Where to Source Inventory

01

Every source trades off the same three things

It is tempting to rank sourcing channels from best to worst. They do not rank. They sit at different points on the same three-way trade-off, and which point suits you depends entirely on which of the three you have most of.

• Price — what you pay relative to what the item will sell for.
• Volume — how much stock the channel can supply, repeatedly.
• Your time — hours spent searching, travelling, negotiating, sorting, and disposing of what will not sell.

Charity shops give excellent price and terrible volume-per-hour. Liquidation gives volume and price but consumes enormous handling time and carries real risk. Trade suppliers give volume and low time cost at a much worse price. Consignment gives volume at no capital cost and a permanently reduced margin.

02

Searching: charity shops, car boots, flea markets

This is where almost everyone starts, and there is nothing wrong with that. The capital requirement is tiny, the education is real, and the margins on a good find are the best you will ever see.

What to understand about it structurally:

• You are paid for recognition, not for effort. The value comes from knowing what something is when the person who priced it did not. That skill is real, transferable, and worth building — it is the same skill that makes the valuation discipline fast rather than laborious.
• The time cost per unit is roughly constant. This is the ceiling. Ten years of experience makes you faster at recognising, not faster at walking around.
• Supply is genuinely random. You cannot plan around it, which makes it a poor foundation for anything with a deadline — a seasonal buy, a specific customer request, a promised delivery.
• It gets harder as more people do it. Staff at these outlets increasingly check prices themselves, and the easy arbitrage in identifiable branded goods has narrowed considerably.

Used well, this is a training channel and a supplement, not an engine. The sellers who stay here permanently tend to be the ones with a very high recognition edge in a narrow category — which is a real business, just a capped one.

03

Bulk: clearances, estate sales, auctions, and storage lots

The step change comes when you stop buying items and start buying piles. The economics are different in kind, not degree, because you are no longer competing on who spotted an item first — you are being paid for taking on volume, logistics, and uncertainty.

• House clearances. Someone needs a property emptied to a deadline. The price reflects that need rather than the contents, which is precisely why the margin exists. Usually found through word of mouth, local advertising, and relationships with the people who handle estates.
• Estate sales. More organised, often professionally run, frequently with an end-of-sale bulk discount that is where the real opportunity sits. Going on the last day and offering for the remainder is a standard move.
• General auctions. Regular supply, published lots, and a competitive room. The discipline in the job lots guide matters most here, because auction rooms are engineered to produce exactly the biases that make people overpay.
• Storage unit sales. High variance and mostly hype. The lots that get filmed are not the lots that are typical. Treat as a lottery ticket you can afford, not as a supply line.
• Trade and dealer lots. Other sellers clearing categories they have moved away from. Often the most rational source available: they know what it is worth, they want it gone, and both parties can be honest about why.

Every one of these produces a tail — the portion that will not sell at any price worth your handling. That tail is a cost of the purchase, not a disappointment after it, and it belongs in the bid arithmetic before you raise your hand.

04

Commercial: liquidation, wholesale, and returns pallets

Buying from businesses rather than individuals changes the shape of the problem again: supply becomes predictable and the margin becomes thin and contested.

• Customer returns pallets. Mixed condition, sold by the pallet, usually with a manifest. The manifest describes what was packed, not what arrives working and complete. Value them as job lots with a high assumed failure rate, and expect to spend real time testing, cleaning, and pairing.
• Shelf-pull and overstock. Generally better condition than returns and correspondingly more expensive. Much easier to list because items are current, identifiable, and often new.
• Wholesale and closeout. Predictable, invoiced, repeatable. You are now competing with everyone else who can buy the same stock, so the margin lives in your listing quality and channel choice rather than in the buy.
• Trade shows and clearance brokers. Where relationships get made. The stock available to someone who has met the supplier is not the stock listed publicly.

A specific warning about stated retail value: it is a number chosen by the seller of the pallet and it correlates weakly with what anything will actually fetch. "Ninety percent off retail" is a marketing claim, not a margin. Price the pallet on what you can realistically sell, unit by unit, using the same sold-data discipline you would use for a single item.

The other thing that changes here is legal posture. Buying from businesses usually means invoices, which is good for your records and often necessary for the tax treatment described in the consumption tax guide. It also means you may be asked for business credentials before an account is opened.

05

The channels that actually scale: stock coming to you

Every channel above requires you to go and get it. The ones that break the time ceiling are the ones where the stock arrives, because the acquisition cost is paid once when the relationship is built and amortised across everything that comes afterwards.

• Consignment. You sell someone else's item and take a percentage. No capital, no buying risk, unlimited supply if you are good at it — in exchange for a permanently lower margin and an obligation to someone else's expectations. It suits sellers with a strong reputation in a specific category.
• Repeat sellers. Dealers, collectors, and clearance people who call you first because you pay promptly, turn up when you say you will, and take the whole lot rather than cherry-picking. This is worth more than any pricing edge.
• Referrals from adjacent trades. House clearance firms, probate solicitors, moving companies, and self-storage managers all encounter people who need things gone. None of them wants to sell those things. Being the person they think of is a durable supply line.
• Buying back from your own buyers. In collectable categories, the people who bought from you are the people who will eventually sell. A short line in your packing insert costs nothing.
• Standing offers. A simple public statement that you buy a specific category, kept visible, produces a slow trickle that compounds. It works best when it is narrow enough to be memorable.

The thing all of these have in common is that they are built rather than found, and they take months to establish. That is exactly why they are defensible: a competitor can copy your listing style this afternoon and cannot copy four years of the local clearance firm having your number.

06

Measuring which channels deserve your time

Almost nobody does this, and it is the single highest-return piece of record keeping available to a reseller — because sourcing time is the scarcest input in the business and it is currently being allocated on habit.

1. Tag every acquisition Tag every acquisition with its source. One extra field on the record described in the COGS guide.
2. Log sourcing hours Log sourcing hours roughly by channel — travel included, because travel is the cost.
3. Total by source each quarter After a quarter, total net proceeds less cost by source, and divide by hours.
4. Compare against listing Compare against the alternative: what an hour spent listing existing stock earns you.
5. Reallocate, then re-measure Reallocate. Then re-measure next quarter, because channels decay and improve.

Two results show up repeatedly. The first is that a favourite channel is being subsidised by a boring one. The second is that for sellers with unlisted backlog, sourcing is not the constrained activity at all — listing is — and the correct answer for that quarter is to buy nothing and clear the shelf.

Sourcing also has a seasonal shape worth planning around, which the seasonality guide covers: the cheapest time to buy a category is generally the point in the year at which nobody wants it.