About Basakit

Basakit is a small set of free calculators for marketplace sellers. It exists because working out what a platform actually takes from a sale is harder than it should be.

Why these exist

Every marketplace takes a cut, but almost none of them show you the number you actually need: what lands in your bank account after fees, and whether the sale was worth making. eBay in particular charges several things at once — a percentage fee on the total the buyer pays including postage, a flat per-order charge, a regulatory fee in some countries, tax on the fees themselves in others, and extra percentages when the buyer is abroad.

On top of that, the rates are not the same between countries and they change. eBay UK changed its per-order fee and several category rates in February 2026. A calculator frozen at last year's numbers quietly gives you the wrong answer, which is worse than having no calculator at all.

Where the numbers come from

• Each calculator is built from the fee schedule published by eBay for that country — eBay.com, eBay.ca and eBay.co.uk.
• Every page shows the date the rates were last reviewed, at the top of the page.
• Categories, store subscriptions, seller type and buyer location are all adjustable, because the rate depends on all four.

These are estimates, not invoices. Category rates vary, promotional offers and top-rated discounts apply to some sellers, and eBay adjusts its schedule periodically. Confirm the exact rate for your own category in Seller Hub before you price stock.

What makes these different

• Everything runs in your browser. The prices and costs you type in are never uploaded, never stored, and never seen by anyone. You can paste real numbers in.
• Bulk mode. Paste a whole list of items and calculate them at once, then export to a spreadsheet — instead of typing one item at a time.
• Reverse pricing. Start from the profit you need and work out the price you must list at. Because fees are a percentage of the sale, not of your costs, this has to be solved by division — adding your target profit to your costs and knocking off a rough percentage gives a price that is too low.
• Country rules, not just currency. The Canadian calculator has no regulatory fee and a far lower international rate. The UK one handles private sellers paying nothing and VAT on top of fees. These are different rules, not a currency switch.

Who runs this

One person. There is no sign-up, no account and no newsletter — partly because the calculators do not need one, and partly because a tool that works without an account is more useful than one that does not.

Fee rates last reviewed October 2026.