Field help:
(2019)
Income from the rental of houses, apartments and other buildings
Tick this box if you have income from a developed property, for example, a rented house or a rented apartment.
If you live in your own house or apartment, you only have to provide information if you rent out individual rooms.
Important: Do not fill in "Form V" for buildings and parts of buildings used exclusively for your own residential or commercial / professional purposes.