How the reseller fee calculator works
The calculator applies each platform’s published 2026 US fee schedule to your numbers. It knows which platforms charge on the item price alone (Poshmark) and which charge on the item plus buyer-paid shipping (eBay, Mercari, Facebook, Depop, Whatnot), it applies fixed per-order charges and fee minimums where they exist, and it knows OfferUp retired shipping — and the 12.9% fee that came with it — in September 2025.
Assumptions: eBay is modeled at its standard 13.6% most-categories rate, and Whatnot at its standard 8% commission. Sales tax is excluded (it varies by buyer), so on platforms that also charge fees on tax, real fees run slightly higher. Optional promoted listings, boosts, and your own shipping labels are not included. If you are not sure your asking price is right in the first place, run it through the listing price checker or estimate resale value with the used furniture value calculator.