The team behind Marketplace Fee Calculator
Marketplace Fee Calculator was built with a single goal: give online sellers the clarity they need to make profitable decisions. Selling across multiple platforms means navigating a maze of different fee structures -- percentage-based commissions, fixed fees, tiered seller levels, payment processing charges, and optional add-ons. We believe every seller deserves to know exactly what they'll earn before listing an item.
Our calculator covers 24 marketplaces across 8 regions worldwide, from major platforms like eBay, Amazon, and Etsy to specialized marketplaces like StockX, GOAT, and StubHub. Whether you're a casual reseller or a full-time e-commerce business, we provide the fee transparency you need.
We are a team of e-commerce professionals who have spent years selling on these platforms ourselves. Our firsthand experience as sellers on eBay, Amazon, Poshmark, StockX, and other marketplaces gives us practical insight into how fees impact real-world profitability.
This isn't just a calculator built from documentation -- it's built from experience. We've dealt with unexpected fee changes, navigated regional differences, and learned the nuances that official fee pages don't always make clear. That experience directly informs how we build and maintain this tool.
Every fee rate is cross-referenced against official marketplace documentation and verified through real seller accounts. We don't guess -- we verify.
Marketplace fees change. We monitor all 24 platforms for fee updates and revise our calculations promptly. Each marketplace page shows when its data was last verified.
From eBay store plan discounts to GOAT seller rating tiers, we account for the variables that actually affect your payout -- not just the headline fee percentage.
We publish exactly how we calculate fees for every marketplace. No black boxes. Review our methodology page to see our sources and approach.
Our team combines years of direct selling experience across multiple platforms with deep technical expertise in building financial calculation tools. Key areas of our expertise include:
We take accuracy seriously. Our fee data is sourced directly from official marketplace seller documentation, verified against real seller transactions, and audited regularly. When a marketplace updates its fee structure, we update our calculator and note the change date on the relevant marketplace page.
For full details on how we source and calculate fees, visit our fee calculation methodology page.
Marketplace Fee Calculator is an independent tool and is not affiliated with, endorsed by, or officially connected to any of the marketplaces we cover. Fee calculations are estimates based on publicly available information and our research. Actual fees may vary based on your specific seller account, region, and marketplace policy changes. Always verify with each platform's current fee structure before making business decisions. For full details, see our disclaimer.