Accounts, not impressions
Plenty of resellers know their revenue and not their profit. The gap sits in lines nobody writes down: free shipping, packaging, unsold stock, and the time their money spends asleep on a shelf.
The three numbers
| Number | What it answers | Why nobody has it |
|---|---|---|
| Net profit per month | Am I making money? | Everything has to be entered |
| Average turnover time | Is my capital moving? | It needs two dates per item |
| Margin by sourcing spot | Where do I buy well? | It needs two tables joined |
The third line changes the most decisions. It answers a question nobody asks because nobody can: does the Sunday flea market pay better than the consignment shop? The answer is rarely the one you expect, because memory keeps the great finds and forgets the empty trips.
Why turnover matters as much as margin
An item bought for €10 and sold for €25 in ten days, and an item bought for €10 and sold for €25 in five months, show the same margin. They are not worth the same: the first let you buy again several times over, the second tied up capital, took up space, and ran the risk of going out of fashion.
This is the calculation spreadsheets almost never make, because it requires holding the buy date AND the sell date on every line, without missing one. Here both dates exist by construction: they are set when the item comes in and when it goes out.
The practical consequence is a reversal of priorities. Plenty of resellers concentrate their buying on the categories with the prettiest headline margin and end up with stock that sleeps. Measuring turnover corrects that bias, and it is usually the first change of behaviour that serious tracking produces.
Unsold stock, the number nobody has
An item that never sells appears in no sale: it is absent from every margin calculation, even though it cost money. It is the most common hole in a reselling business’s accounts, and it is structural — you cannot forget a sale, you systematically forget a non-sale.
Because the whole stock is tracked, unsold items included, the rate is observed instead of assumed. It changes how you read everything else: a high-margin category where a third never moves can be less profitable than a modest-margin one that clears entirely.
What the numbers say after three months
- Which categories move fast, and which sleep.
- Which sourcing spot is worth the trip.
- Which stock to clear rather than keep.
- What your real unsold rate is, category by category.
- What is actually left once everything is deducted.
Three months is the minimum before these numbers mean anything: below that, seasonality and luck dominate. It is also why it is better to start tracking before you need to.
The last line is the one you will want when you declare your income, whatever the rules are where you live. We do not give tax advice and we will not guess at your obligations: what the tool gives you is a complete, exportable record of what came in, what went out and when — which is what an accountant or a tax form asks for, in any country. Exporting that data is open on every tier; the ready-made accounting export and annual tax summary are part of the Ultime tier.
Full export in JSON and CSV at any time. Your figures stay yours, including the day you leave.
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