Administrative and tax rules in France for UK companies

For UK companies, administrative and tax rules in France should be built into the market-entry model before the first invoice, shipment or employee assignment. Holding stock, importing goods, making taxable sales or paying salaries taxable in France can create Value Added Tax (VAT), payroll or reporting duties even without a French subsidiary. Audrey Guggino Crenu, Partner at Forvis Mazars and a service provider in the UK Business Centre Lille (UKBC Lille) network, warns that avoidable problems often start when compliance is left until later.

• French obligations can arise without a subsidiary.
• The standard corporate income tax rate is 25%, but exposure depends on the operating model.
• Accounting, VAT, payroll and intercompany data need clear owners and a shared calendar.
• E-invoicing and e-reporting duties begin from 1 September 2026.
• Innovation incentives require eligible activity and supporting evidence.

Corporate tax needs a separate review. A foreign company planning activities in France without creating a French entity can request a ruling on whether its model creates a permanent establishment. The French administration has three months to reply once it receives a complete request.

The practical question is: which activity creates which French obligation, and from what date? A qualified specialist should validate the answer before contracts, stock flows or staffing arrangements are fixed.

France applies a 25% standard corporate income tax rate. Certain small and medium-sized companies can benefit from a 15% reduced rate on the first €42,500 of taxable profits, provided they meet the eligibility conditions. These include annual turnover below €10 million and specific requirements regarding share capital and ownership. Profits above €42,500 remain subject to the standard 25% rate.

For a UK company setting up a French subsidiary, the headline rate therefore gives only part of the picture. The structure of the French company, its expected profits and its ownership should be reviewed before modelling the effective corporate tax cost.

Corporate tax returns are filed electronically. Under the normal real tax regime, companies must keep supporting documents, record transactions chronologically, complete an annual inventory and prepare annual accounts. They also maintain a journal and general ledger.

These duties affect the set-up of finance systems. UK headquarters must decide how its chart of accounts will map to French accounts, who will close the books, how VAT codes will be configured and where evidence will be stored. Payroll, expenses and intercompany charges must reconcile with the accounting records. Consistent data becomes particularly important when tax reporting draws information from several systems or entities.

A workable compliance calendar assigns owners to registrations, invoices, VAT returns, corporate tax, annual accounts, payroll and intercompany documentation. It should distinguish tasks handled by the French operation, UK headquarters and appointed specialists.

Forvis Mazars is one of the UK Business Centre Lille service providers available to support international companies, including UK businesses, on accounting, tax, legal, payroll, audit and advisory matters. Its bilingual teams combine local knowledge in Hauts-de-France with access to international specialists. The firm operates through an integrated international network, which can help a company coordinate French requirements with the reporting and governance expected by its UK headquarters.

The benefit for a British company is faster access to the relevant expertise and a more consistent view of the project. Instead of treating bookkeeping, VAT, payroll, legal structure and tax reporting as separate workstreams, the company can identify dependencies earlier, assign clear responsibilities and make decisions from a shared set of information. Within the UKBC Lille network, this coordinated model helps reduce avoidable rework while keeping each regulated matter in the hands of the appropriate specialist.

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A French operation may also make payments to its UK parent company through dividends, interest or royalties. These cross-border flows need to be reviewed alongside corporate tax because French withholding tax rules and the France-UK tax treaty can affect the amount ultimately received by the UK company.

Under the France-UK Double Taxation Convention, dividends paid by a French company to a UK company can qualify for a 0% French withholding tax rate where the UK company is the beneficial owner, is liable to corporation tax and holds at least 10% of the capital of the French company. Other qualifying dividends are generally capped by the treaty at 15%. Interest and royalties beneficially owned by a UK resident are generally taxable only in the UK under Articles 12 and 13 of the convention.

The treaty therefore matters when designing financing, intellectual property arrangements and profit repatriation between France and the UK. Its benefits are subject to conditions, including beneficial ownership and anti-abuse provisions, so the treatment of each flow should be checked before payments are made. The 2008 France-UK convention remains in force and has been modified by the Multilateral Instrument.

France’s electronic invoicing reform makes tax data part of market entry. From 1 September 2026, businesses established in France and subject to VAT must be ready to receive electronic invoices. Large and mid-sized companies begin issuing them and transmitting relevant transaction data from that date. Those duties extend to small and medium-sized businesses and microbusinesses on 1 September 2027.

A UK company without a French permanent establishment may fall outside domestic e-invoicing yet still face e-reporting for some French transactions on which it owes VAT. Foreign companies within scope must use an approved platform by their applicable date.

Customer and supplier data, VAT codes, invoice fields, payment information and platform access therefore need testing before launch. Forvis Mazars’ tax transformation guidance also links reliable tax reporting to consistent data across finance systems and entities.

🔎Learn more about accounting in France and what support you can benefit from

France’s research tax credit, the crédit d’impôt recherche (CIR), is currently calculated at 30% of eligible research expenditure up to €100 million, then 5% above that threshold.

According to Audrey Guggino Crenu, eligibility depends on the current rules, company status, work performed and expenditure recorded to benefit from start-up schemes. These programmes should be assessed against the actual project rather than treated as an automatic benefit.

Companies planning a claim should identify eligible work early, separate technical and financial evidence and define who reviews the file before submission. A specialist should validate the eligibility and documentation.

Administrative and tax rules in France become easier to manage when they are tied to the operating model from the start. Map the triggers, assign responsibility for data and deadlines, and test the systems needed for VAT, payroll and e-reporting.

Early coordination reduces avoidable rework and gives management a clearer basis for decision-making. The UKBC Lille can help assemble the Cross-Channel expertise required for that first review.

Information note: This article provides general information. Tax, legal and accounting positions depend on the company’s activities and should be validated by qualified professionals.

What corporate tax rate applies to a UK company operating in France?

The standard French corporate income tax rate is 25%. Eligible SMEs can benefit from a 15% reduced rate on the first €42,500 of taxable profits, provided they meet conditions relating to turnover, share capital and ownership. Profits above that threshold are taxed at the standard rate.

Does a UK company need a French subsidiary to create tax obligations in France?

Not necessarily. A UK company can create French tax, VAT or reporting obligations without incorporating a French subsidiary, depending on its activities, local presence, employees, stock movements and transactions. The operating model should be reviewed before trading begins to determine which registrations and declarations may apply.

Are dividends, interest and royalties paid to a UK parent company subject to French withholding tax?

The treatment depends on the type of payment and whether the conditions of the France-UK Double Taxation Convention are met. Under the treaty, qualifying dividends can benefit from reduced or zero French withholding tax, while qualifying interest and royalties beneficially owned by a UK resident are generally taxable only in the UK. Treaty eligibility and anti-abuse conditions should be checked before payments are made.

How does the France-UK tax treaty affect British companies?

The France-UK Double Taxation Convention sets rules on how income and profits are taxed between the two countries and helps prevent the same income from being taxed twice. It covers issues including permanent establishments, dividends, interest, royalties and double tax relief. The application of the treaty depends on the company’s specific structure and transactions.

Will UK companies be affected by France’s e-invoicing and e-reporting reform?

Potentially. France’s reform begins on 1 September 2026, with obligations phased according to company size and transaction type. Foreign companies without a permanent establishment in France can still face e-reporting obligations for certain transactions subject to French VAT. Companies should check their scope and ensure their invoicing and finance systems can produce the required data.