Which platform keeps the most?
Stop comparing headline percentages. Enter your real numbers once and every platform is ranked by the only number that matters: net profit per sale — and per month at your volume.
Ranking
| # | Platform | Platform fees | Net / sale | Margin | Net / month |
|---|
Assumes free shipping to the buyer, US rates, Home & Kitchen / most categories, and the same advertising and return rates everywhere. For category-specific rates, use each platform's own calculator — the ranking links are below.
What flips the winner
Volume. Shopify's $39 a month is $0.13 a sale at 300 units and $1.30 at 30 units — drag Monthly units down and watch Shopify fall down the table. Amazon's $39.99 Professional plan behaves the same way.
The TikTok affiliate switch. With affiliate at 10%, TikTok sits near the bottom of most rankings; turn it off and TikTok's bare 6% referral jumps near the top. The switch is the decision, not the headline rate.
Price level. At $10, per-order fees ($0.30–$0.40) and fixed costs dominate and almost every platform loses money on this cost profile; at $100+, percentages dominate and the cheapest percentage wins. The ranking is a function of your price, not a property of the platforms.
Detail pages
See the full fee stack behind any row: Amazon FBA · Etsy · eBay · TikTok Shop · Shopify · Reverse Pricing (what price you need for a target profit on each platform).