Seller Fee Calculator

Marketplace fee changes in 2026

Seller fees changed several times this year. Here is what changed, when, and where it was announced, plus a calculator using the current rates.

What do you want to know?

The starting numbers are an example, not market data. Replace them with your own. Sales tax matters because eBay, Etsy, Depop and Whatnot charge part of their fees on it. US sellers and US marketplaces only.

Pro: profit tracking across every platform

Upload the sales CSVs you already export from eBay, Etsy, Poshmark, Mercari, Depop, TikTok Shop and Whatnot. Pro matches each sale to its fees and your item cost and shows true profit per item, per platform and per month in one table. It also emails you when a platform you sell on changes its fees.

This is an early project. We will only email you about the Pro version.

Change log

Rates last checked 2026-10-18. eBay's fee page shows the current rates without dates, so we list eBay's numbers in the calculator but not here.

Questions

Did TikTok Shop raise its referral fee to 8%?

Trade guides say so, from August 4, 2026. TikTok's public referral table still shows 6% for most categories, so we treat 8% as unconfirmed.

What changed on Whatnot in 2026?

Commission now depends on your sales over four weeks and on category, from September 21, 2026. A 0% commission promotion covers the part of an order above $1,500 in some categories.