Quick Take: Swiss residents are subject to unlimited tax liability, meaning all worldwide income and assets, including foreign bank accounts and the income they generate, are taxable in Switzerland.

Tax Implications of Foreign Bank Accounts for Swiss Residents

Owning foreign bank accounts as a Swiss resident brings specific reporting and tax responsibilities. Switzerland adheres to double taxation treaties, often aligned with the OECD template, which govern how liquid assets and the income they generate are taxed.

Liquid Assets and Their Tax Treatment

Liquid assets are considered taxable in your country of residence. In Switzerland, liquid assets include:

• Cash and cash equivalents
• Bank account balances
• Stocks and bonds
• Mutual funds
• Cryptocurrencies

These assets are subject to a cantonal-level wealth tax. While this tax is generally low, it varies significantly between cantons. The wealth tax applies to the total value of your liquid assets and is calculated annually. The tax burden is typically more influenced by the income these assets generate rather than their principal value.

Income from Liquid Assets

Income derived from liquid assets is taxed together with ordinary income and includes:

• Dividends: Often subject to a withholding tax of 15% in the country of origin.
• Interest: Typically taxed at a 5% withholding rate in the country of origin.
• Capital gains: Not taxable in Switzerland.

As a Swiss resident you have an “unlimited tax liability” in Switzerland. The Term refers to the obligation of individuals or entities to pay taxes on their worldwide income and assets. As a Swiss resident you can reclaim foreign taxes paid (e.g., the 5%-15% withholding) when filing your tax returns.

Deductible Wealth Management Costs

Swiss tax law allows deductions for specific wealth management costs directly tied to the administration of liquid assets. These include:

• Fees for professional portfolio management
• Custody fees for securities (e.g., depot fees)
• Costs for preparing tax-specific reports

Non-deductible costs include expenses related to acquiring, restructuring, or growing assets, as well as financial or legal advisory fees. Some cantons simplify deductions by allowing a flat-rate deduction of 1-3‰ of managed securities, eliminating the need for detailed cost documentation.

Feel free to contact us with any tax questions or schedule a consultation. Schedule an Appointment – Call +41 44 797 62 68 – info@aconta.ch