By Guadalupe Tofalo, Director of Affiliate
When your best-performing channel is held to 4x the standard of everything else, it’s not thriving. It’s surviving.
According to Rakuten.com Affiliate marketing averages a 12:1 return on ad spend. Google Ads averages about 3:1. If you’re in performance marketing, those numbers should make you pause. Not because affiliate is your star channel, but because of what that gap is actually telling you.
The number reflects constraint, not performance.
A 12:1 ROAS sounds like efficiency. What it actually reflects is how narrowly most programs are being run. To consistently hit that number, you can only fund one kind of affiliate partner: the kind that shows up at the bottom of the funnel. Coupon sites. Loyalty programs. CPA networks. These partners are good at one thing: capturing a conversion that was already going to happen. They are not building your brand, educating your customer, or influencing a decision. They are standing at the finish line collecting a check.
If that’s your affiliate program, you’re not running affiliate. You’re running a last-click attribution machine.
And the timing could not be worse. As AI-generated answers increasingly replace search results, the content publishers brands have been underpaying or ignoring are exactly what AI is learning from and citing. Last click is a difficult metric to support when the click is disappearing.
This is a structural problem, not a channel problem.
When affiliate is held to a ROAS target that’s three to four times higher than every other channel in the marketing mix, the math eliminates the most valuable partners first. Comparison publishers, review sites, editorial content, “best of” lists, the affiliates that actually shape purchase intent, cannot survive under a flat CPA model that treats every conversion the same, regardless of where in the customer journey it happened.
So they don’t play. They deprioritize your program or opt out entirely. What remains is high volume and low lift. A partner mix that was never designed to grow your business, only to harvest it.
Fintech is the clearest example of how costly this gets. The entire purchase process in financial services is research. Before someone opens a new account or applies for a card, they read comparisons. They check listicles. They look at reviews. And increasingly, when they ask an AI assistant for a recommendation, the sources being cited are affiliate content publishers. The brands winning in fintech affiliate are not the ones with the lowest CPAs. They are the ones who fund the full funnel and recognize that a comparison site influencing a decision in week one deserves different treatment than a CPA network showing up in week six. Most programs still expect to pay both the same rate.
You reward cheap last-click volume, you get low incrementality, low quality volume. A program that looks clean on a spreadsheet and does very little for long-term growth and partners that are only motivated by an easy win.
The measurement is the problem.
If your Google Ads account delivers 3:1 ROAS, that’s a win. If your affiliate program comes in at 3:1, the CPAs don’t get approved. The agency gets told to tighten the model. Spend gets pulled from anything that doesn’t convert fast enough.
That pressure doesn’t make the program more efficient. It makes it smaller. It eliminates the partners with the highest incremental value and concentrates investment in the ones who were going to capture that conversion regardless. The program becomes less expensive and less useful at the same time.
What changes when you measure it differently.
Give affiliate a blended ROAS goal that reflects the rest of your portfolio. The same standard you hold your paid search and paid social teams to and that opens up the full partner mix. Content publishers. Comparison sites. Influencers. Niche editorial. These partners bring in customers who are earlier in the funnel, less likely to have converted otherwise, and more likely to stay.
Use networks, coupon and loyalty for efficiency. Use content and comparison for incrementality. Stop treating every affiliate partner as interchangeable and start attributing value based on where in the funnel they contribute. The program gets more nuanced. It also gets significantly more valuable.
Affiliate works. The question is whether you’re letting it.
Many marketing executives discard affiliate as low incrementality, low quality, fraud ridden channel. However, the data is not ambiguous, a well-structured programs outperforms most channels on long-term customer quality. But how well it works depends entirely on what you’re measuring and what you’re willing to fund.
So before you blame the channel, ask the harder question: is your organization measuring affiliate in a way that actually lets it grow?
