Tax residence, transparency
and patrimonial sovereignty.

The 183-day rule remains a familiar reference point. It still has practical importance in many tax systems.

But it no longer summarises the risk.

A person may spend less than half the year in a country and still retain sufficient links to attract attention: an available home, spouse, children, economic activity, effective management, bank accounts, income, investments, regular presence, real estate or habits of life.

Conversely, formal tax residence in a low-tax jurisdiction can become difficult to defend if it does not correspond to a credible economic, personal and administrative reality.

The question is therefore no longer only:
How many days?

The question becomes:
Where is the real centre of economic and patrimonial life?

And above all:
In which jurisdiction can that life be explained without contradiction?

International capital is no longer invisible.

Automatic exchange of information, transparency standards, banking due diligence obligations, beneficial ownership registers and cooperation between administrations have profoundly changed the relationship between persons, assets and states.

The OECD presents international tax transparency standards as a framework including, in particular, exchange of information on request and automatic exchange of information, including the Common Reporting Standard and the Crypto-Asset Reporting Framework.¹

The Common Reporting Standard requires participating jurisdictions to obtain information from their financial institutions and automatically exchange it with other jurisdictions under common due diligence procedures.²

In other words, capital crossing borders now leaves an administrative shadow.

An account, a company, a beneficial owner, an income stream, a dividend, an insurance policy, a patrimonial structure or a banking operation can now be linked back to a person far more easily than before.

This change does not mean that all optimisation becomes impossible.

It means that optimisation based on opacity becomes structurally fragile.

In the old fiscal world, a low-tax residence could be enough to create the appearance of a solution.

In the new world, it must also be credible.

The problem of modern capital is no longer only where it is taxed. It is whether it can be attached to a stable, respected and defensible tax residence.

A fiscally light residence can become heavy at the precise moment when it has to be explained.

If the person mainly lives elsewhere, if economic decisions are made elsewhere, if the family is elsewhere, if affairs are directed from another country, if banks observe a different reality, if travel patterns tell a different story from declarations, formal residence loses much of its force.

The risk is not only fiscal.
It is documentary.
It is chronological.
It is banking-related.
It may even be psychological: when the taxpayer believes he has organised an absence, while the facts tell the story of a presence.

In this context, Switzerland can be read differently.

It is not a tax haven in the old sense of the term.

It does not offer invisibility. It does not function through the disappearance of the taxpayer.

It is rather a jurisdiction of moderation, stability and credibility.

This distinction is essential.

In a more transparent fiscal world, the best refuge is not necessarily the jurisdiction that taxes least. It is the jurisdiction in which a person can live, invest, declare, structure, transmit and defend his situation without permanent contradiction.

Switzerland taxes individuals on several levels — federal, cantonal and communal — and the rates vary significantly depending on the canton and municipality. Federal direct tax is levied on the income of individuals, while cantons handle assessment and collection on behalf of the Confederation.³

Swiss withholding tax must not be confused with a maximum income tax rate: it is a tax levied at source, notably at 35% on certain returns from movable capital, primarily designed as a guarantee mechanism against tax evasion and refundable under conditions when the corresponding income and wealth are correctly declared.⁴

Switzerland is therefore not a space of fiscal absence.

It is a space where the burden can remain moderate, readable and integrated into a coherent life strategy.

That is very different.

And in the new fiscal world, this difference becomes more important than the theoretical promise of a zero rate.

The lowest rate is attractive on paper.

But an artificially low fiscal burden can be costly if it forces an entire existence to be organised around avoidance.

It can limit freedom of movement, complicate banking relationships, weaken succession planning, expose structures to reclassification, create tension with administrations and make every important decision dependent on fragile justification.

The best fiscal result is therefore not always the lowest rate.

It is the rate that can be explained, paid and defended without organising one’s life around fear of attachment.

Reasonable taxation in a respected jurisdiction can be more protective than theoretically zero taxation in a structure where every element must be justified.

Sustainable optimisation no longer consists in disappearing from the fiscal field.

It consists in choosing the fiscal field in which one can live, invest, transmit and defend oneself.

Serious tax optimisation is not a late manoeuvre.

It does not consist in looking for an exit once the income has already been realised, the sale already decided, the residence already contestable or the structure already in place without a clear logic.

It begins earlier.

It consists in organising how one lives, works, holds assets, is remunerated, invests, transmits and develops an activity in a manner coherent with the applicable tax regimes.

For the public, tax optimisation often remains a mysterious expression. In practice, it is a much more concrete discipline: understanding which choices produce which fiscal effects, and avoiding the discovery of those effects when decisions can no longer be corrected.

The level of taxation does not depend only on the amount earned.

It also depends on the form of income, its chronology, the canton, the municipality, the holding structure, the status of the person, the method of remuneration, the allocation between consumption, investment and capitalisation, and the coherence between declared life and economic reality.

Two financially similar situations can therefore lead to very different tax burdens, not because one is concealed and the other is not, but because one was structured before the tax consequences became irreversible.

Sustainable optimisation does not consist in circumventing the system.
It consists in understanding its logic early enough not to place oneself in the most expensive scenario.

Switzerland is also strengthening its transparency.

This movement should not be understood only as a constraint. It can also reinforce the value of properly documented situations.

The future Federal Act on the Transparency of Legal Entities and the Identification of Beneficial Owners — LTPM — provides in particular for the creation of a central federal register of beneficial owners, also referred to as the transparency register. According to the Federal Council, this register is intended to allow competent authorities to access reliable information quickly on the beneficial owners of a legal entity; it will be managed by the Federal Department of Justice and Police, and the draft ordinances were under consultation until 30 January 2026.⁵

This register does not place Switzerland in a logic of general public exposure of wealth.

It places Switzerland in a different logic: controlled transparency, restricted access, structured information, anti-money-laundering standards, KYC quality and the capacity of competent authorities to understand structures.

For a properly organised situation, this evolution can become a protection.

A clear, documented, coherent and declared structure suffers less from transparency than an ambiguous structure.

Transparency punishes improvisation.
It rewards coherence.