How to become a watch dealer in Europe: registration, tax, stock and the first year

A collector in Rotterdam sold 14 watches in 2025, all bought with the intention of selling them on. In the eyes of the Belastingdienst that is not a hobby with a good year. It is a trade, and a trade that has not registered is a trade with a back-tax problem. The first step in how to become a watch dealer is cheap: €85.15 in the Netherlands, as little as €20 in Hamburg. What costs money is everything that comes after.

This guide covers the Netherlands, Germany, the United Kingdom and France, with Belgium where the rules are usefully different. Figures were checked on 21 August 2026. Rules change and a dealer's own accountant has the last word.

When a seller becomes a dealer

No European tax authority publishes a number of watches per year that turns a collector into a dealer. They all read the same signals. HMRC calls them the badges of trade: the subject matter, how often you transact, how long you hold, your motive at purchase, how you financed it and whether you advertised. Price Bailey's summary runs to nine. Three or four together are usually enough.

The Dutch and German tests are worded differently and land in the same place: participation in economic life, for profit, on a continuing basis. A collector who sells one watch to fund another is not trading. A collector who buys from private sellers on Thursday and lists on Chrono24 on Friday, 14 times a year, is.

Registering before the tax office asks is the cheaper order of events. The tax office assesses undeclared trading income retrospectively, with interest and a penalty. Registering also opens the one tax regime the trade runs on, which is the margin scheme.

Registration by country

The first step everywhere is a business registration. The second is a VAT number. The list shows the authority, the fee and what comes with it.

Registration, fees and VAT by country

Netherlands: Register with KVK (Handelsregister). Fee €85.15 one-off. The Belastingdienst issues a btw-id by post within 10 days of KVK registration. Small-business VAT exemption: KOR, turnover up to €20,000 a year.
Germany: Register with the Gewerbeamt of the municipality (Gewerbeanmeldung), then the Finanzamt questionnaire. Fee €15 to €60 by municipality: Hamburg €20, Berlin €26, Munich €47, Stuttgart €54. The Finanzamt issues a Steuernummer; USt-IdNr from the Bundeszentralamt für Steuern on request. Small-business VAT exemption: Kleinunternehmer, €25,000 prior year and a hard €100,000 cap in the current year.
United Kingdom: Companies House for a limited company, or HMRC self-assessment as a sole trader. £100 digital incorporation since 1 February 2026; £0 for a sole trader. HMRC VAT registration is compulsory above £90,000 taxable turnover in 12 months, voluntary below. No small-business VAT exemption beyond the threshold itself.
France: Guichet unique (INPI) as micro-entrepreneur or société. €0 for a micro-entrepreneur. Small-business VAT exemption: franchise en base up to €85,000 for sale of goods; micro-entreprise ceiling €203,100 in 2026.
Belgium: KBO via an ondernemingsloket. €111.50 per business unit, plus about €70 for VAT activation through the loket. VAT activated at the same time. Small-business VAT exemption: franchise up to €25,000.

Sources: KVK, gewerbe-anmeldung.com, Companies House, service-public.gouv.fr on French 2026 ceilings, Billy on KBO fees, Steuernaut on Kleinunternehmer limits.

The small-business exemptions above are of little use to a watch dealer. A €20,000 or €25,000 turnover is three or four watches. The French franchise at €85,000 lasts a little longer. For anyone buying from other dealers, VAT registration is the normal state, and the question becomes which VAT regime to run.

The margin scheme

A watch bought from a private seller carries no reclaimable VAT. Selling it under normal VAT rules would mean charging 21% on the whole price, which makes a €6,000 watch a €7,260 watch and hands the entire margin to the tax office. The margin scheme charges VAT only on the difference between the buying price and the selling price. Every country in this guide has one: margeregeling in the Netherlands, Differenzbesteuerung under § 25a UStG in Germany, the VAT margin scheme in the UK, TVA sur la marge in France.

The mechanics are the same. The invoice carries no VAT line and instead a prescribed phrase: “bijzondere regeling – gebruikte goederen” in the Netherlands, “margin scheme – second-hand goods” in the UK. The buyer reclaims nothing. The dealer keeps a stock book linking every purchase to its sale, with the purchase document proving no VAT was charged. In the Netherlands a purchase of €500 or more from a private seller needs an inkoopverklaring, a purchase declaration signed by the seller, per the Belastingdienst. HMRC wants the stock book kept for six years, per Stripe's summary of the rules.

The worked example is a Rolex 16610 bought from a collector in Utrecht for €7,200 and sold for €8,400.

A Rolex 16610 at €7,200 in and €8,400 out, both ways

Purchase price: €7,200, either way
Sale price to customer: €8,400, either way
VAT base: Normal VAT rules: €8,400. Margin scheme: €1,200, the margin.
VAT due at 21% (NL): Normal VAT rules: €1,458. Margin scheme: €208.
Dealer's net margin: Normal VAT rules: −€258. Margin scheme: €992.

The margin is taxed at 21/121 of itself in the Netherlands and at one sixth (16.67%) in the UK. A dealer-to-dealer purchase with a VAT invoice goes through normal rules, and the VAT is reclaimed. Stock from a private seller goes through the margin scheme. Both can sit in the same business. The stock book is what keeps them apart.

Cash, identification and the €10,000 line

A dealer who accepts €10,000 or more in cash for a watch, in one payment or several linked ones, is an obliged entity under anti-money-laundering law in every country here. Germany's Geldwäschegesetz has used that threshold since June 2017, per IHK Koblenz, and requires identification of the customer, a copy of the ID and five years of retention. The UK goes further. A business that takes €10,000 in cash must register with HMRC as a high value dealer before the first such payment, at £300 on application, £400 per premises a year and £40 per person checked, per GOV.UK.

The simplest policy is to take no cash above the line. Belgium already bans cash above €3,000; France, €1,000 when a resident pays a business, per the European Consumer Centre Germany. From 10 July 2027 the EU Anti-Money Laundering Regulation sets a union-wide cash cap of €10,000 and names dealers in watches above €10,000 as obliged entities in their own right, per KPMG, with customer identification on occasional cash transactions from €3,000 under Article 19 of Regulation (EU) 2024/1624.

Card and bank transfer are exempt from the registration duty, not from scrutiny. A transfer from a third party's account, or a seller with three Daytonas and no paperwork, goes in the record and, where the law requires, in a report.

Insurance

A shop or home policy does not cover €200,000 of watches in a safe, or the watch in a courier's van. The trade policy is a jewelers' block, which insures stock on the premises, in transit, at fairs and in a customer's hands on approval. TH March, a broker in this class since 1887, lists stock, goods in trust, defective title and theft by staff in the standard form. Chubb publishes a jewellers' block factsheet for the European market. Neither publishes a rate card. Premiums follow the safe rating, the alarm, the claims history and the share of stock that travels.

Transit is the expensive part. Dealers shipping watches that a courier's declared-value cover will not carry use a specialist such as Ferrari Group, Malca-Amit or Brink's, or insure the transit under their own block policy and ship by ordinary registered courier.

Capital and how fast it comes back

The secondary market sold 795,000 watches worth $10.5 billion in the first half of 2026, and the median watch took 43 days to sell, according to EveryWatch's H1 2026 report. The median price was $5,900. The distribution behind the median is wide. A steel Rolex sports model at a fair price sells in a week. A 1960s Universal Genève with a service history nobody can reconstruct sits for a year.

Gross margins on modern pre-owned sit between 10 and 20% for most references. A dealer who sells 60 watches a year at an average €6,000 and a 15% gross margin books €54,000 gross, before the marketplace commissions, insurance, a watchmaker's invoices, shipping and the two watches that were not what the seller said they were.

At a 43-day median turn, €100,000 of stock cycles eight times a year in theory and four or five in practice, because some of it should not have been bought. The margin and turn figures in this section are trade experience, not a published dataset. Cash on hand matters more than the stock figure: a good watch offered on a Tuesday does not wait for a sale on Friday. Vintage needs more of it. A dealer holding 1970s Heuer or early Patek Philippe Calatravas is holding for months, and the margin that justifies it is 25% or more, not 12%.

Where the stock comes from

Private sellers are the hardest source to find and the one where the buying price most often leaves a margin.

Other dealers are the fastest source. A dealer in Antwerp with too many Datejusts sells one to a dealer in Amsterdam at 5% over cost, and both are better off. Dealer-to-dealer trade runs through WhatsApp groups and fairs, and through platforms; Worldwatch is one, a dealer-only marketplace making it easier for starting watch dealers to build their network and find watches to sell.

Auctions could be an interesting buying source, but beware the costs. The buyer's premium at Phillips has been 29% on the first $2 million since 12 April 2026 (25% with priority bidding), per Phillips' rate sheet. Sotheby's charges 28% up to $2 million since 13 February 2026, per the Antiques Trade Gazette, and Christie's 27% up to $1.5 million, per Grossman LLP. A €20,000 hammer is a €25,800 watch before VAT on the premium and shipping. Catawiki sits at the other end: a 12.5% seller fee plus a fixed amount per lot, and a 9% buyer fee plus €3, per Catawiki's help centre.

Where it sells

Chrono24 replaced its Light, Pro and Premium tiers with a single Professional package on 4 September 2024: €199 a month for up to 25 listings, €369 for 50, €629 for 100, rising to €2,199 for 1,000, per Chrono24's announcement. Commission on sales through Trusted Checkout is set per watch by a calculator Chrono24 does not publish. Wristler, a certified-seller marketplace with 277 dealers, 115 of them in the Netherlands, charges €99 a month or €999 a year with no listing limit, per Wristler. eBay UK's business final value fee in Watches, Parts & Accessories is 12.9% on the first £750 of each item and 3% above, plus a £0.40 order fee, per eBay's business seller fee page (the parent Jewellery & Watches category is 14.9% to £1,000 and 4% above, which is the figure most fee guides quote).

A dealer's own site is the only channel where he keeps his immediate costs low, but to be visible is a whole other story and takes years of building and investment. Run the shop alongside two marketplaces and the risk of selling the same watch twice arrives with the third listing of it.

Authentication, and the price of one mistake

Adrian Hailwood, a counterfeit specialist, describes current clone movements as the work of “big factories investing millions.” A dealer who buys one at €8,000 from a private seller has no recourse and no insurance claim. On resale, the dealer has a criminal liability.

The defense is dull and works: open the caseback, check the movement against a known reference, check serial against card and card against dealer stamp, weigh the watch, and when any of that is beyond the dealer's competence, pay an independent watchmaker €80 to €150 to look. In vintage, frankenwatches (genuine parts from three watches in one case) are the more common problem than outright fakes, and only the movement and case numbers resolve them.

The records

A stock book is a legal requirement under every margin scheme here. Each watch gets a number, a purchase date, the seller's name and address, the price, the buying form or invoice, the serial and reference, photographs on arrival, the sale date, the buyer and the price. HMRC asks for six years; the Belastingdienst seven; the German Finanzamt ten for books and invoices under § 147 AO. A spreadsheet does it at 20 watches. At 100 it does not.

The first year's tax return is the first time a dealer sees the whole business on one page: the stock turns, the real gross margin, the watches that sat, the insurance premium against the one loss. The dealer who kept the book properly reads that page in an afternoon.

FAQ

Do I need to register before I have sold anything? Yes. Registration declares the intention to trade, and costs nothing for a UK sole trader and €85.15 in the Netherlands. The margin scheme and a block policy are both unavailable until it is done.

Can I still use the margin scheme if I also buy from dealers with a VAT invoice? Yes. Stock bought with a VAT invoice goes through normal VAT rules and the input VAT is reclaimed; stock bought without one goes through the margin scheme. The stock book must show which is which.

How much starting capital is realistic? €50,000 in stock and €15,000 in cash supports 10 to 12 watches at a €5,000 average and a 43-day turn. Half that works at the lower end of the market; vintage above €10,000 a piece needs more cash and more patience.

What happens if I accept €12,000 in cash once? In Germany and the Netherlands, identification and record duties apply to that transaction. In the UK, accepting it without high value dealer registration is an offense. From July 2027 it is prohibited across the EU.