ReadyStack · Ecom Seller Toolkit
A fee calculator card for Amazon, eBay, TikTok Shop and Shopify showing referral commission, margin, return on cost, break-even price and the most you can spend on ads per sale.
What you really keep per sale on Amazon, eBay, TikTok Shop and Shopify - side by sideFees keep changing: 4 marketplace rule changes already in 2026 and 2 more dated for December.

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What you really keep per sale: Amazon, eBay, TikTok Shop, Shopify

What you really keep per sale on Amazon, eBay, TikTok Shop and Shopify in the US, UK, Germany, Spain and Japan. Every fee line shows its rule and the official page it comes from.

5 countries (US · UK · DE · ES · JP). Your costs stay in your browser.

Get Pro — $19.99/month Get Pro — $149/year

Free: one marketplace at a time + the listing length checker.

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