Luxembourg case law: ensure your structures comply with substance, governance and tax requirements

Two recent decisions from a French Administrative Court of Appeal and the Luxembourg Administrative Tribunal provide further guidance on how tax authorities and courts assess substance, effective management and cash‑flow arrangements in cross‑border structures involving Luxembourg companies.  

For Luxembourg structures in particular, these decisions reinforce the importance of involving tax lawyers and advisers early, both at the structuring stage but throughout the life of the vehicle - and highlight why taking a reactive or “wait and see” approach can prove costly. 

French tax scrutiny of Luxembourg holding companies: why substance really matters 

Over recent years, the French tax authorities and courts have significantly intensified their scrutiny of foreign holding structures, particularly Luxembourg companies owned, managed or controlled by French tax residents. This forms part of a broader fight against artificial arrangements lacking genuine economic substance.  

In line with previous French case law, recent decisions of the French Administrative Courts reaffirm the position of the French tax authorities in this matter. 

Most notably, the decision of the Nantes Administrative Court of Appeal (24 March 2026), following the approach adopted by the Versailles Administrative Court of Appeal (8 January 2026), confirmed that a Luxembourg company is deemed to be carrying on business in France where it lacks economic substance in Luxembourg and where its effective management is located in France. Accordingly, the French tax authorities took the view that this company had a permanent establishment in France as per the double tax treaty between Luxembourg and France. 

The Court sided with the French tax authorities, emphasising that the company had no genuine presence in Luxembourg beyond a mere domiciliation address. It had no employee, no operational premises and no autonomous decision-making power at local level. All strategic, commercial and operational decisions were taken from France by the company’s director, who was resident there and actively involved in negotiating and managing contracts from France. 

Formal elements such as holding board meetings in Luxembourg or having bank correspondence sent there were considered insufficient to counterbalance the factual reality. As a result, the Court upheld reassessments to French corporate income tax and value added tax, together with 80% penalties for hidden activity and the application of extended limitation periods. 

Key takeaways: 

• This is a clear reminder that actual substance is of the essence: foreign legal incorporation does not prevent taxation where decision‑making and business activity are effectively carried out 
• The effective place of management is assessed based on factual elements and concrete evidence, not on mere corporate documentation 
• A lack of substance may also trigger extended limitation periods, double taxation situations and severe penalties 
  
  

Cash repatriation and withholding tax risk in Luxembourg 

Almost simultaneously, on 25 March 2026, the Luxembourg Administrative Tribunal ruled on the tax treatment of a distribution booked as a repayment of share premium (decision no. 45846a). 

In this case, a Luxembourg company distributed amounts corresponding to profits previously booked as share premium to its shareholders, while the share premium amount was not exceeding its original level following initial shareholders' investment.  

In essence, the company argued that this operation was a repayment of contributions made by the shareholders, not subject to the 15% Luxembourg withholding tax. 

The Luxembourg tax authorities recharacterised the distribution as income from capital and treated it as subject to withholding tax. Their reasoning was that, under Luxembourg law, share premium is not part of the share capital and only a distribution made as part of a formal share capital reduction can, under strict conditions, be tax neutral. As there was no share capital reduction here, the distribution had to be treated as income from capital and subject to withholding tax. 

It is not yet known whether an appeal will be lodged before the Administrative Court. An appeal would, however, be both expected and welcome, given the number of questions raised by the Tribunal’s decision. If not appealed and overturned, this decision may have significant implications on the way cash extractions from Luxembourg companies are currently managed in Luxembourg on the market.  

This highlights the need to remain particularly vigilant when structuring upstream cash flows to ensure that distributions are properly analysed from both a corporate and tax perspective, with appropriate documentation and advice. 

Key takeaways 

Beyond the specific facts of each case, this recent case law delivers a clear and consistent message: management decisions should be assessed in a holistic manner, taking into account the tax aspects, possible risk of abuse, the adequacy of economic substance and the mechanics of cash flows.  

This approach is essential for minimising tax risk and ensuring compliance with both local and international standards such as: 

• adequate economic substance and effective governance 
• careful structuring and monitoring of cash extraction mechanisms 
• ongoing tax follow‑up and compliance 
• properly maintained accounting and legal documentation 
• robust corporate governance aligned with operational reality 
  
  

How can Ogier help?  

Our tax experts would be pleased to assist you in ensuring that your structures comply with substance, governance and tax requirements. Should you require any tax advice, contact our Luxembourg team. 

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Disclaimer

This client briefing has been prepared for clients and professional associates of Ogier. The information and expressions of opinion which it contains are not intended to be a comprehensive study or to provide legal advice and should not be treated as a substitute for specific advice concerning individual situations.

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