For several years, the European debate about wealth taxation appeared to be moving in one direction: away from it. France abolished its broad wealth tax in 2017 and replaced it with a tax focused on real estate. Sweden had abolished its wealth tax years earlier, while other European countries had reduced or abandoned forms of annual taxation on net wealth.

The assumption was relatively straightforward. Wealth is mobile, and if governments tax it too aggressively, wealthy people can move. Capital can move even faster.

But the wealth-tax debate is back, and this time it is returning in a very different fiscal and political environment.

The Fiscal Problem

European governments have a problem. Public spending has increased, debt has increased and interest costs have increased. At the same time, governments are under pressure to finance healthcare, pensions, defence, infrastructure and the transition to a lower-carbon economy.

The obvious political question is:

Who should pay?

The wealthy are an obvious target. In France, the debate became particularly visible in 2024 as the new government looked for ways to address the country’s deteriorating public finances. The government indicated that additional taxation would be concentrated on the wealthiest households rather than being imposed broadly across the population. Budget Minister Laurent Saint-Martin said in October 2024 that the proposed measure would affect less than 1% of households and would target the very wealthiest taxpayers.

That is politically understandable. But taxation of wealth is not the same as taxation of income, and that distinction matters.

Wealth Is Not Cash

A wealthy individual may own €100 million, but that does not mean they have €100 million sitting in a bank account. The wealth may consist of shares in a private company, listed securities, commercial or residential property, private equity investments, venture capital, art, operating businesses, family holdings or interests in investment structures.

A tax on wealth therefore creates a different economic question from a tax on income. If the tax bill is calculated annually against the value of assets, the investor may have to generate liquidity to pay it. That liquidity has to come from somewhere: dividends, asset sales, borrowing or potentially restructuring investments into forms where the tax treatment is different.

This is where wealth taxation begins to influence investment behaviour. An asset can increase substantially in value without producing any corresponding cash flow. A founder whose company becomes more valuable, for example, may be significantly wealthier on paper without having received additional income with which to pay an annual tax.

That distinction is at the heart of the wealth-tax debate.

France Is the Interesting Case

France provides perhaps the clearest European example. France does have a wealth tax, but it is principally a tax on real estate wealth rather than a general annual tax on financial wealth.

The Impôt sur la Fortune Immobilière, or IFI, replaced the former ISF from January 2018 and applies where net taxable real-estate wealth exceeds €1.3 million. The tax can also apply to certain real-estate interests held indirectly through companies.

That distinction was deliberate. The 2017 reform transformed the ISF into the IFI and was presented as part of an effort to encourage investment in businesses and productive capital rather than continuing the former broad wealth tax on financial assets.

But the political debate has not disappeared. If anything, it has returned in a broader form.

France therefore provides an interesting lesson. A government can retreat from a broad wealth tax while continuing to tax a particular form of wealth. And when fiscal pressure increases, the political debate can return even if the underlying tax architecture has changed.

Italy Is Moving Too

Italy provides a different example.

In August 2024, Italy doubled the annual lump-sum tax on foreign-source income for qualifying new residents from €100,000 to €200,000. The increase was subsequently confirmed by Parliament in October 2024.

That is not a conventional wealth tax. But it demonstrates something important: even countries that have actively competed for wealthy foreign residents are reconsidering the price at which they are prepared to do so.

The regime remains attractive because the €200,000 payment can substitute for ordinary taxation of qualifying foreign income regardless of the amount of that income. The new rate applies to individuals entering the regime after the August 2024 change, while existing participants were not retrospectively subjected to the higher amount.

That changes the economics of tax residence.

The question for an HNWI is no longer simply:

Where can I obtain the lowest tax rate?

It is:

What am I receiving in exchange for the tax I am paying?

That is a much more sophisticated question, particularly for an investor whose assets and income are spread across multiple jurisdictions.

Spain Has Taken Another Route

Spain has also moved further toward taxing substantial wealth. Its Temporary Solidarity Tax on Large Fortunes sits alongside existing regional wealth taxes and is designed to impose an additional state-level charge on substantial net wealth.

The tax applies to net wealth above €3 million and was created by Law 38/2022.

The model is important because it demonstrates that governments do not necessarily need to rely on a single national wealth tax. They can build layers: income tax, capital gains tax, property tax, inheritance tax, wealth tax, solidarity taxes and special taxes on particular assets or structures.

For an internationally mobile investor, the combined burden matters much more than any single headline rate.

The Wealth Tax Is Really a Location Tax

This is the part policymakers sometimes overlook.

For a normal employee, income tax is largely unavoidable because the employee works where they live. For an internationally mobile entrepreneur or investor, the decision is different. They can potentially choose where they live, where they become tax resident, where they hold investments, where they establish companies, where they purchase property, where their family is based and where they eventually transfer their wealth.

Tax therefore becomes part of the location decision.

This does not mean every wealthy person will leave because of a tax increase. Most will not. But the marginal investor may, and the marginal investor can be economically important.

The broader European shift in the geography of wealth was already becoming increasingly visible.

The €10 Million Investor Is Different From the €100 Million Investor

This is another reason wealth-tax policy is complicated.

A person with €10 million may own a business, a home and a portfolio of investments. A person with €100 million may have a family office, private equity investments, international property, holding companies and investments across several jurisdictions. At €1 billion, the structure becomes even more complex.

The larger the fortune, the greater the ability to change the structure around it.

This does not necessarily mean avoiding tax. It means that the investor has more choices.

And choices create tax competition.

The important point for policymakers is that wealth is not static. A tax system may appear manageable when viewed against a domestic balance sheet, but the wealthiest individuals increasingly have the ability to change the composition, location and structure of that balance sheet.

Governments Are Competing for More Than Tax Revenue

There is an uncomfortable reality for governments.

A wealthy resident does not only pay tax. They may employ people, buy property, invest in companies, create businesses, use professional services, employ lawyers, accountants and wealth managers, spend money locally, support schools and contribute to the broader service economy.

A family office can generate an entire economic ecosystem.

That means the fiscal calculation cannot simply be:

How much tax can we extract?

It has to be:

What is the total economic contribution of this person or family?

That is a much more complicated calculation.

It is particularly important for smaller economies, where a relatively small number of wealthy families can have an outsized economic impact.

Monaco Remains the Obvious Counterexample

Monaco demonstrates the other side of the argument.

It has built an economic model around being attractive to internationally mobile wealth. The proposition is not simply taxation. It includes security, infrastructure, location, lifestyle, banking, professional services, political stability and proximity to major European economies.

For wealthy individuals, particularly those with substantial investment portfolios, the value of a jurisdiction is therefore broader than its tax rate.

This is why tax competition does not simply disappear when governments increase taxes. It becomes more sophisticated.

The Real Competition Is Between Systems

The future competition between European jurisdictions is unlikely to be a simple contest between high tax versus low tax.

It will increasingly be:

high tax plus high value

versus

low tax plus low value.

A wealthy investor may happily pay more tax in a jurisdiction if the additional cost buys something valuable: security, education, infrastructure, political stability, access to capital, healthcare, business opportunities, a strong legal system or a functioning financial centre.

The problem arises when the investor believes that the tax burden is increasing while the value of the jurisdiction is declining.

That is when relocation becomes more attractive.

The Wealth Tax Paradox

This creates what I would call the wealth-tax paradox.

A government can increase the tax rate on wealth, and that can increase revenue. But if the tax changes the behaviour of investors, the long-term revenue effect may be different.

The investor may sell an asset, change the structure, move an investment, change residence or move the family office.

The tax authority sees the immediate tax receipt.

The economy experiences the longer-term consequences.

This does not mean that wealth taxes never work. It means that their effectiveness depends heavily on design.

The French experience is instructive. The 2018 replacement of ISF with IFI was intended partly to reduce incentives for wealthy taxpayers to leave and to encourage investment towards businesses rather than property, although subsequent analysis has cautioned against attributing changes in expatriation solely to the reform.

The same principle applies more broadly: the behavioural response to taxation can be as important as the tax itself.

The Asset Matters

There is also a major difference between taxing productive and non-productive wealth.

A €20 million portfolio invested in operating businesses is economically different from a €20 million collection of empty residential properties. A family-owned manufacturing company is different from a portfolio of speculative land. A venture-capital investment is different from a second home.

Tax policy that treats all wealth identically may therefore produce unintended consequences.

Governments increasingly need to ask not only:

How much wealth does this person have?

but:

What form does that wealth take?

That distinction becomes particularly important when governments are simultaneously trying to attract investment, encourage entrepreneurship and increase domestic productive capacity.

This Matters for Investment Migration

This is where the wealth-tax debate intersects with investment migration.

For years, investment migration was largely marketed around a simple proposition: invest, obtain residence and enjoy the benefits.

But sophisticated investors increasingly look at the entire tax and investment environment.

If one country offers residence but imposes a substantial annual tax on a particular asset base, while another offers residence with a materially different treatment of investment wealth, the difference can be enormous over ten or twenty years.

Residence is therefore becoming an investment decision.

The investment-migration market was already moving beyond simple property acquisition towards funds and other forms of capital allocation.

The Family Office Changes the Equation

This is particularly true for family offices.

A family office can coordinate investment management, tax planning, succession, philanthropy, property, private equity, venture capital, banking, insurance and residence planning. Once wealth reaches this level, moving a family is not necessarily the difficult part.

The difficult part is determining where the family should ultimately be based.

That decision is increasingly made by comparing entire jurisdictions rather than individual tax rates.

The family office therefore becomes an important control centre for a family whose assets, businesses and personal interests extend across multiple countries.

The Return of the Debate Does Not Mean the Return of the Old Wealth Tax

This is an important distinction.

The political debate may return. But the old European wealth-tax model does not necessarily return with it.

Governments have learned that capital is mobile. They have also learned that financial assets are much easier to move than real estate.

As a result, future wealth taxation may take different forms: property taxes, minimum effective taxation, targeted taxes on very high net worth, exit taxes, inheritance taxes, special taxes on holding structures or taxation based on deemed income from assets.

The policy toolbox is becoming broader.

The important consequence is that investors cannot simply monitor whether a country has a wealth tax. They need to understand the direction of the entire tax system and how different taxes interact.

Investors Should Watch the Direction, Not Just the Rate

For wealthy investors, the most important issue is not necessarily the tax rate today.

It is the direction of travel.

A jurisdiction with a 2% wealth tax today may be more attractive than one with no wealth tax today if the latter is moving rapidly toward higher taxation. Likewise, a jurisdiction with a higher headline tax rate may become more attractive if it provides long-term stability.

Predictability has value.

Tax certainty has value.

Political stability has value.

The same principle applies to investment migration. Programmes and tax regimes can change, sometimes faster than the underlying investment can be unwound.

For a long-term investor, the direction of policy can therefore matter more than the position on a single day.

Europe Is Entering a New Tax Competition

The irony is that the return of the wealth-tax debate may actually intensify competition between European jurisdictions.

As some countries increase taxation, others have an opportunity to differentiate themselves.

This is already visible across Europe. Italy has its special regime. Greece has positioned itself as an investment-migration and tax-residence destination. Portugal has historically used tax incentives to attract foreign residents, although its regime has also been changing. Switzerland continues to offer a distinctive wealth-management proposition, while Monaco remains an extreme example of the low-tax wealth model. Cyprus and Malta compete through different combinations of tax, residence, investment and financial infrastructure.

The map is becoming more complicated.

The result is a European market in which wealthy individuals increasingly compare entire jurisdictional propositions rather than individual tax rates.

The Wealthy Are Not Choosing Tax Rates

This is perhaps the most important point.

A sophisticated investor is rarely comparing:

Country A: 20%.

Country B: 25%.

Country C: 30%.

They are comparing the entire system.

Tax, residence, inheritance, capital gains, property, investment opportunities, banking, regulation, political stability, family considerations and the ability to move capital all form part of the decision.

The tax rate is one variable.

It is not the whole decision.

For a family with substantial international assets, the question is ultimately whether the jurisdiction provides an environment in which wealth can be preserved, invested, transferred and managed over multiple generations.

The Next Stage of Tax Competition

The European wealth-tax debate is therefore unlikely to disappear.

Governments need revenue. Political pressure to tax wealth is increasing. At the same time, wealthy individuals remain internationally mobile.

That creates a permanent tension.

Governments want to tax wealth.

Jurisdictions want to attract wealth.

Investors want predictability.

And capital wants flexibility.

The countries that understand this tension will probably design better tax systems. The countries that ignore it may discover that the tax base is more mobile than they expected.

The return of the wealth-tax debate is therefore not simply about whether wealthy people should pay more. It is about where they will choose to live, where they will invest, how they will structure their assets and ultimately which jurisdictions will benefit from their presence.

The real competition for wealth is not over the tax rate.

It is over the investor.