What is Real Estate Gains Tax?
Real estate gains tax levied on the profit made from selling a property in Switzerland. The taxable gain is the difference between the selling price and the original purchase price, after deducting eligible expenses. In Basel-Stadt, real estate gains tax applies to both privately held assets as well as business assets.
How Real Estate Gains Tax Works in Basel-Stadt
In Basel-Stadt, the real estate gains tax is progressively reduced the longer you hold onto the property before selling. The tax rate drops over time, rewarding long-term ownership.
Tax Rates for Owner-Occupied Properties
- 0–5 years of ownership: 30%
- 6–25 years: tax rate reduced by 0.9% per year
- 25 years or longer: 12%
Tax Rates for Non-Owner-Occupied Properties
- 0–5 years of ownership: 60%
- 6–15 years: tax rate reduced by 3.9% per year
- 16–25 years: further reduction of 0.9% per year
- 25 years or longer: 12%
For non-owner-occupied properties, investments that add value to the property are also factored in. The tax rate is adjusted based on the ratio of these investments to the sale price, using a factor of 1.5. However, even with these adjustments, the tax rate will not drop below 30%.
When Does Real Estate Gains Tax Apply in Basel-Stadt?
The tax is triggered by any transaction involving a transfer of ownership for payment, or legal arrangements equivalent to a sale — as long as a profit is made. These include:
- Sale of a property
- Swapping a property with another owner
- Exercise of pre-emption, purchase, or repurchase rights
- Sale of independent and permanent rights (such as building rights)
- Sale of shares (such as company stocks) that primarily represent real estate ownership
How the Real Estate Gains Tax Is Calculated in Basel-Stadt
Taxable Real Estate Gain
The taxable real estate gain is the difference between the property's original purchase price (plus allowable expenses) and the selling price, adjusted according to the length of ownership.
Deductible Value-Enhancing Expenses
You can deduct value-enhancing investments from the taxable gain. These are construction-related expenditures that permanently increase the property's value.
However, regular maintenance work — such as normal façade renovations, new wallpaper, painting, roof repairs, or replacing broken appliances — does not qualify as value-enhancing and cannot be deducted.
Deductible Selling Costs
Expenses directly related to the sale can also be deducted. These include:
- Property transfer taxes
- Land registry fees
- Real estate agent commissions
- Notary fees
- Property appraisal costs
- Advertising expenses for selling the property
Deferring Real Estate Gains Tax in Basel-Stadt
Under certain circumstances, you can defer the real estate gains tax in Basel-Stadt, including:
- Selling your primary residence and purchasing a replacement property of equal or greater value
- Inheritance transactions (inheritance, division of an estate, or legacies)
- Property settlements between spouses (e.g., divorce settlements)
- Land reallocation for the purpose of land consolidation
- Gifts
- Corporate restructurings in accordance with the Swiss Merger Act
How Basel-Stadt Applies the Real Estate Gains Tax – The Monistic System
Basel-Stadt uses the monistic system for taxing profits from the sale of real estate. Under this system, profits from the sale of both private and business-owned properties are subject solely to real estate gains tax.
Sources and Useful Links
You can find the official legal text here: SG 640.100 / Law on Direct Taxes (Tax Law, StG): https://www.gesetzessammlung.bs.ch/app/de/texts_of_law/640.100
All information provided in this article is non-binding and for informational purposes only. For personal tax advice, please contact your local tax office, the cantonal tax authority of Basel-Stadt, or a qualified tax advisor.
Valuing or Selling Your Property in Basel-Stadt
Thinking about selling your property in Basel-Stadt? Or would you like to know the current market value of your house, apartment, or land? Use our free online valuation tool to get an initial estimate within just a few minutes.
For a personal, on-site evaluation, our local real estate agents are here to help. They will gladly answer your questions and provide comprehensive support throughout your property sale.
Rely on our experience and expertise to achieve the best possible sale price. We look forward to assisting you every step of the way with professional, personalized service.
