Setting up in the UK from abroad

UK subsidiaries for French companies

France sends more investment projects to the UK than any country except the United States and India. The UK company is straightforward; the VAT and customs position after Brexit is where the work is.

64investment projects into the UK last year
4,228UK jobs those projects created
25%UK corporation tax, for most groups

Department for Business and Trade, inward investment results 2025 to 2026

What changes when the parent is in France

At a glance

Corporation tax
25% over £250,000, 19% up to £50,000, thresholds divided across the group
Withholding tax on dividends
None
Goods moving from France
Customs declarations and an EORI number since Brexit; import VAT can be postponed to the return
Social security
The UK–EU protocol covers posted workers, so staff can often stay in the French system with a certificate
Audit
Decided by the size of the whole group, not the UK company
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French groups run 64 investment projects into the UK in a year, third behind the United States and India. The company law side is simple, and a French parent will find UK incorporation dramatically lighter than the French equivalent: one day, no notary, no minimum capital, no statutory auditor unless the group is large enough to need one.

What takes the time

Since Brexit, goods moving between France and the UK cross a customs border. The UK subsidiary needs an EORI number, a customs agent, and import VAT accounted for on its own VAT return rather than paid at the border, which we set up at registration. Services are simpler: most business-to-business services bought from the French parent are taxed where the customer is, so the UK subsidiary accounts for the VAT itself under the reverse charge and, if it is fully taxable, reclaims the same amount on the same return.

People

The UK–EU Trade and Cooperation Agreement covers social security for workers posted between the two, so a French employee posted to the UK can generally stay in the French system with a certificate rather than paying UK National Insurance. UK income tax follows where the work is done. Anyone without UK work rights needs the company to hold a sponsor licence.

Money going home

No UK withholding tax on dividends to the French parent. Interest and royalties are subject to 20% UK tax at source unless the UK–France treaty reduces it and the claim is made to HMRC before payment, which we handle. Intercompany charges between the parent and the subsidiary must be at arm's length and written down.

Three things we set up differently for a French parent

  1. The accounting standard. A French group reporting under French GAAP has a choice for the UK statutory accounts. FRS 102 is the default. Where the group also reports under IFRS, FRS 101 aligns the UK numbers with the group's so consolidation does not need a second set of adjustments. We decide this at set-up, not at the first year end.
  2. The ownership register. Where the shareholder is an SAS or SARL, the UK register generally has to name the individuals who ultimately control it rather than the company itself. French holding structures often run through several entities, and this is the item most often wrong on incorporations done from France.
  3. Customs from day one. Goods from France cross a customs border. The EORI number, the customs agent and postponed import VAT go in with the VAT registration rather than being arranged when the first pallet is already at Dover.

What French groups find lighter here

UK incorporation needs no notary, no minimum capital, no publication in a legal journal and no statutory auditor unless the group is large enough to require one. A company is formed online in a day for £100. The trade-off is that the accounts of even a very small UK company are then published on a register anyone can read.

Employment is the other direction. UK dismissal is easier than in France but is not free: there is no at-will employment, notice is contractual and statutory, and a fair reason and a fair process are both required. Budget one to three months of notice for a senior hire.

Worked example

A composite built from the situations we handle, not a named client.

A Paris software company wins two UK enterprise customers who both require a UK contracting entity. We incorporate the subsidiary, register it for corporation tax and PAYE, and register for VAT voluntarily so the VAT on a year of UK recruitment, software and legal costs is recovered. Services invoiced from the French parent to the UK company are handled under the reverse charge, so nothing is paid across but the entries are on the return and count towards the threshold. Two salespeople go on UK payroll; a French engineer spending a week a month in London stays in the French social security system on a certificate under the UK–EU protocol.

Common questions

Is a French SAS or SARL fine as the shareholder?

Yes. Any corporate shareholder can hold the UK company's shares. The ownership register usually needs the individuals who ultimately control the parent, unless it is listed.

Do we need a UK auditor?

Only if the whole group is above the small-group limits. A French group that already has a commissaire aux comptes is usually above them.

Can we keep selling into the UK without a company?

Often yes, but selling from France into the UK with no UK establishment can require UK VAT registration from the first sale, because the registration threshold does not apply to a business with no UK establishment.

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Tell us where the parent company is and what the UK operation has to do.

Peter Allen
Peter Allen
Co-founder — answers these himself

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