Same product. Six platforms. One honest answer.

Headline fees lie. Enter your product once — this calculator applies each platform's full 2026 fee stack (referral, fulfillment, payment processing, plan costs), then subtracts your product cost, ads and expected returns, so you see what you actually keep on every marketplace.

Your product

Price & product cost
Factory → you / Amazon, per unit
For FBM / Etsy / eBay / Shopify / TikTok
Reality checks
Spreads monthly plan fees

Net profit per sale, by platform

PlatformPlatform feesYou keepMargin

Assumptions: Amazon referral uses Home & Kitchen (15%) and the 2026 FBA schedule incl. the 3.5% fuel surcharge; Etsy is US, no Offsite Ads; eBay is “most categories” (13.6%); TikTok Shop referral 6%. Open a platform below for its line-by-line breakdown, or use the dedicated calculators to change category, size tier, country and more.

Why the headline fee is never the real fee

Every marketplace advertises one friendly number — Etsy says 6.5%, TikTok says 6%, eBay says ~13%. None of them is what leaves your account. Etsy adds a $0.20 listing fee and payment processing on the total including shipping, which takes a typical US order to about 11%. Amazon stacks referral, fulfillment, storage, plan fees and, since April 2026, a 3.5% fuel surcharge on fulfillment. eBay charges its final value fee on the total including the sales tax the buyer paid. Shopify looks free of marketplace fees until you divide a $39–$399 monthly plan by a small order count.

That's why this tool works backwards from your settlement, not forwards from a fee table: platform fees first, then the costs sellers forget — inbound freight, packaging, ad spend as a share of price, and the expected loss from returns (we model a return as losing the product cost plus the outbound delivery, with percentage fees refunded).

Go deeper

Amazon FBA CalculatorEvery category, size tier, storage and plan fee — plus break-even price and break-even ACoS.
Etsy Fee CalculatorAll-in take rate by country, Offsite Ads on/off and amortized, currency conversion.
eBay Fee CalculatorFinal value fees by category, the sales-tax trap, promoted listings and insertion fees.
TikTok Shop Calculator6% referral plus the creator commission everyone forgets, FBT or self-shipping.
Shopify Fee CalculatorWhich plan — Basic, Grow or Advanced — is actually cheapest at your volume.
Reverse Pricing CalculatorName the profit you want; get the price you need to charge on every platform.

Fee schedules, head-to-heads & worked examples

Prefer reading tables to moving sliders? Every platform's full 2026 schedule is published in our fee schedule library. Head-to-heads: Amazon vs Etsy · Amazon vs eBay · Amazon vs Shopify · Etsy vs eBay · Amazon vs TikTok Shop. And worked examples answer “how much does X take from a $Y sale?” to the cent — start with the same $30 sale on all six platforms.

Fee schedules: version 2026.1, checked against each platform's published rates on 2026-10-22. Estimates only — your settlement statement is the final word. Nothing you type leaves your browser.