FeeSift

Private seller tools

Whatnot fees, before and after every sale.

Free Whatnot fee calculator and private payout analyzer — know what you keep.

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Published example

A $50.00 Whatnot sale

Whatnot US · USD
Item price
$50.00
Buyer-paid shipping
$5.00
Buyer-paid tax
$3.70
Buyer-paid total (processing base)
$58.70
Commission (8% of the item price)
$4.00
Processing (2.9% of the total + $0.30)
$2.00
Estimated payout
$44.00

$50.00 − $4.00 − $2.00 = $44.00

The shipping and tax the buyer paid are passed on rather than kept, so they never appear in the payout — they only raise the amount processing is charged on. That is why two fees on the same sale are calculated from two different bases.

Clear before clever

Built around the seller decisions that matter

Price before you list

Solve the lowest auction start that still covers your fees, costs, and chosen profit target.

Find a safe start

Explain every deduction

See the commission base, processing base, fixed fee, rounding, and assumptions behind the result.

Read the methodology

Analyze privately

Validate and preview your Weekly Orders Report locally without uploading its contents.

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Find loss-making sales

The upcoming report analyzer will surface refunds, giveaways, missing costs, and negative-profit orders.

Private by architecture

Your sales report stays with you

Your report is processed locally in this browser. FeeSift does not upload or store the CSV. Reset the analyzer or close the tab to discard the current analysis.

Supported foundation

Marketplace
Whatnot US
Currency
USD
Supported report
Whatnot Weekly Orders Report
Fees verified
August 16, 2026

Helpful guides

Estimates stay transparent

This is an estimate based on the inputs and published fee rules shown below. Actual fees can differ because of taxes, shipping, promotions, category treatment, cross-border orders, or rule changes.

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