The tax shield allows wealth tax to be capped in certain cases. This mechanism is in place in six cantons. In the Canton of Vaud, its application is a subject of debate. What is it all about and how does it work?
This tax cap mechanism is designed to prevent confiscatory taxation. It was introduced by certain cantons to safeguard their taxpayers’ property rights (Art. 26 of the Constitution) and to ensure that taxation is commensurate with taxpayers’ ability to pay (Art. 127 II of the Constitution). Thus, this mechanism aims to prevent taxpayers with little or no income from having to draw on their assets to pay their taxes over an extended period.
The tax shield primarily applies to taxpayers with assets that generate little or no income. Of course, there are certain conditions that must be met to qualify for it. We discuss this with Cedric Panchaud, attorney and certified tax expert at PANCHAUD Tax & Legal SA.
What is the basic principle behind the shield?
The tax shield is a protective mechanism designed to prevent confiscatory taxation. The tax shield means that if your wealth does not generate sufficient income, your wealth tax will be limited/reduced. The best example is the Bernese tax shield. It calculates your wealth tax and looks at its return. If your wealth tax exceeds 25% of the return on your wealth, the shield applies and caps your wealth tax at 25% of the return on your wealth. In the absence of income, the minimum wealth tax is set at 0.24% (which corresponds to a hypothetical return on wealth of 0.96% p.a.).
Which cantons have implemented a tax shield?
Currently, Geneva, Vaud, Valais, Bern, Basel-City, Lucerne, and Aargau have a tax cap. With lower wealth tax rates, the other cantons do not necessarily need one. For example, Obwalden has a rate of 0.14% (starting at CHF 1 of taxable wealth) (see Hinny/Eckert, Tax Law 2025, p. 2929).
In other cantons, it remains high, as in Neuchâtel (0.68%, starting at CHF 1 million in taxable assets) (see Hinny/Eckert, Tax Law 2025, p. 2929), but the decision not to have a tax shield is likely a political choice.
Does it apply in the same way in all French-speaking cantons?
No it does note. Geneva and Vaud were once very similar, but Vaud has since changed its calculation basis. Under Geneva's tax shield, total municipal and cantonal taxes (income and wealth) are capped at 60% of net taxable income. However, the direct federal tax (11.5%) on income must also be added, bringing the maximum effective income tax rate to 71.5%.
Since December 2021, Vaud has raised the threshold for entry into the tax shield in certain cases, for instance by taking into account dividends that are eligible at 100% (instead of their taxable basis of 70%) for the calculation of the tax shield. This new methodology is causing a stir among taxpayers, representatives, and politicians.
The Valais, on the other hand, has a completely different system. To put it simply, “taxpayers subject to unlimited taxation whose cantonal and municipal taxes on wealth and on net income from wealth exceed 20 percent of their net taxable income are entitled to a tax reduction. […] A minimum tax of half the wealth tax applies in all cases 1.
In general, shields apply automatically, provided that the conditions are met.
What is the current status of discussions regarding the Vaud tax shield?
What are the quantified benefits of the tax shield?
In practical terms, to use the example of Geneva, the tax shield stipulates that the total cantonal and municipal tax burden must not exceed 60% of taxable income. Thus, in simple terms, if you have assets worth CHF 10 million, your cantonal and municipal tax could be capped at CHF 60,000. For the shield to be effective, your investment income would therefore need to amount to exactly 1% (in this case, CHF 100,000) and you would need to have no other income . This typically requires upfront work to structure your income and assets.
It follows from the above that, paradoxically, very small and small businesses are often too profitable for their owners to qualify for the tax cap. For example, if the tax authorities value the shares of your corporation at CHF 5,000,000, the corporation pays you an annual salary of CHF 200,000, and you have no other sources of income or assets, then your cantonal and municipal taxes could, very roughly speaking, be capped at around CHF 150,000 2, which is well above the effective tax burden (approximately CHF 85,000 3). In other words, the shield does not apply. For it to apply, the salary would have to be eliminated and dividends distributed up to 1% of the value of the shares. This would, however, have other consequences that should be anticipated (AVS, increase in share valuation, LPP, etc.). Finally, in our example, it would not necessarily be easy to maintain one’s standard of living (including taxes) on CHF 50,000.
Debates surrounding the wealth tax are on the rise. This is particularly evident with the l’Initiative sur l’avenir, which was rejected on November 30, 2025, in Switzerland, and the Zucman tax, which has stalled in France. As a tax expert, what is your take on this?
In Switzerland, the wealth tax dates back to the Napoleonic era, when it replaced the customs duties collected by the cantons. It represents a significant source of revenue for local governments, accounting for approximately 10% of cantonal and municipal revenues. That is substantial. Furthermore, revenue from this tax is relatively stable over time and fluctuates less than that from income tax. Finally, it allows for consistency checks, ensuring that individuals have properly declared all their income. Is wealth tax fair? It’s an eternal debate. The tax base for the wealth tax includes, in part, assets that have already been taxed once through income tax, and on which the taxpayer is, in a sense, penalized simply because they have not spent the money.
As it stands, is the tax shield still an appropriate tool?
I would readily advocate for the abolition of tax caps if the wealth tax rate were significantly lower. Obwalden, for example, has a rate of 0.14% (rate excluding church tax, calculated from the base tax rate of 0.02% multiplied by the municipal and cantonal coefficient for Sarnen (OW) of 7.11 for 2026, see Art. 55 para. 2 LI-OW, RS-OW 641.4 in conjunction with https://www.ow.ch/publikationen/8258) does not need a shield. This means less work for the administration or tax advisors and greater transparency for everyone. However, there currently appears to be no political support for this in the French-speaking cantons.
- Ordinance on the confiscatory nature of wealth tax dated August 14, 2002, RS-VS 642.300. ↩︎
- Theoretical return on assets: 1% of CHF 5,000,000 plus salary of CHF 200,000, i.e. CHF 250,000 in total. The ceiling corresponds to 60% of CHF 250,000, or CHF 150,000. (In practice, however, net wealth and net income are used as a calculation basis, which would need to be included in the above simulation). ↩︎
- Single person, no children, no religion, residing at 1204 Geneva, tax rate 2025 (salary CHF 200,000, assets CHF 5,000,000). ↩︎
Currently, seven cantons have a tax cap in place: Geneva, Vaud, Valais, Bern, Basel-Stadt, Lucerne, and Aargau. The other cantons do not have one, largely because of lower wealth tax rates.
The Geneva tax cap limits the combined cantonal and municipal tax burden to 60% of net taxable income. However, when calculating this cap, the tax authorities assume a minimum theoretical return of 1% on net assets, even if the actual return is lower. For example, a taxpayer in Geneva with no income but with assets of CHF 10 million will be deemed to receive at least CHF 100,000 in income from their assets. The cantonal and municipal taxes taken into account by the tax shield may therefore not exceed CHF 60,000 (CHF 10,000,000 × 0.1 × 0.6).
Direct federal income tax, on the other hand, is payable in addition and is not included in the calculation of the cap.
Effective January1, 2022, the Canton of Vaud has modified the calculation of the tax shield, notably by re-including in the reference income the portion of dividends from qualifying holdings that benefit from partial taxation. This change significantly reduces the scope of the tax shield for shareholders holding qualifying holdings (exceeding 10% of the capital). In the face of opposition from business circles, the Grand Council reverted to the regime in effect prior to 2022, but made the entry into force of this reversal contingent on the outcome of the vote on the so-called “12%” initiative, scheduled for September 27, 2026, pursuant to a mechanism whose validity was confirmed by the Federal Supreme Court in its ruling 9C_541/2025.
Since the reform proposed by the Grand Council includes a retroactive clause, it is recommended that taxpayers systematically file appeals against tax assessment decisions in cases where the pre-2021 version of the tax cap might apply. This step prevents the assessments from becoming final and helps protect taxpayers’ rights, depending on the outcome of the vote.
In principle, yes. But in practice, SMEs are often too profitable to trigger the mechanism. For example, if the tax authorities value the shares of a SA/Sàrl at CHF 5 million and its owner receives an annual salary of CHF 200,000, the effective cantonal and municipal tax (approximately CHF 85,000) remains below the theoretical cap of the Geneva tax shield. For the shield to apply, total income would need to be reduced to approximately 1% of the value of the shares (i.e., CHF 50,000), which involves trade-offs that must be carefully analyzed. We are available to assist you with these procedures.
Yes, in principle, the tax cap applies automatically in cantons that have adopted it, provided the legal requirements are met, without any specific action on the part of the taxpayer.
However, it is recommended that a preliminary analysis of the situation be conducted to verify that these conditions are indeed met and to assess the overall impact of the income and asset structure on the tax burden. In addition, it is also recommended to verify that the tax authorities are applying the rules correctly.
