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Reference Guide

Affiliate Marketing KPIs

The 12 metrics every affiliate program manager should track — with definitions, formulas, benchmarks, and what each number actually tells you.

EPCEarnings Per Click

The average revenue generated each time a user clicks an affiliate link.

Revenue ÷ Clicks
Benchmark$0.10–$0.50
What it tells you

Publisher profitability — whether sending traffic to your program is worth a publisher's effort.

CVRConversion Rate

The percentage of affiliate clicks that result in a completed purchase or lead.

(Conversions ÷ Clicks) × 100
Benchmark1–5%
What it tells you

Offer quality and landing page effectiveness relative to publisher traffic.

AOVAverage Order Value

The mean revenue per completed order driven through the affiliate channel.

Revenue ÷ Orders
BenchmarkCategory-dependent
What it tells you

Customer quality — higher AOV enables higher commissions while maintaining margin.

CPACost Per Acquisition

Total program cost divided by the number of conversions generated.

Program Cost ÷ Conversions
Benchmark15–30% of AOV
What it tells you

Program efficiency — the actual cost to acquire one paying customer via affiliate.

ROASReturn on Ad Spend

Revenue generated for every dollar spent on affiliate commissions and program costs.

Revenue ÷ Spend
Benchmark3–8× for affiliate
What it tells you

Overall program ROI — whether affiliate is outperforming other paid channels.

GMVGross Merchandise Value

Total transaction value processed through the affiliate channel before returns or cancellations.

Sum of all affiliate-attributed transaction values
BenchmarkNo universal benchmark
What it tells you

Program scale — the total economic footprint of your affiliate channel.

APRActive Publisher Rate

The share of approved publishers who generated at least one click or sale in a given period.

Active Publishers ÷ Total Approved Publishers
Benchmark20–40%
What it tells you

Program health — low APR signals onboarding gaps or weak commission incentives.

PCPublisher Concentration

The percentage of total affiliate revenue attributable to your single largest publisher.

Top Publisher Revenue ÷ Total Revenue
Benchmark<30% from one source
What it tells you

Dependency risk — high concentration means one partner departure can crater the channel.

NCRNew Customer Rate

The proportion of affiliate-driven buyers who are first-time purchasers from your brand.

New Buyers (via affiliate) ÷ Total Buyers (via affiliate)
Benchmark40–60%
What it tells you

Incrementality — whether affiliate is growing your customer base or cannibalizing direct.

CCTClick-to-Conversion Time

Average hours elapsed between an affiliate click and a completed purchase.

Avg(Purchase Timestamp − Click Timestamp)
BenchmarkVaries by AOV
What it tells you

Funnel length — longer windows may require extended cookie durations to capture attribution.

RRReversal Rate

The percentage of commissions that are reversed due to returns, fraud, or chargebacks.

Reversed Commissions ÷ Total Commissions
Benchmark<5%
What it tells you

Fraud and return risk — high reversal rate erodes publisher trust and signals program abuse.

NERNetwork EPC Rank

Your program's EPC relative to the average EPC across comparable programs on the same network.

Your EPC ÷ Network Average EPC
BenchmarkTop quartile (>1.0×)
What it tells you

Competitiveness — publishers use this to decide which programs deserve their premium placements.

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