Swiss Inheritance Tax: Canton-by-Canton Guide

Switzerland levies no inheritance tax at the federal level, leaving succession taxation entirely to the cantons. This decentralised approach creates a patchwork of regimes ranging from complete exemption to rates exceeding 40 per cent, depending on the canton of the deceased’s last domicile and the relationship between the deceased and the beneficiary.

Federal vs Cantonal Authority

The Swiss Confederation does not impose any inheritance, estate, or gift tax. All succession taxes are levied exclusively at the cantonal (and in some cases communal) level. The relevant canton is determined by the last domicile of the deceased — not by the location of the assets, with the sole exception of real property, which is taxed by the canton in which it is situated.

This means that a resident of Canton Zug who owns property in Canton Bern may face inheritance tax in Bern on that property, even if Zug itself imposes no tax on the remaining estate.

Spousal and Direct Descendant Exemptions

A near-universal feature of Swiss cantonal inheritance taxes is the exemption or preferential treatment of transfers to spouses (and registered partners) and direct descendants (children and grandchildren).

Cantons Fully Exempting Spouses and Descendants

The following cantons impose no inheritance tax on transfers to surviving spouses and direct descendants:

• Schwyz — No inheritance or gift tax whatsoever (for any beneficiary)
• Obwalden — No inheritance or gift tax whatsoever
• Zug — Exempts spouses and direct descendants; other beneficiaries taxed
• Lucerne — Exempts spouses and direct descendants
• Nidwalden — Exempts spouses and direct descendants
• Zurich — Exempts spouses and direct descendants
• Aargau — Exempts spouses and direct descendants

Most remaining cantons either fully exempt or apply very low rates (typically 1–5 per cent) to transfers within the immediate family.

Cantons with Broader Exemptions

Canton Schwyz is uniquely attractive from a succession planning perspective: it levies no inheritance or gift tax at all, regardless of the relationship between the deceased and the beneficiary. This makes Schwyz an important comparator for high-net-worth individuals evaluating their cantonal domicile. For a detailed comparison, see our Zug vs Schwyz tax analysis.

Tax Rates for Non-Family Beneficiaries

The significant tax exposure in Swiss inheritance arises when assets pass to beneficiaries outside the immediate family — siblings, nieces, nephews, unrelated individuals, and non-exempt entities.

Indicative Rates by Relationship and Canton

Rates are typically progressive, increasing with the size of the inheritance. Some cantons apply flat rates for certain relationship categories while using progressive scales for others.

Gift Tax

Most cantons that levy an inheritance tax also impose a corresponding gift tax (Schenkungssteuer) at similar or identical rates. This prevents the avoidance of inheritance tax through lifetime transfers. Key points include:

• Aggregation rules: Some cantons aggregate gifts made within a certain period (typically 5–10 years) before death with the estate for tax calculation purposes
• Annual exemptions: Certain cantons provide small annual gift tax exemptions (e.g., CHF 5,000–10,000)
• Spousal and descendant exemptions: Generally mirror the inheritance tax exemptions

In cantons with no inheritance tax (Schwyz, Obwalden), gift tax is similarly absent.

Valuation of Estate Assets

The valuation of estate assets is governed by cantonal law and typically follows market value principles:

Real Property

Real estate is valued at its fair market value at the date of death. Cantonal tax authorities may use official valuations (amtliche Schätzung), which often lag market values, though they retain the right to adjust to current market levels.

Securities and Financial Assets

Listed securities are valued at the stock exchange price on the date of death. Unlisted shares are valued using the Federal Tax Administration’s guidelines, which typically employ a weighted combination of earnings value and net asset value.

Business Assets

Closely held businesses present the most complex valuation challenges. The standard Swiss methodology combines:

• Earnings value (capitalised average of past and projected earnings) — weighted twice
• Net asset value (adjusted book value of assets minus liabilities) — weighted once

This “practitioner’s formula” (Praktikermethode) yields a weighted average that may diverge significantly from what the business might fetch in an arm’s-length transaction.

Art, Collectibles, and Tangible Assets

Valuable tangible personal property — art, jewellery, vehicles, collections — must be declared at fair market value. Professional appraisals may be required for high-value items.

Trusts and Foundations

Switzerland’s treatment of trusts in the inheritance context requires careful consideration:

Foreign Trusts

Switzerland does not have domestic trust legislation (though the Hague Trust Convention is recognised). Assets settled into a foreign trust by a Swiss-resident settlor may still be subject to inheritance tax upon the settlor’s death if:

• The trust is revocable
• The settlor retained significant control or benefit
• The transfer to the trust is deemed a gift within the aggregation period

Swiss Foundations

Assets transferred to a Swiss foundation (Stiftung) during the founder’s lifetime are generally subject to gift tax. Upon the founder’s death, assets already within the foundation are no longer part of the estate. However, anti-avoidance rules may apply if the foundation primarily benefits the founder’s family.

Cross-Border Estates

Switzerland’s double taxation treaties rarely cover inheritance taxes specifically. A limited number of treaties address succession taxation:

• Switzerland–United Kingdom — Inheritance tax treaty in force
• Switzerland–United States — Estate tax treaty in force
• Switzerland–Austria, Germany, Finland, Netherlands, Sweden — Various succession tax treaties

In the absence of a treaty, double taxation relief depends on unilateral cantonal provisions, which vary significantly. Some cantons provide credit for foreign inheritance taxes paid; others do not.

Non-Resident Decedents with Swiss Assets

Non-residents who own Swiss real property are subject to inheritance tax in the canton where the property is located. Other Swiss-situated assets of non-resident decedents (bank accounts, securities) are generally not subject to Swiss inheritance tax unless the deceased was domiciled in Switzerland.

Planning Strategies

Domicile Selection

For high-net-worth individuals, the choice of cantonal domicile is the single most impactful inheritance tax planning decision. Moving to a canton with favourable succession taxation can eliminate or dramatically reduce the tax burden on the estate.

Key considerations include:

1. Schwyz and Obwalden: No inheritance tax for any beneficiary category
2. Zug: No inheritance tax for spouses and descendants; moderate rates for others
3. Timing: Most cantons require genuine domicile, not merely a registered address

Lifetime Gifting

In cantons with gift tax, lifetime transfers may still be advantageous if:

• The gifts fall below annual exemption thresholds
• Progressive rate schedules mean smaller, phased transfers attract lower marginal rates
• The gifts are made outside the aggregation look-back period

Pension and Insurance Structuring

Life insurance proceeds paid directly to named beneficiaries may receive preferential tax treatment in some cantons, falling outside the estate for inheritance tax purposes. Pillar 3a and 3b pension assets also receive specific treatment that may differ from ordinary estate assets.

Corporate Succession

Business owners should consider:

• Share transfers during lifetime: Gradual transfer of shares to the next generation can utilise annual exemptions and lower progressive rates
• Holding structures: Interposing a holding company may facilitate succession planning, though substance and anti-avoidance rules apply
• Shareholders’ agreements: Buy-sell provisions can provide liquidity for inheritance tax obligations

For more on corporate tax structures that facilitate succession planning, see our Swiss corporate tax guide.

Reporting and Compliance

Upon a death in Switzerland, the executor or heirs must file an estate declaration (Erbschaftssteuererklärung) with the cantonal tax authority. This declaration must list all assets and liabilities of the deceased and identify all beneficiaries. The cantonal tax authority then assesses the inheritance tax based on each beneficiary’s share and their relationship to the deceased.

The filing deadline varies by canton but is typically 3–6 months from the date of death or the grant of probate. Late filing may result in penalties and interest charges.

Donovan Vanderbilt is a contributing editor at ZUG ECONOMY. This article is informational and does not constitute investment, legal, or tax advice.