Glossary
Strategy & Growth
ROI (Return on Investment)

ROI (Return on Investment)

Definition

The revenue generated by an affiliate program relative to the total cost of running it — used to justify program spend and compare affiliate marketing against other acquisition channels.

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How ROI (Return on Investment) work

Affiliate program ROI = (revenue attributed to affiliates − total program costs) ÷ total program costs × 100. Program costs include commissions paid, platform fees, and management time. Partnero's analytics provide the revenue and commission data needed to calculate ROI accurately.

Why it matters for your program

Affiliate marketing is generally one of the highest-ROI acquisition channels because costs are directly tied to results. However, ROI calculation is often done incorrectly — overlooking platform fees, time costs, or double-counting conversions that would have happened anyway. Getting the calculation right is essential for making informed budget decisions.

CategoryStrategy & Growth
Common inAll affiliate programs
Payout triggerN/A — business metric
Typical rateHighly variable — typically strong
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