1. Facts
Mrs. Meier lives with her husband and three children in a single-family home in the canton of Zurich. In addition, the family owns a vacation apartment in Graubünden and recently purchased a vacation home in the south of France. To finance these purchases, the properties in Switzerland were secured with mortgages (detached house: CHF 1,000,000; Graubünden apartment: CHF 500,000; Glarus apartment: CHF 300,000; interest expense for the year in question: CHF 54,000). Shortly after purchasing the two additional properties, one of the three children moves out, leaving his room “empty.” The apartment in Graubünden is used only during the months of June/July and February. The imputed rental value of the house in Zurich is set at CHF 50,000 annually (property tax value CHF 1,400,000) and the properties in Graubünden and France at CHF 20,000 and CHF 10,000 per year, respectively (property tax value CHF 1,000,000 and CHF 500,000).
Mr. Meier still owns a rented apartment in the canton of Glarus from a previous inheritance (annual rent CHF 20,000; tax value CHF 800,000). Since the electrical and water lines were renovated, the maintenance costs for the year in question amount to CHF 30,000.
The Meiers’ movable assets amount to CHF 200,000.
Questions
- How do the properties affect tax liability, and how are the properties (in the canton of Zurich) treated under income tax law (assuming a flat-rate property maintenance cost of 20%)?
- Mrs. Meier believes that the imputed rental values of her properties have been set far too high. She comes to you and wants to understand how these are determined. In particular, she does not understand why, in the canton of Graubünden, a different imputed rental value is used for direct federal tax than for cantonal and municipal tax.
- How does the fact that a children’s room in the primary residence in the Canton of Zurich is “empty” affect the calculation? What about the 9 months of the year during which the vacation home in Graubünden is not used? What would the situation be if the Meier family no longer used the vacation home and tried to sell it?
- Would the assessment (Question 3) change if all three children had moved out and the Meier couple were living alone in the house on a small pension (with no other real estate, income, or assets)?
1. Facts
Mr. and Mrs. Anton are taxpayers in the Canton of Zurich. Mr. Anton is the sole shareholder and a member of the board of directors of Anton AG, which has long leased a property from an (independent) Vermiet AG. Anton AG subleases the majority of the premises to third parties at a rent of approximately CHF 155,000 per year, which roughly corresponds to the rent paid to Vermiet AG, so that there is hardly any profit from the sublease. The sublease agreement is open-ended, and only the subtenants have access to the premises.
Mrs. Anton (privately) now purchases the property and subleases the premises to Anton AG for approximately CHF 50,000 annually. The sublease agreements remain unchanged. As a result, the company generates an annual profit of approximately CHF 105,000 from the subleases. Since the company incurred significant losses in previous years, it uses this income to cover losses and repay the existing shareholder loan.
Questions
- How should the chosen legal structure be assessed from a tax law perspective?
- What did the court consider with regard to the elements of tax evasion? Are these elements satisfied?
- Variation: How should the facts be assessed under tax law if the property belonged to Anton AG and an apartment in it were rented to an employee at below-market rates?
- Variation: How would the facts be assessed under tax law if Ms. Anton owned an apartment in Thurgau that she made available to her sister for a nominal CHF 200 per month?
1. Facts
Classify the following expenses into one of the categories. The work is being carried out on a property in Zurich.
Categories
- Value-adding / Non-deductible (but to be considered as investment costs)
- Value-preserving / deductible
- Mixed / Partially deductible, partially non-deductible
- Living expenses / non-deductible

1. Facts
Mr. Müller, owner of an apartment building in Zurich, carried out a comprehensive renovation of his property in 2022. The building is over 140 years old, and the renovation included, among other things:
- Renovation of the facade, including historic windows
- Installation of solar panels to improve energy efficiency
- Installation of a geothermal probe
- Replacement of all electrical and water lines
The total cost of the renovation was CHF 1,500,000. The building is listed in the Federal Inventory of Swiss Heritage Sites of National Importance (ISOS). In light of the upcoming renovation, Mr. Müller contacted the tax authority and sought their recommendation—more specifically, a specialized assessment.
The cantonal tax authority classified all costs as value-adding investment costs in accordance with existing practice regarding economic new construction, which would mean that Mr. Müller could not deduct the costs from his taxable income. Mr. Müller was of the opinion that at least part of the costs were value-preserving and should therefore be tax-deductible as maintenance costs, contrary to the tax authority’s view.
Questions
- What is the current status of the tax law assessment of major renovation work?
- What argument could Mr. Müller raise given that his house is listed in the ISOS?
- The renovation costs exceed Mr. Müller’s income in 2022. Can these be deducted in the following year?
- What procedural advice should be given to Mr. Müller regarding the claim for the renovation costs as maintenance expenses?