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Marketplace Fee Calculator

Enter the sale price, percentage fee, and fixed fee to find your net payout.

How it is calculated

The tool adds the marketplace's percentage cut to its flat fee per sale and subtracts both from the sale price: total fee = sale price × fee % ÷ 100 + fixed fee, net payout = sale price − total fee, and effective rate = total fee ÷ sale price × 100. Enter the percentage as a number such as 12 and the fixed fee as an amount per sale. Sale price must be above zero; percentage and fixed fee cannot be negative. The effective rate can be far above the stated percentage on cheap items, and if the fixed fee exceeds the price the payout turns negative (the tool still shows it). Only one percentage and one fixed fee are modelled, so add several fees together before entering them, and costs such as shipping, taxes and the item's own cost are not included.

Worked example

An item sells for 40 on a marketplace that takes 12% plus 0.45 per sale. Percentage fee = 40 × 0.12 = 4.80. Total fee = 4.80 + 0.45 = $5.25. Net payout = 40 − 5.25 = $34.75. Effective rate = 5.25 ÷ 40 = 13.13%, above the stated 12% because of the flat fee. On an 8 sale the same terms take 17.63%.

Try this example →

Common mistakes

  • Entering the fee percentage as a decimal, such as 0.12. The field expects 12, otherwise the fee is almost nothing.
  • Leaving out a second fee, such as a payment-processing or listing fee. If your marketplace charges several percentages, add them together and enter one combined rate.
  • Judging a marketplace by its headline percentage alone. The fixed fee can raise the effective rate a lot on small sales; compare the net payout at your usual price.
  • Reading net payout as profit. It is only what is left after platform fees, with item cost, shipping and tax still to be deducted.

About this calculator

Online marketplaces like Etsy, eBay and many others typically charge sellers a combination of a percentage fee (a cut of the sale price) and a flat fixed fee per transaction or listing, and your net payout is the sale price minus both. Because the fixed fee doesn’t scale with price, it eats a much larger share of a cheap item’s revenue than an expensive one, which is why the effective fee rate (total fees ÷ sale price) varies by price point even on a marketplace with a single stated percentage.

Sellers use this math to price items so they still turn a profit after fees, and to compare which marketplace or listing tier actually nets more money for a given item — the platform with the lower headline percentage isn’t always the better deal once fixed fees are included. From the sale price, the marketplace's percentage fee and its fixed fee, it works out what you are paid, the total fee taken and the effective fee rate on the sale.

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Comments (1)

  • Editorial team

    The flat part of the fee bites hardest on cheap items: at the default 12 percent plus 0.30, a sale of 100 costs 12.30 (12.3 percent) but a sale of 5 costs 0.90, an effective 18 percent. When you set prices, run your lowest-priced product through the tool, not your average one. The payout shown is before shipping, product cost and ads. Which charges on your marketplace do not fit one percentage plus one flat amount?

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