How it works
True profit isn't what Whatnot pays you.
Whatnot's payout only deducts their platform cut. Real profit needs all three pillars in one place: your Whatnot sales, what you paid for stock, and your day-to-day expenses. Add all three and WhatMargins shows your exact take-home to the penny.
Organised as you go, zero maths dread
- 1
Log stock as you source
Add cash buys and car boot hauls, or split mixed bundles into unit costs.
- 2
Link sales & costs in seconds
Tap Find in stock to link a sale, or type its cost beside each item.
- 3
Add expenses & see real net profit
Record mailers, labels and supplies. Sales minus stock and costs = real cash.
Your seller toolkit
Behind every good show.
Vintage. Streetwear. Cards. Collectables.
Show-day ledger & real net cash
Whatnot fees, VAT on fees and postage deducted to the penny, then your stock costs, so you see what the show really made.
Example: payout £312.40 → real profit £184.10
Stock & haul triage
Import Whatnot purchase CSVs, mark personal buys in one tap and split bundles into per-item costs.
Split a 20-item lot · skip personal buys
UK tax & HMRC pack
Expenses sorted by HMRC box, the £1,000 trading allowance checked, and a pack ready for your accountant.
HMRC boxes · £1k allowance check
Buy or Pass
Check a lot's break-even, fees and VAT included, in seconds while you watch another seller's show.
BUY · MAYBE · PASS — no mental maths
Less guesswork. More good buys.
Go Premium.
Keep your edge.
- Unlimited Whatnot sales & purchase CSV uploads
- Unlimited orders tracked every month
- HMRC tax pack ready for your accountant
- Save Buy or Pass deals straight to stock
- Less admin, and your data stays if you downgrade
7-day free trial · No card required
Billed yearly. Save £9.89 compared with standard monthly billing. No extra discount.
No card needed for the trial. Upgrade any time from Settings.