC captures the first payment and misses the annuity. Use LTV per click for subscription programs.

How do I calculate LTV per click? LTV per customer = price × commission rate × paying months × retention; LTV per click = that × conversion rate. A $29/mo tool at 20% for 12 months (~$69.60) beats a one-time $49 at 40% ($19.60).

Is recurring always better? Only when customers stay. Churn erodes it, terms are often capped at 12–24 months, and refunds can claw back commissions. Recurring wins for low-churn products and retaining audiences.

How should it change program selection? Compare LTV per click, not headline rate or EPC, across one-time vs recurring. Low-churn recurring beats impulse clicks for retaining audiences; short-window programs suit impulse buyers.