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Know what you keep, before you sell.
Every marketplace quotes its fee as a percentage and stops there. These calculators go the rest of the way — the per-order fees, the sales tax counted in the base, the shipping you actually paid — and show you the one number that matters.
What a $100 sale leaves you
The same sale, run through each platform’s own published fee schedule. Every figure comes out of the calculator on that platform’s page, under the assumption named beside it — change any of them and the number changes with it.
United States
| Platform | What it takes | You keep |
|---|---|---|
| eBay Fee CalculatorMost categories, insertion fee applied | $14.35 | $85.65 |
| PayPal Fee CalculatorPayPal Checkout | $3.98 | $96.02 |
| Stripe Fee CalculatorDomestic card, online | $3.20 | $96.80 |
| Etsy Fee CalculatorItem price only, no offsite ad | $9.95 | $90.05 |
| Square Fee CalculatorTap, dip, or swipe — Square Free | $2.75 | $97.25 |
| Cash App Fee CalculatorCash App account, before any instant transfer | $2.75 | $97.25 |
| Amazon Seller Fee CalculatorHome and Kitchen, Professional plan | $15.00 | $85.00 |
| Reverb Fee CalculatorStandard seller | $8.68 | $91.32 |
United Kingdom
| Platform | What it takes | You keep |
|---|---|---|
| eBay Fee Calculator UKBusiness seller, Clothes, Shoes & Accessories | £12.65 | £87.35 |
| PayPal Fee Calculator UKAll Other Commercial Transactions, domestic | £3.20 | £96.80 |
| Etsy Fee Calculator UKItem price only | £11.18 | £88.82 |
| Amazon Fee Calculator UKHome Products, Professional plan | £15.00 | £85.00 |
The calculators
- eBay Fee CalculatorWhat you keep after eBay's selling fees
- eBay Fee Calculator UKWhat you keep on eBay.co.uk — and why a UK private seller pays nothing
- PayPal Fee CalculatorWhat you actually receive after PayPal takes its cut
- PayPal Fee Calculator UKWhat you keep on PayPal UK — 2.9% + 30p, not the US rate in pounds
- Stripe Fee CalculatorWhat lands in your account after Stripe's processing fees
- Etsy Fee CalculatorWhat you keep after Etsy's listing, transaction and payment fees
- Etsy Fee Calculator UKWhat you keep on Etsy UK — including the 0.48% fee US sellers never pay
- Square Fee CalculatorWhat you keep after Square's processing fees
- Cash App Fee CalculatorWhat you keep after Cash App's business processing fee
- Amazon Seller Fee CalculatorWhat you keep after Amazon's referral fee
- Amazon Fee Calculator UKWhat you keep after Amazon's UK referral fee — 52 categories, £0.25 minimum
- Reverb Fee CalculatorWhat you keep after Reverb's selling fees
How the numbers get here
Every figure on this site comes from its publisher's official document, never from an aggregator. The facts themselves are not owned by anyone; the way an aggregator compiles them is.
Each page names the documents it draws from — their name, publisher, edition, and a link — directly under the result, so every number can be checked at its source.
This site informs and calculates. It sells nothing, asks for no account, collects no personal data, and always links to the official document rather than standing in for it.
Full method — 19 documents named in full.