About SellerFeeCheck
What this site is
SellerFeeCheck offers free calculators for people who sell online: what a marketplace or payment company charges on a sale, what you keep, and what to charge to keep a set amount. Every calculation runs in your browser.
How we check the numbers
Every fee rate comes from the platform's own published fee page. Each calculator links that page and shows the date we last checked it, and we re-check every rate at least once a month.
The calculation code is covered by automated tests, and each calculator shows the formula and worked examples you can repeat by hand.
Independence
SellerFeeCheck is independent and not affiliated with or endorsed by any marketplace or payment company named on this site.
Who runs SellerFeeCheck
SellerFeeCheck is a trading name of Piggy Pineapple Ltd, a private limited company registered in England and Wales, company number 14385590, registered office 1 Anglers Way, Cambridge CB4 1TZ, United Kingdom. VAT number GB488899780.
Contact
Email hello@sellerfeecheck.com. We read every message but cannot give tax or legal advice.
Our sister companies
Also run by Piggy Pineapple Ltd:
- Cambridge China Bridge: China sourcing and quality checks for UK buyers
- Trust AC: air conditioning and air-to-air heat pumps in the UK
- SiteRound: compliance help for UK small businesses
- UK Charging Solutions: EV charging, solar and battery options for UK business sites
- PaycheckHours: free time card and work hours calculators
Run by a separate company: