Field help: (2021) Renewal of windows / external doors

As part of the windows and / or external doors renovation, the first-time installation of external doors, windows and French doors, including external sun protection devices, is eligible for tax incentives.

Renewal and replacement are eligible, provided that the minimum requirements for energy efficiency are met. This applies to the following areas:

• windows, balcony and patio doors with multi-pane insulating glazing
• low-barrier or burglar-resistant windows, balcony- and terrace doors
• strengthening of windows and box-type windows as well as windows with special glazing
• roof windows
• replacement of windows on historical buildings or buildings worthy of preservation
• strengthening of windows on historical buildings or buildings worthy of preservation
• external doors of heated rooms

As a rule, the eligible expenses can be taken from the statement of the specialist company.

The tax reduction cannot be claimed if the expenses have already been taken into account as business expenses, income-related expenses (e.g. in the case of double household maintenance), special expenses or exceptional costs.