Due diligence on a fine wine provider: what to check before you commit capital

Most investors spend more time choosing the wine than choosing the firm that buys and holds it for them. The assumption is that a famous label protects the buyer, and recent cases suggest the opposite. In August 2025 the directors of a London firm that sold fine wine as an investment were convicted of fraudulent trading at St Albans Crown Court; clients had been sold wines such as Château Mouton Rothschild at prices sometimes inflated by more than 400%, and some paid and received nothing, as The Drinks Business reported. In September 2026 a US court sentenced the second founder of a firm whose wine-backed loans were secured on collections that did not exist, a case we discuss in our guide to fine wine as collateral.

In both cases the names on the paperwork were real and famous. What failed was the provider, and every warning sign could have been found by asking a small number of plain questions before any money moved.

Know who you are dealing with

Start with the firm itself rather than its brochure. You should be able to identify the legal entity you are contracting with, where it is registered, how long it has traded and who makes the buying decisions. Company registers make this quick to check: in the UK through Companies House, and in Switzerland through the central business name index, Zefix. A firm that presents itself as long-established should have a record that agrees.

It also matters what protections do not apply. In the UK, the Advertising Standards Authority noted in a November 2024 ruling that wine investment was not regulated, nor covered by the Financial Services Compensation Scheme or the Financial Ombudsman Service. The safeguards many investors associate with financial products may therefore not be there, which makes the checks below your main protection rather than an extra layer.

Find out how the provider is paid

Every provider earns money somewhere, and the question is whether you can see where. Some disclose a fee separately from the cost of the wine; others build their margin into the price, so the figure you pay already contains their earnings and you have no way of seeing how large they are. A firm selling from its own stock also has an incentive to recommend what it needs to sell, which we explore in Merchant Stock vs Independent Sourcing.

Ask for the acquisition cost of each wine shown separately from any fee or commission, then compare that cost with independent evidence such as recent auction results or exchange prices. The comparison does not need to match to the euro, but a large and unexplained gap deserves an answer before you buy rather than after.

Confirm that the wine exists and is yours

Paying for wine is not the same as owning it. The strongest position is wine bought in your name and held in a storage account that lists you as the owner, which the warehouse will confirm to you directly rather than only through the provider. Your holding statement should list individual cases with identifying details, and your invoices should match those cases. We set out these tests in more detail in Why Direct Ownership Matters.

Two further questions are worth asking at the start: who insures the wine, and who has the authority to release or move it. If the answer to either is the provider alone, you are relying on the provider rather than on records you control.

Ask how the holding will be valued

A valuation is only useful if you know what it measures. A figure based on what a buyer would actually pay tells you something different from one based on list prices or the cost of replacing the wine, and the gap between them can be wide. Ask which basis the provider uses, how often valuations are produced and which sources sit behind them.

The same discipline applies on the way in. A wine bought at a premium to comparable vintages can lose much of that premium even when the wine itself is admired, as our analysis of an overpriced Burgundy shows.

Price the exit before you buy

The cost of selling is as much a part of the investment as the cost of buying, yet it is often the last thing discussed. Ask how the provider would sell your wine, through which routes, at what commission and over what likely timescale, and whether you are free to sell elsewhere. Our guide to planning a fine wine exit explains why the highest quoted price is not always the best outcome once commission, logistics and time are counted.

A provider that can state its resale terms in writing before you invest is giving you something useful: a known cost of exit, rather than one discovered when you need to sell.

Notice how you are being sold to

How a firm sells is often the clearest signal of how it will behave later. Unsolicited calls, deadlines that leave no time to check, profits presented as certain and pressure to commit before you have seen documents are warning signs rather than conveniences, a point MoneyWeek made in October 2025 when reporting on investors targeted by fine wine scams. A serious adviser expects to be checked and will wait while you do it.

What a good answer looks like

The questions below are the ones we would ask of any provider, including ourselves.

Question	A reassuring answer	A reason to pause
Who exactly am I contracting with?	A named legal entity whose register entry matches what you are told	A trading name only, or a history that does not match the register
How are you paid?	Acquisition cost and fees shown separately, in writing	A single price with the margin built in
Is the wine in my name?	A storage account in your name, confirmed by the warehouse directly	A share of pooled stock, or confirmation only from the provider
How is my holding valued?	A stated basis using market evidence, with sources	Values based on list or replacement prices, without sources
What will it cost to sell?	Resale routes and commission stated before you invest	Terms only discussed when you come to sell
How were you introduced to me?	Through your own enquiry or a trusted referral	A cold call, a deadline or returns presented as certain

The checks are simple, which is why they are skipped

None of these questions needs specialist knowledge, and a sound provider will answer each of them in writing without hesitation. They are skipped because the conversation tends to be about the wine, and the wine is rarely where the risk sits. If you already hold fine wine through a provider and would like an independent view of how it is held, priced and documented, a private portfolio review is a sensible place to start: Request a Private Portfolio Review.