A commission is the percentage of a sale paid to whoever made the sale happen. Whether you're a salesperson, affiliate marketer, real estate agent, or creator promoting affiliate products, the basic formula stays the same.
Example: You sell a $500 digital product at a 15% affiliate commission rate. Your commission is $500 × 0.15 = $75. The seller keeps $425.
The calculator above handles three common scenarios: a flat percentage on every sale (Simple), a guaranteed base salary plus commission on each sale (Base + Commission), and changing rates based on how much you sell (Tiered).
Estimate payouts before deals close. See how tiered structures change at different sales volumes.
Calculate earnings from promoted products. Compare commission programs side by side before joining.
Figure out commission splits on listings, plus what the seller actually walks away with after the sale.
Project earnings from brand partnerships and affiliate products before signing on with a new program.
Commission rates change a lot depending on what you sell and how. Here's a quick benchmark for 2026: