How do I have to declare securities and accounts?
The correct declaration of securities and accounts is a central component of the Swiss tax return. This guide systematically explains what you must declare, how to proceed, and what advantages a correct declaration offers.
What Must You Declare in the Securities Register?
All Accounts and Balances
Bank Accounts:
- Savings, private, salary accounts at every bank
- Accounts with zero balance: Even empty accounts must be declared
- Rental deposit accounts: Often forgotten, but mandatory to declare
- Smartphone banking accounts: Digital banks like Revolut, N26
- Children's accounts: As long as children don't file their own tax return
- Foreign accounts: All accounts abroad, even with small balances
- Crypto assets: Digital currencies and tokens
All Securities
Financial Instruments:
- Stocks: Swiss and foreign securities
- Bonds: Government bonds, corporate bonds
- Funds: Investment funds, ETFs, hedge funds
- Structured products: Certificates, options
- LLC shares: Participations in companies
- Life insurance: Surrender value policies (not Pillar 3a)
What is NOT Subject to Declaration?
- Pillar 3a accounts: Tax-exempt until withdrawal
- Vested benefits accounts: Tax-free until maturity
- Pension fund assets: Occupational pension
- Household goods: Furniture, electrical appliances, personal items
Valuation and Reference Date
Reference Date for Valuation
All assets are valued as of December 31 of the tax year:
- Listed securities: Closing price of the last trading day in December
- Bank accounts: Account balance on December 31
- Unlisted securities: Market value according to tax authority estimate
Foreign Assets
- Conversion to Swiss francs mandatory
- Wealth: Use year-end exchange rate
- Income: Use annual average exchange rate
- Exchange rate list of the Federal Tax Administration at ictax.ch
Practical Procedure for Declaration
The Easy Way: Tax Statement
For securities held with Swiss banks:
- Request tax statement from your bank
- Transfer total to one line of the securities register
- Attach complete tax statement (all pages)
- No need to record individual positions
Individual Declaration
If no tax statement available:
- List each position individually
- State tax value as of Dec. 31
- Record all income for the year
- Collect receipts: Account statements, dividend statements
Declaring Income Correctly
Interest Income
- Account interest: Even for minimal amounts
- Bond interest: Current interest and accrued
- With withholding tax: Use separate column
- Without withholding tax: Use different column
Dividends and Distributions
- Gross dividends: Before withholding tax deduction
- Fund distributions: All income and capital gains
- Foreign dividends: With any withholding tax
Capital Gains
- Private investors: Capital gains are tax-free
- Professional trading: All gains taxable
- Observe criteria for professional trading
Reclaiming Withholding Tax
Requirements
- Residence in Switzerland at the time of maturity
- Correct declaration of all assets and income
- Proof of beneficial ownership of assets
Refund Procedure
- Automatic offset with tax bill
- Deadline: 3 years after the end of the calendar year of maturity
- If refused: Irrevocable forfeiture of claim
Important: This deadline cannot be extended or interrupted. An extension for the tax return does not apply to the refund claim!
Wealth Tax: What You Need to Know
Taxable Assets
- Account balances: All types, including abroad
- Securities: At market values as of Dec. 31
- Life insurance: Surrender values
- Vehicles: According to market value
- Art objects: If of considerable value
Wealth Exemptions (Selection of Major Cantons)
- Canton of Zurich: CHF 80,000 (single) / CHF 159,000 (married)
- Canton of Bern: CHF 100,000 general exemption
- Canton of Zug: Taxation from very low amounts
- Canton of Valais: CHF 30,000 (single) / CHF 60,000 (married)
Tax Rates
Wealth tax amounts to 1-5 per thousand of taxable wealth depending on the canton and is progressively structured.
Avoiding Common Mistakes
Completeness
- ☑ Declare all accounts: Even with minimal balances
- ☑ Foreign assets: Don't forget
- ☑ Children's assets: With joint tax return
Valuation
- ☑ Use correct reference date (Dec. 31)
- ☑ Correct conversion of foreign currencies
- ☑ Keep tax statement current
Income
- ☑ Declare gross income (before tax deduction)
- ☑ Use correct columns (with/without withholding tax)
- ☑ Note due date, not payment date
Special Situations
Inheritances
- During the year: Proportional declaration
- Estate community: Divide according to inheritance quotas
- Withholding tax: Separate treatment before/after inheritance
- Until date of death: Refund in name of deceased
- After date of death: Each heir claims individually for their share
Foreign Withholding Tax
- Utilize double taxation agreements
- Request refund in source state
- Crediting possible in Switzerland
- Form DA-1: Required for crediting
Qualified Participations
- From 10% participation: Reduced taxation
- Federal/cantonal level: Different reliefs
- Liquidation proceeds: Special regulations
Practical Tips
Documentation
- Keep receipts: At least 10 years
- Systematic filing: By year and category
- Digital copies: Recommended as backup
Tax Optimization
- Timing: Plan purchases and sales optimally for taxes
- Choice of residence: Consider cantonal differences
- Use pension: Maximize Pillar 3a
Professional Help
- For complex situations: Consult tax advisor
- Borderline cases: Contact tax office
- Legal certainty: Ask when uncertain
Important Deadlines and Dates
Tax Return
- Filing deadline: Usually March 31 of following year
- Extension: Often until end of September upon request
- Electronic filing: Partially longer deadlines
Withholding Tax
- Application: Earliest on January 1 after maturity
- Limitation: 3 years after the end of the calendar year of maturity
- Automatic offset: With tax bill
- No interruption: Deadline cannot be extended
Digital Tools
Online Tools
- Cantonal tax programs: Usually available free of charge
- Tax statement upload: Direct import possible
- Calculation tools: For tax comparisons
Mobile Apps
- Banking apps: For current account balances
- Portfolio trackers: For securities overview
- Tax apps: For on the go
Control and Evidence
Automatic Exchange of Information (AEOI)
Since 2017, Swiss tax authorities automatically receive information about:
- Foreign bank accounts of Swiss taxpayers
- Life insurance with foreign providers
- Interest income and account balances
Consequences of Non-Declaration
- Back tax procedures: With interest and fines
- Criminal proceedings: For willful tax evasion
- Loss of withholding tax: No refund possible anymore (forfeiture)
Conclusion
The correct declaration of securities and accounts is essential for a legally compliant tax return. Through complete and correct information, you not only secure the refund of withholding tax but also avoid costly back tax procedures.
Most Important Points:
- Completeness is crucial: Declare all accounts and securities
- Note December 31 reference date
- State gross income (before tax deduction)
- Observe 3-year deadline for withholding tax refund
- Use bank's tax statement for easier declaration
When uncertain, don't hesitate to seek professional help or contact your cantonal tax office directly.
Remember: Completeness and correctness pay off – both in terms of taxes and legally.

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