Whatnot Fee Calculator
Type the price, shipping, tax and your costs. You get the Whatnot commission and payment processing fee, your payout and your profit; the commission rate is yours to edit.
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How to use the Whatnot Fee Calculator
- Enter the price the buyer pays for the item in “Item price ($)”.
- Enter the postage the buyer pays in “Shipping the buyer pays ($)”. Enter 0 if you do not charge shipping.
- Enter the postage you pay in “Your shipping cost ($)”.
- Enter what you paid for the item in “Item cost ($)”.
- Open More options if you need to adjust the defaults. You can set “Sales tax collected ($)”, “Other costs per order ($)”, “Number of orders”, “Commission (%)”, “Processing fee (%)”, and “Processing fee, fixed ($)”.
- Read the results. “Profit per order” and “Platform pays out” are the two main figures. The rows below them show the commission, the payment processing fee, total fees, margin, ROI, effective fee rate, break-even price, and “Profit for all orders”.
- To try a common case, click one of the presets: ‘$40 item’, ‘$15 card’, ‘$300 lot with tax’, ‘Coins & money, 4%’, or ‘$5 item’.
The defaults are an item price of $40, buyer-paid shipping of $5, your shipping cost of $5, an item cost of $15, no tax, and 1 order. The tool shows an error if the price is not above zero, if an amount or rate is negative, if a rate is above 100%, or if the number of orders is outside 1 to 100.
How does the Whatnot Fee Calculator work out fees and profit?
The tool applies two fees to each sale. Both rates come from a search-result extract of Whatnot’s help page, not from reading the full page. The commission is a percentage of the item price, and the payment processing fee is 2.9% plus $0.30 on the item price, the shipping, and the sales tax. With the defaults, the commission is $3.20 (8% of $40). The processing fee is 45.00 × 2.9% + 0.30 = $1.61, so total fees are $4.81.
The payout is what the buyer pays you for the item and shipping, minus those fees. Sales tax raises the processing base, but it is not counted as revenue or payout. Profit is the payout minus your item cost and your shipping cost. In the defaults, the payout is $40.19 and the profit is $20.19. The margin of 44.87% is that profit divided by the $45 the buyer pays for the item and shipping.
Take the example of a $300 lot with $8 shipping and $24 tax. The commission is $24.00, the processing fee is $9.93, and total fees are $33.93. The payout is $274.07, and with a cost of $180 and postage of $8, the profit is $86.07. The $24 tax does not appear in the payout.
Why can the Whatnot commission rate differ from 8%?
The default commission is 8%, which the extract gives as the base rate for trading cards and sports. The extract also describes tiered commission that depends on category and sales volume. The calculator offers one editable rate, so it cannot be exact for every seller. Set “Commission (%)” to the rate that applies to your account and category. The preset ‘Coins & money, 4%’ sets the commission to 4% from the extract, which on a $200 item gives a different result from the default.
The tool also assumes that the commission is charged on the item price only. The extract does not say this, so treat it as our assumption and check it on Whatnot’s own page. The rates were read on 2026-10-16 and may have changed.
Two warnings appear in the results. A loss shows when the profit is below zero, and a warning appears when total fees are above 40% of the sale. The break-even price is the item price at which profit is zero for your inputs, which helps you see how far a sale is from a loss.
Sources (checked 16 October 2026): help.whatnot.com · help.whatnot.com
Worked examples
| Input | Result |
|---|---|
| Whatnot: item price $40.00, item cost $15.00 | Fees $4.81, payout $40.19, profit $20.19 (44.87% margin) |
| Whatnot: item price $15.00, item cost $5.00 | Fees $2.05, payout $16.95, profit $7.95 (41.84% margin) |
| Whatnot: item price $300.00, item cost $180.00 | Fees $33.93, payout $274.07, profit $86.07 (27.94% margin) |
| Whatnot: item price $200.00, item cost $120.00 | Fees $14.25, payout $190.75, profit $65.75 (32.07% margin) |
Calculated by the tool above; open it with the same values to see each step.
Frequently asked questions
Is the Whatnot commission always 8%?
No. The default is 8%, taken from the extract for trading cards and sports. Commission varies by category and seller tier, so enter the rate that applies to you in “Commission (%)”.
Does sales tax count as money I keep?
No. “Sales tax collected ($)” raises the base for the processing fee, but it is not counted as revenue or payout. The results do not add it to what you keep.
Where do the rates in this calculator come from?
The rates come from a search-result extract of the platform’s help page, which was not read in full. The rates were read on 2026-10-16 and may have changed. Check the platform’s own page before you rely on them.
What is the break-even price?
It is the item price at which your profit is zero, given your costs and fees. If your planned price is below it, a sale would lose money with those inputs.
Is anything I type uploaded?
No. The tool runs in your browser, and nothing you enter is uploaded. There is no sign-up.
What do the presets change?
Each preset fills in the controls with a sample sale, such as ‘$40 item’ or ‘$300 lot with tax’. ‘Coins & money, 4%’ also sets the commission to 4%. You can change any value after you apply a preset.
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