Marketplace fee calculator

The published rates here were checked against Amazon, eBay and Etsy fee pages on 19 September 2026 and every field stays editable, because marketplaces reprice often. Etsy rates ship blank on purpose: its policy page refuses automated retrieval, so enter your published listing, transaction and payment rates by hand rather than trusting a guess. Each fee line is rounded to the cent half away from zero before summing, the way the marketplaces quote. Break-even price is found by search over item price rather than an algebraic inverse, which stays correct once minimums and band steps are in play, and the search gives up past ten million dollars. Sales tax is pass-through money, not a fee: it rides to the tax authority, so it shapes the eBay fee base but never your payout. This tool prices one marketplace sale; it does not model storage fees, long-term surcharges, returns, or currency conversion.