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Record Keeping for Resellers: What to Track
Practical guide from the Resale IQ team.
Track cost, fees and profit per item without a spreadsheet mess. Built for Vinted resellers.
Most resellers can tell you their revenue and almost none can tell you their profit. Tracking a handful of numbers per item turns reselling from a feeling into a business. (General information — for your tax obligations, speak to a qualified accountant in your country.)
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Based on current asking prices for this model on Vinted (the low end of current asks: most sellers ask more)
Asking prices are widely spread — treat the typical price as a range, not a point
A worked example from this week's data
Resale IQ shows which items have demand. All figures from live Vinted listings. Methodology
The minimum per item
Purchase price, purchase date, sale price, sale date, fees and shipping. Six fields. That's enough to compute everything that matters — the profit calculator turns them into a net figure per item.
A simple spreadsheet is fine. The discipline matters far more than the tool.
The numbers it unlocks
Real profit per item after fees, average days to sell, and the share of purchases that never sold — the metric almost nobody tracks and everybody needs. Compare your own numbers against what actually left the shelf this week.
You'll quickly see which categories genuinely earn and which just feel productive — then compare your own numbers against what each category does market-wide.
Why it changes behaviour
Once you can see that a category averages 90 days to sell, you stop buying it. Records don't just report the past — they correct your sourcing, especially read against how fast each brand actually moves.
Resale IQ's portfolio tracking does this alongside the market data, so your own results sit next to the market's.
Tax
Rules differ by country and by whether reselling counts as regular activity for you. Keep records from day one so you're never reconstructing history, and get advice from a qualified professional before it matters.
A buyer disputing an item? Free dispute evidence kit →
Frequently asked questions
What records should a reseller keep?
Per item: purchase price, purchase date, sale price, sale date, fees and shipping. Those six fields let you compute real profit, average days to sell, and the share of stock that never sold.
Do I need to declare reselling income?
It depends on your country and whether your activity counts as regular trading. Keep complete records from the start and consult a qualified accountant in your jurisdiction.
Unlock the buy-below price for New Balance 550.
Resale IQ turns 3M+ listing records into one answer: BUY, WATCH, or SKIP — with buy-below price and best sizes.