The moment your Whatnot payout doesn't match your maths
You sell a £15 item live, feel good about it, and then your payout lands a few pounds lower than you expected. It happens to almost everyone in their first few months on Whatnot — not because anything's gone wrong, but because most sellers only budget for one fee when there are actually two, plus postage they forgot to plan for. Get your pricing right before you go live, and this stops being a surprise.
What Whatnot actually takes from every sale
Whatnot charges two separate fees on every sale, and it's easy to only remember the first one:
- Seller commission — 6.67% on most standard categories. Some categories work differently: comics carry the same 6.67% but it's capped at £100.05 on sales over £1,500, and coins sit lower at 4%. Check your specific category before you assume a number.
- Payment processing — 2.9% of the sale price, plus a flat £0.30 on top. This is separate from Whatnot's own commission and gets taken on every single transaction.
Stack them together and you're typically looking at just under 10% of your sale price in combined fees, plus that flat 30p — before postage, before packaging, and before what you paid for the stock in the first place.
One honest caveat: platform fees change. These are Whatnot's published UK rates at the time of writing — always double-check the current numbers at whatnot.com before you rely on them, especially if you're pricing a big batch of stock in advance.
If you'd rather not do this maths in your head mid-show, our free Whatnot Profit Calculator has these fees already built in — put in your cost price and sale price and it does the rest.
Three real price points, worked out properly
Percentages are easy to skim past. Here's what they actually mean in cash, at three price points a lot of UK sellers list at.
A £5 item
Commission (6.67%): 33p. Processing (2.9% + 30p): 45p. Total fees: 78p — that's 15.6% of your sale price gone before you've thought about postage or stock cost.
Say you paid £1.50 for it as part of a joblot. Post it on its own in a small tracked parcel at around £3 and you're looking at a loss of roughly 28p once everything's accounted for. Batch it into a bigger parcel with four other wins from the same show — knocking your allocated postage down to around 60p — and that same item nets you closer to £2.12, a 42.4% margin. Same item, same sale price, completely different outcome depending on how it ships.
A £15 item
Commission: £1.00. Processing: 74p. Total fees: £1.74 — 11.6% of the sale price. On a £4 cost price and a batched postage allocation of around £1.20, that's roughly £8.06 in your pocket — a 53.7% margin.
A £40 item
Commission: £2.67. Processing: £1.46. Total fees: £4.13 — 10.3% of the sale price. With a £12 cost price and £4.50 for a properly tracked and insured parcel (worth it at this value), you're left with roughly £19.37 — a 48.4% margin.
Notice the pattern: the fee burden as a percentage gets smaller the higher your price point, because that flat 30p processing fee matters less the more the item's worth. It's the same reason a string of £1 starts can quietly erode your margin faster than sellers expect — we've written about that trade-off separately if you want to go deeper.
The mistakes that quietly wreck your margin
- Only budgeting for the commission. If you've done your sums on eBay before, it's easy to assume Whatnot's fee is "just" 6.67% and forget the processing cut sits on top of it every single time.
- Guessing your postage instead of weighing it. A parcel you estimate at £2.50 that actually costs £3.60 wipes out most of your margin on a cheaper item. Weigh a sample parcel before your first show in a category.
- Pricing off RRP instead of what things actually sell for on Whatnot. Retail price and Whatnot sold price are often two very different numbers — watch a few shows in your category before you set starts.
- Setting £1 starts on stock that can't absorb the fee stack. A £1 start works brilliantly to hook viewers into a bidding war. It doesn't work if the item realistically only sells for £3–4 once bidding settles — you can end up covering fees and postage out of your own margin.
- Not checking your payout breakdown. When a payout looks lower than expected, it's rarely a platform error — it's almost always the two fees stacking in a way you didn't plan for. Get into the habit of checking the breakdown, not just the total.
Price with your eyes open
None of this means Whatnot is a bad place to sell — for the right stock, live selling still beats a lot of other platforms on engagement and repeat buyers. It just means the maths needs to happen before you hit "Go Live," not after your payout lands. Know your fees, know your postage, and price with a real margin built in rather than hoping it works out.
Run your own numbers before your next show with the free Whatnot Profit Calculator — no login, no catch, just the real maths.