Price after fees, not before them
An 8% headline commission is not your all-in cost. In the US you also pay 2.9% + $0.30 on everything the buyer pays, including shipping and tax. On a Standard-tier $50 sale with $4.99 shipping and 7% tax, total fees are $6.00, or 12% of the item price. See the full breakdown in How much does Whatnot take?
Before you go live, run a typical item through the fee calculator and note the break-even sale price. That is the hammer or BIN price where you neither make nor lose money after fees, shipping you cover, and cost of goods. Auctions can still go lower, but you should know when they did.
Costing a break, case, or mystery box
The inventory in a break is bought as one lot and sold as many spots. If you assign no cost, every spot looks like free profit. If you dump the whole case cost onto the last hit, one order looks terrible and the rest look too good.
A cleaner method: enter one lot cost for the show and spread it across sales in proportion to price. A $200 spot on a $2,000 show carries 10% of the case; a $40 spot carries 2%. The show’s profit is then honest even if individual spots vary. ProfitPerShow does this when you type a lot cost or add a show-level row in a cost file.
If you sell high-end singles in the same week, remember that Whatnot’s 0% commission on the portion of an order above $1,500 applies to Sports Singles in listed subcategories, but sports breaks and surprise products are excluded from that promotion. Source: Reduced Commission on High-Value Orders, checked November 13, 2026.
What a giveaway really costs
Sellers pay shipping on physical Whatnot giveaways, including international shipping if it is enabled, and the charge comes out of your balance when the giveaway runs. Source: About giveaways on Whatnot.
Add the prize cost. Five $8 prizes at the $4.85 Ground Advantage rate (4 oz to under 8 oz, effective July 31, 2026) cost $64.25. If a typical $50 sale makes $24 after fees and cost, you need three of those sales just to break even on the giveaways. Use the giveaway and break-even calculator before you plan the night, and the show profit estimator to see the whole stream.
Giveaways can still be worth it when they clearly create extra paying buyers. The point is to measure them, not to treat “free” as free.
A pre-show checklist
- Know your commission category and current tier.
- Have a break-even price for the average item, including any shipping you plan to cover.
- Write down the lot cost of any case, box, or group you will break.
- Count planned giveaways at prize cost plus packed-weight shipping, not at $0.
- After the show, export the Show Report the same night, then replace estimates with the Weekly Orders Report when it publishes.