Moving to Switzerland: A Wealth Strategy to Put in Place
For several years now, moving to Switzerland has been a steady trend among high-net-worth French taxpayers. The motivations are many — tax, economic, wealth-related — but they all answer the same quest: a more stable, more predictable and, in some respects, more efficient environment.
Yet contemplating a move to Switzerland is neither an opportunistic trade-off nor a mere matter of rate differentials. It is a structuring operation that engages all of the taxpayer's legal, tax and wealth parameters, and whose effects must be understood as a whole.
Genuine tax attractiveness, but inherently territorial
The Swiss tax system rests on a fundamental principle of cantonal autonomy. Rather than a uniform reading, Switzerland should be understood as a juxtaposition of tax systems whose balances differ significantly.
Income taxation, while competitive overall, can reach levels close to French standards in some cantons, while others — Zug, for instance — offer markedly more favourable environments. This variability also runs through the taxation of wealth, with a wealth tax whose rules and bases remain heterogeneous.
In matters of succession, the break with the French model is more pronounced: several cantons provide a full exemption in the direct line, giving Switzerland a structural advantage in estate planning.
In this context, the choice of location within Switzerland is a decisive variable. It cannot be separated from a prior analysis of income flows, the composition of assets and succession prospects.
The reality of a transfer of residence: a requirement of consistency
Transferring one's tax domicile carries consequences that go well beyond a mere change of address. It requires an effective reorganisation of the taxpayer's centres of economic and personal interests.
While Swiss law makes settlement relatively accessible for European nationals, the picture must be completed through the lens of French tax law, whose approach remains substance-based. Tax residence status does not follow from a simple declaration, but from an overall assessment of the facts.
In practice, situations of dual residence or disputed tax residence are not uncommon, particularly where the taxpayer retains significant economic interests or predominant family ties in France.
Expatriation therefore calls for overall consistency: organisation of professional activities, location of assets, structuring of income. Failing this, the risk of challenge can neutralise the intended effects.
Lump-sum taxation: an optimisation tool with variable geometry
Expenditure-based taxation is one of the most distinctive features of the Swiss system. Reserved for taxpayers who do not carry on a gainful activity in the country, it replaces the usual declarative logic with an approach based on the standard of living.
This mechanism, which rests on often significant minimum bases, offers greater visibility and, in some configurations, substantial optimisation, particularly in that it neutralises, in principle, the taking into account of foreign income and assets.
Its benefit, however, cannot be presumed. It requires a fine analysis of the taxpayer's economic parameters, as well as a controlled interaction with treaty provisions, whose application can prove decisive.
Here again, practice shows that the most favourable situations result less from the use of the scheme itself than from the quality of its upstream structuring.
Structuring activities: between opportunities and constraints
Expatriation is frequently accompanied by a review of where operating or holding structures should be located.
Transferring the registered office of a French company to Switzerland appears, on its face, a natural option. Nevertheless, French tax law treats such an operation as a cessation of business, triggering immediate taxation of current profits and latent capital gains, as well as the loss of carried-forward losses.
In this context, relocating structures must be approached with particular caution. Strategies consisting of creating new Swiss entities, organising intra-group flows or redeploying operational functions may be relevant alternatives, provided there is genuine economic substance.
The question is not so much where to locate as whether the underlying business model is coherent.
Inheritance taxation: an underestimated systemic risk
The absence of a tax treaty between France and Switzerland on inheritance since 2015 is one of the main points of vigilance.
In this framework, each State applies its own tax rules, with no effective mechanism to eliminate double taxation. This results in situations where the same transfer may be taxed cumulatively, sometimes at levels exceeding the value of the assets transferred.
This configuration, far from theoretical, makes it essential to integrate succession issues very early in any expatriation planning. The location of assets, the residence of heirs and the way assets are held then become critical variables.
Experience shows that the most secure arrangements rest on comprehensive anticipation, combining legal tools, wealth trade-offs and, where appropriate, targeted restructurings.
A necessarily comprehensive approach
Moving to Switzerland cannot be reduced to a one-off tax optimisation. It belongs to a logic of wealth engineering, requiring a cross-cutting reading of the issues.
Choice of canton, tax regime, structuring of assets, organisation of flows, preparation of transfers: each of these parameters forms part of an overall balance that determines the success of the project.
From this perspective, the added value lies less in identifying the existing schemes than in combining them coherently in light of the taxpayer's situation.
More than a geographical move, expatriation is thus an operation of wealth reconfiguration. As such, it calls for a rigorous, strategic and resolutely bespoke approach.
Eve d'Onorio di Méo
Lawyer, Certified Specialist in Tax Law
Marseille and Geneva Bars (EU/EFTA Lawyer)
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