Anyone living in the Netherlands and owning real estate in countries such as France, Turkey, Morocco, Suriname, or any other foreign country, must declare this on their Dutch tax return. By correctly completing the declaration, you can benefit from deductions in the Netherlands due to the taxes you already pay abroad. Assets like a residence, vacation home, plot of land, building, garage, or other real estate in countries like Spain, Greece, Germany, Belgium, Indonesia, and any other foreign country fall under the Dutch box 3. The value of these assets must be reported in the annual income tax declaration in the Netherlands. This refers to the market value of the real estate when it is unoccupied.