About Fliprofit

Fliprofit is a small, independent site that shows resellers what they actually keep from a sale after marketplace fees, shipping and sales tax.

What the site does

• Free fee and profit calculators for 12 US marketplaces: eBay, Poshmark, Mercari, Whatnot, Depop, Etsy, Facebook Marketplace, Amazon, Grailed, Reverb, TCGplayer and TikTok Shop. They run in your browser; no signup, and the numbers you type aren't sent to us.
• A side-by-side fee comparison across every platform, plus fee guides and reseller tools such as crosslister price comparisons.
• A paid Profit Tracker spreadsheet for logging every flip.

How fees are sourced and checked

• Every rate comes from the marketplace's own help or fee pages. Each calculator lists those source links and the date they were last checked (currently October 24, 2026).
• Fee formulas are covered by automated tests, including worked examples published by the platforms themselves, and the tests must pass before the site is deployed.
• Crosslister prices on the tools pages come from each app's official pricing page, with the checked date shown on the page.
• When a platform changes its fees, we update the calculator and its checked date. If you spot a number that doesn't match an official page, email us and we'll fix it.
• Fliprofit isn't affiliated with any marketplace listed. Nothing here is tax advice.

How the site makes money

The calculators are free. The site is funded by sales of the Profit Tracker and Bundle (checkout is handled by Polar) and by affiliate links: some links to partner tools may earn us a commission at no extra cost to you. Those links are marked and explained in our affiliate disclosure. Affiliate relationships don't change fee numbers or prices shown.

Contact

Email [email protected] with corrections, questions or feedback.

Find Fliprofit on Facebook and Reddit. See also our privacy policy.