Free Whatnot tools
Calculators for Whatnot sellers. No sign-in, nothing to install. Every rate they use was verified against Whatnot's published schedule on 12 August 2026, and the full walkthrough lives in our guide, Whatnot fees explained. If you want the full product on a sample week instead, open the demo.
Whatnot fee calculator
See what commission and payment processing take out of one sale, and what is left for you.
Whatnot break-even calculator
Find the lowest price that still covers your cost, your shipping, the fees and a target profit.
Whatnot profit calculator
Estimate a whole show or a card break: items, average price and what the inventory cost you, with every fee counted.
Guides
Whatnot fees explained, with a worked example
The two fees, the two different numbers they are charged on, the promos worth knowing, and one sale followed all the way to the payout.
Whatnot taxes for sellers, the basics
What gets taxed when you sell on Whatnot, why net profit is the number that matters, and the records that make tax time painless.
How to download and read the Whatnot Weekly Order Report
Where the report lives in Seller Hub, what each column group means, and the three things that trip sellers up the first time they open it.