Affiliate Programs and the Hidden Cost of Revenue-Based Fees

Apps that manage affiliate programs are generally priced in two distinct categories, and at scale, the difference between them becomes significant. For merchants running high-performing programs, focusing on subscriptions hides the much larger expense: revenue-based fees. Many affiliate apps charge a percentage of your total sales volume, not the commissions you actually pay out.

How affiliate programs charge you: two very different fee models

There are two common fee structures across affiliate programs. Revenue-based fees are calculated on the subtotal of all affiliate sales, whereas Commission-based fees are only calculated on the commission you actually pay out to your affiliates. As your store scales, the gap widens fast

Example: An affiliate program earning $100,000 in monthly sales

Let’s imagine that your store generates $100,000 of affiliate-driven sales in a month. At a typical 10% commission rate, you’re already paying out $10,000 to your affiliates. Below you can find a comparison of the two fee models applied to that same program:

The other hidden layer of affiliate programs: payment processing fees

Many affiliate programs advertise “automated payouts” as a core feature, but automation covers the workflow (approving referrals, triggering payouts, and logging the records). It often doesn’t cover the actual cost of transferring the payment. Most affiliate programs that support automatic payouts are integrated with industry-leading payout processors like PayPal and Wise.

However, those third-party payment processors have their own fees they charge on every transfer, which is separate from what you’re already paying the app in subscription and platform fees. Since those charges come from PayPal or Wise, rather than the affiliate platform, it rarely shows up on a pricing page.

Individually, these fees seem small. Across dozens or hundreds of monthly payouts, they add up quickly, and they’re easy to miss when comparing advertised prices. UpPromote offers PayPal and Wise payouts, but those processor fees sit on top of the 2% revenue fee rather than being included.

The true cost of affiliate program fees

Same affiliate program, same payouts, same affiliates. The only difference is how the platform calculates its fee, and that calculation alone can cost as much as 5× more on a revenue-based model. That gap isn’t a one-time difference; it repeats every billing cycle, which is how a few percentage points on paper turn into a five-figure gap over a year.

Your actual fee exposure scales with your commission rate, so it’s worth knowing where your program sits relative to your industry. Research cited in Shopify’s affiliate marketing guide puts typical commission rates at roughly 8–15% for fashion and apparel, 8–15% for health and wellness, and 10–18% for beauty and personal care, with most other consumer categories landing in a similar range. The higher your commission rate, the smaller your margin, so choosing between commission-based and revenue-based fee models becomes a crucial step when evaluating affiliate programs.