Tax Treaty Relief in Switzerland

Switzerland's ability to attract international capital and headquarters activity rests in large part on one of the world's most extensive bilateral tax-treaty networks. Understanding how that network operates -- both for foreign investors receiving Swiss-source income and for Swiss residents earning abroad -- is essential before structuring any cross-border arrangement.

Switzerland country overview

How many double-taxation treaties does Switzerland have?

Switzerland currently has double-taxation agreements (DTAs) with over 100 countries, according to the State Secretariat for International Finance (SIF), plus eight separate treaties covering inheritance and estate taxes [source-1]. The network spans every major trading and investment partner, from the United States, the United Kingdom, Germany, France, Japan, and India to smaller emerging-market jurisdictions.

Treaties are published by the Federal Tax Administration (ESTV -- Eidgenossische Steuerverwaltung) on the ESTV country-information portal. Each treaty page lists the consolidated text, the applicable withholding rates for dividends (Article 10), interest (Article 11), and royalties (Article 12), and the relevant refund forms for non-residents seeking to reclaim Swiss anticipatory tax. Bilateral treaty rates, which override Switzerland's domestic 35% rate on investment income, are the starting point for any cross-border tax analysis involving a Swiss-source payment.

What is the 35% Verrechnungssteuer and how do treaty residents reclaim it?

The Verrechnungssteuer (anticipatory tax) is a federal withholding tax levied at 35% on Swiss-source dividends, Swiss-bond interest, and Swiss-source lottery winnings. The tax is collected by the Swiss payor -- a Swiss-resident company paying a dividend, or a Swiss-resident bond issuer paying coupon interest -- and remitted directly to the ESTV [source-2].

The 35% rate functions as a security deposit against non-declaration. For Swiss-resident individual recipients, the full 35% is refundable via the cantonal tax return once the income is properly declared. For Swiss-resident corporate recipients, refund is via the corporate tax filing.

For foreign residents in DTA countries, the procedure is different. The treaty typically limits Switzerland's right to tax to a reduced rate -- commonly 15% on portfolio dividends, 5% on qualified direct-investment dividends (often requiring a minimum 10% shareholding for a minimum period), and 0% on interest in many treaties. The treaty-resident investor files a refund claim directly with the ESTV and recovers the excess above the treaty-capped rate. The statutory deadline for filing is three years after the end of the calendar year in which the income fell due [source-2].

Country-specific forms are required and are available on the ESTV country pages. The general form for countries without a dedicated bilateral form is Form 60. The US has dedicated forms: Form 82C (companies), Form 82E (other entities), and Form 82I (individuals) [source-3]. Spain uses Form 90 (valid from June 2025); the United Kingdom, Sweden, and Luxembourg each have forms reflecting their respective bilateral rates, typically 15% retained and 20% refunded on dividends. Processing can take several months; the ESTV processes over 300,000 refund applications annually.

To illustrate the mechanics: a US-resident individual receives CHF 10,000 in dividends from a Swiss company. The Swiss company withholds CHF 3,500 (35%) and remits it to the ESTV. The investor files Form 82I claiming the 1996 US-Switzerland treaty rate of 15% for portfolio shareholders. The ESTV refunds CHF 2,000 (the difference between 35% and 15%), retaining CHF 1,500 as the treaty-capped final Swiss withholding. The investor then reports the gross CHF 10,000 dividend and the CHF 1,500 Swiss withholding on the US federal return, potentially claiming a foreign tax credit for the CHF 1,500.

How does Switzerland provide relief for foreign withholding tax paid by Swiss residents?

Swiss residents who earn dividends or interest from foreign securities commonly have foreign withholding tax deducted at source in the paying country. Relief is available through two channels.

First, where the applicable DTA reduces the foreign country's withholding right below its domestic rate, the Swiss resident may file a refund application in the foreign country to recover the excess. For example, a Swiss-resident investor holding US equities faces a 30% US statutory withholding rate on dividends; the 1996 US-Switzerland treaty reduces this to 15% for portfolio shareholders, so the investor can file Form W-8BEN with the US paying agent to obtain the reduced 15% rate, or can apply for refund of the excess via IRS procedures.

Second, for non-recoverable foreign withholding tax -- the portion retained under the treaty (e.g., the 15% that cannot be recovered from the US) -- Swiss residents may claim a flat-rate tax credit (pauschale Steueranrechnung, DA-1 procedure) against Swiss direct federal tax and cantonal tax. Form DA-1 is submitted together with the annual tax return. The minimum claim threshold is CHF 100 of creditable foreign withholding [source-4]. The flat-rate credit prevents economic double-taxation: income that has borne, say, 15% US withholding does not also bear the full Swiss income-tax rate on the same gross amount.

The DA-1 credit is limited to the amount of Swiss tax actually due on the foreign income -- it cannot create a negative Swiss tax liability. The claim must also be made within three years.

What is the exemption-with-progression method for foreign permanent establishments and real estate?

For income that a DTA assigns to exclusive taxation in the source country -- most importantly, income from a foreign permanent establishment and income from real estate located abroad -- Switzerland applies the exemption-with-progression method [source-5].

Under this method, the foreign income is excluded from the Swiss tax base (no Swiss tax is levied on it), but it is still included in the income figure used to determine the applicable Swiss tax rate on the remaining Swiss-taxable income. Because Swiss cantonal income tax uses progressive rates, including the foreign income in the rate-determination base may increase the effective rate applied to Swiss-taxable income, even though the foreign income itself escapes Swiss tax.

In practical terms: a Swiss-resident individual operates a sole proprietorship with a permanent establishment in Germany. The German PE profits are taxable in Germany under Article 7 of the Swiss-German treaty and are exempt in Switzerland. However, the Swiss tax administration includes those German PE profits when computing the marginal rate that applies to the taxpayer's Swiss income. The net result is a higher Swiss tax rate on Swiss-source income than would apply if the foreign PE did not exist.

The same logic applies to rental income and capital gains on real estate situated abroad. Swiss domestic law (Article 6 of the Federal Act on Direct Federal Tax, DBG) and the applicable DTA together determine whether income from foreign real estate is exempt at the federal and cantonal levels.

What is the residence tie-breaker and how does it apply?

A person can be treated as tax-resident in two countries simultaneously under each country's domestic rules. Swiss treaties resolve this through a sequential tie-breaker test drawn from Article 4 of the OECD Model Convention, applied in the following order [source-5]:

1. Permanent home -- the country where the individual has a permanent home available (not just a hotel or temporary accommodation). If only one country, that country is the treaty residence.
2. Centre of vital interests -- if both countries have a permanent home, the decisive factor is where the individual's personal and economic ties are closer: family, employer, financial accounts, social and cultural connections.
3. Habitual abode -- if the centre of vital interests cannot be determined, the country where the person spends more days.
4. Nationality -- if habitual abode is inconclusive.
5. Mutual agreement -- if nationality also fails to resolve the matter, the competent authorities of the two countries negotiate through the Mutual Agreement Procedure (MAP).

For Swiss-resident individuals with close ties to a second country -- frequent cross-border workers, part-year residents, individuals with property in multiple countries -- the tie-breaker analysis can be fact-intensive. The "centre of vital interests" step in particular requires a comprehensive examination of where family members live, where employment decisions are made, and where the primary financial assets are held.

What are the key provisions of the Switzerland-US treaty and how does FATCA interact?

The Convention between Switzerland and the United States for the Avoidance of Double Taxation (signed 1996, amended by 2009 Protocol) is one of the most favourable bilateral cross-Atlantic tax frameworks available. Key rates and provisions [source-3]:

• Dividends (Article 10): 15% for portfolio shareholders; 5% for direct-investment shareholders holding at least 10% of the voting stock of the paying company; relief also available for qualifying US pension funds and retirement arrangements (including IRAs and 401(k) plans) under a March 2025 IRS confirmation (Announcement 2025-8) that qualifying retirement arrangements may qualify for 0% withholding under Article 10(3).
• Interest (Article 11): 0% withholding -- the US does not tax Swiss-source interest paid to US residents, and Switzerland's domestic interest withholding (Verrechnungssteuer) is fully refundable to US residents under the treaty.
• Royalties (Article 12): 0% -- one of the broadest zero-royalty regimes in the Swiss treaty network.
• Capital gains (Article 13): Gains on movable property taxable only in the country of residence; real-estate gains taxable in the country where the property is situated.
• Saving Clause (Article 1(3)): The United States may tax its citizens and residents as if the treaty did not exist. A US citizen living in Switzerland remains subject to US federal income tax on worldwide income regardless of treaty benefits. Treaty benefits still apply for reduced Swiss withholding on Swiss-source income payments.
• Tie-breaker (Article 4): The four-step sequence described above -- permanent home, centre of vital interests, habitual abode, nationality.

Regarding FATCA and information exchange: Switzerland originally signed a Model 2 FATCA Intergovernmental Agreement (IGA) on February 14, 2013, which came into force on June 2, 2014. Under Model 2, Swiss financial institutions disclosed US-account data directly to the IRS with US-client consent. On June 27, 2024, Switzerland and the United States signed a replacement Model 1 IGA, which introduces automatic and reciprocal exchange of financial-account information between the ESTV and the IRS [source-6]. The Model 1 transition is scheduled for implementation from January 1, 2028; transitional provisions ensure continuity. The 2009 Protocol also expanded information-exchange provisions between the two countries.

The combined effect for US persons with Swiss financial accounts: Swiss banks and brokers are required to report account balances, interest, dividends, and proceeds to ESTV (and, under Model 2, directly to the IRS). US persons must also separately report Swiss accounts on the FBAR (FinCEN Form 114) if aggregate balances exceed USD 10,000 at any point during the year, and on Form 8938 (FATCA filing) if applicable thresholds are met.

The diagram below traces the refund flow for a treaty-resident investor receiving a Swiss dividend: 35 percent is withheld at source, and the ESTV refunds the portion above the treaty-capped rate once the claim form is filed.

Cross-border arrangements involving Swiss-source income or Swiss residents earning abroad require careful analysis of the applicable treaty, the correct refund procedure, and the interaction with Swiss domestic law. A qualified tax professional with knowledge of both the Swiss Federal Tax Administration procedures and the relevant foreign jurisdiction's rules is the appropriate starting point for any specific situation.

Find a qualified tax professional on TaxPros Rated