Net After Fees — know exactly what you keep — before you list.
Free seller fee calculators for eBay, PayPal, Etsy and Mercari. Every rate is sourced from the platform's own fee page and dated, so you never price off a stale number.
Why another fee calculator
Because most of them are quietly wrong. Marketplace fees change, calculators do not get updated, and you end up pricing a listing off a number that stopped being true a year ago.
The clearest example: plenty of tools still show Mercari at 0% seller fees. Mercari brought a 10% selling fee back on 2025-01-06. Price against 0% and every single sale quietly costs you 10%.
So every number here carries the platform's own source link and the date we last checked it. If a rate is uncertain, we say so instead of rounding it into a clean-looking answer. If we cannot confirm a rate from the platform itself, that calculator does not ship at all.
Not published yet, for exactly that reason: poshmark, depop — we could not confirm every fee from a primary source.
What should this become?
The calculator is free and stays free. What gets built on top of it is not decided yet — so rather than guess, we are asking. Tick whatever is actually true for you. One tick is one vote.
We keep your email address and which boxes you ticked. That is the whole list — no tracking pixels, no ad networks, nothing sold on. You will hear from us only when something has actually been built that is worth telling you about.