Purchases that match how auctions bill you
Log the invoice, its lots, hammer price, VAT, buyer's premium and delivery. Quidder splits the whole cost across your items — by percentage or pounds — so every item carries its true landed cost.
Built for auction-lot resellers
From car boot to bank balance.
A £42.59 auction lot isn't nine free bike parts and a mystery. Quidder splits hammer price, VAT, buyer's premium and delivery into a true cost for every item — so each sale shows its honest profit, all the way to your tax return.
How it works
The same three moves you already make — minus the spreadsheet gymnastics.
- 1
Log the purchase
Invoice, lots, delivery — entered once, the way the auction house wrote it.
- 2
Add your items
Split each lot's cost across the items inside it. Photos and locations optional but handy.
- 3
Sell and see the truth
Each sale shows its real profit after fees. Dashboards, reports and the tax year take care of themselves.
Everything the reselling actually involves
Not a generic stock app with auction words sprinkled on — the maths matches the invoices.
Inventory that knows its history
Every item gets its own reference, photos, category and location. Repack a bulk lot into sellable packs and the costs follow the maths, not your memory.
Profit per sale, not per guess
Record a sale with its postage, fees and adjustments; profit is computed from the item's real cost. Filter the log by platform and get totals you can reconcile against a statement.
A stock budget with an opinion
Set aside a percentage of last period's profit for new stock, and watch spending against it. The dashboard shows spend, revenue and profit for any week, month, year or custom range.
Expenses and home office, handled
General costs, recurring home bills with apportionment, and mileage all feed the same net-profit figure — the one your tax return actually needs.
Know where you stand with HMRC
A plain green/amber/red read on the three limits that actually matter: the £1,000 trading allowance, the point where eBay and Vinted report you (30 sales or ~£1,700), and the £90,000 VAT threshold — each measured over its own correct window, from your own figures.
Your data stays yours
Import your existing spreadsheet to start with history, not a blank screen. Export sales, inventory and expenses back out as CSV whenever you like.
Built by a reseller, in the open.
Quidder runs a real UK reselling business every day — and it's early. It's free while in early access, and what gets built next is shaped by the people using it.
Phone-friendly quick addSpreadsheet import & CSV export Your own private account