Terms of use
Last updated 6 November 2026.
Information, not advice
Feenomics provides calculators and explanations based on fee schedules published by marketplaces, payment processors and carriers. They are for information only and are not tax, legal, accounting or financial advice. Platforms can change fees at any time, and your account may have rates, discounts or restrictions that differ from the published schedule. Always confirm with the platform before relying on a figure.
Accuracy
We take care to read official sources and to date every value, and we correct errors when we find them or when they are reported. We do not guarantee that any figure is free of error or current, and we are not liable for decisions made on the basis of a calculation.
Trademarks
eBay, Etsy, Amazon, PayPal, Stripe, Poshmark, Mercari, Depop, Whatnot, StockX, GOAT, Reverb, Discogs, Grailed, TCGplayer, Vinted, Facebook, USPS, UPS and FedEx are trademarks of their respective owners. Feenomics is independent and not affiliated with any of them.
Use of the site
You may use the calculators for personal and business purposes. You may not scrape the site at a rate that affects other users, republish the rule database as your own, or present our results as official figures from any platform.