Which measures for energy-efficient building renovation are eligible for tax incentives?

The climate protection programme, with its expanded funding programmes, ensures that as many property owners as possible can invest in modernising their homes when needed. The following measures for energy-efficient building renovation are supported under the climate protection programme:

• Wall insulation
• Roof insulation
• Storey ceiling insulation
• Renewal of windows or external doors
• Renewal or installation of a ventilation system
• Renewal of the heating system
• Installation of digital systems for optimising energy operation and consumption
• Optimisation of existing heating systems.

In addition, energy-related construction supervision and specialist planning are eligible for tax incentives.

Technical minimum requirements apply to these measures, which must be met for funding. For this reason, the tax reduction under § 35c can only be claimed if a corresponding certificate is submitted with the tax return. The certificate can be confirmed by a specialist company or an energy consultant (a person authorised to issue certificates under § 21 Energy Saving Ordinance).

Admittedly, when thinking of energy measures, one primarily considers insulation, the renewal of windows and external doors, or the renewal of the heating system. It is somewhat less known that since 2021, "summer heat protection" is also eligible for funding. This is somewhat hidden in Appendix 4a to the ESanMV.

It specifically states: "Funding is provided for the replacement or initial installation of external sun protection systems with optimised daylight provision, for example through light guidance systems or radiation-dependent control. The requirements of DIN 4108-2:2013-02 for minimum summer heat protection must be met."

The "Second Ordinance Amending the Energy-Efficient Renovation Measures Ordinance" has transferred changes to the "Federal Funding for Efficient Buildings (BEG) - Individual Measures" to ensure the technical consistency of the funding. This includes the removal of funding for gas-powered heat pumps, gas condensing technology, and gas hybrid heating systems, as well as adjustments to building and district heating network requirements. For biomass heating systems, the BEG changes to room heating efficiency and particulate matter are implemented.

This regulation applies to measures from 31 December 2022.

(2023): Which measures for energy-efficient building renovation are eligible for tax incentives?

What is the funding amount for energy-efficient building renovation?

The funding can be claimed for several individual measures, which can be carried out independently of each other.

For individual measures related to energy-efficient building renovation, 20% of the expenses (max. 40,000 Euro per residential property) are eligible.

The funding is spread over three years. In the calendar year of completion of the energy measure and in the following calendar year, 7% of the expenses (max. 14,000 Euro annually) can be deducted from the tax liability, and in the third year, a further 6% of the expenses (max. 12,000 Euro) can be deducted.

For energy-related construction supervision and specialist planning, 50% of the costs incurred are deductible. You can find professionally qualified energy consultants for the planning and supervision of energy renovation projects throughout Germany at www.energie-effizienz-experten.de.

The funding can be claimed by a large number of homeowners. The tax incentive came into effect on 1 January 2020. The deduction is made directly from the individual tax liability.

(2023): What is the funding amount for energy-efficient building renovation?

What conditions must be met to claim the tax reduction?

You can benefit from the tax incentives for energy efficiency measures under section 35c of the Income Tax Act if the property is used for your own residential purposes or provided free of charge to other persons.

To receive the tax incentives, the following conditions must also be met:

• The property must be located in Germany or the EU/EEA.
• At the start of the measures, the flat or residential building must be at least 10 years old.
• A certificate under section 21 of the Energy Saving Ordinance from a specialist company or energy consultant must be available.

The certificate is generally issued for the owner(s) of the residential building/flat. You must also have received an invoice showing the eligible energy efficiency measures, the work carried out by the specialist company, and the address of the property in question.

The tax reduction depends on the payment being made to the account of the service provider. No tax reduction is granted for cash payments, cash deposits, partial cash payments, or cash cheques.

(2023): What conditions must be met to claim the tax reduction?

Which companies can issue a professional certificate?

Any specialist company that meets the requirements of Section 2 of the "Energetische Sanierungsmaßnahmen-Verordnung ESanMV".

All companies operating in the following trades are considered "specialist companies":

• Masonry and concrete work,
• Plastering work,
• Painting and varnishing work,
• Carpentry and joinery work,
• Thermal, cold, and sound insulation work,
• Stonemasonry and stone carving work,
• Well construction work,
• Roofing work,
• Plumbing work,
• Glazing work,
• Installation and heating work,
• Refrigeration system construction,
• Electrical engineering and installation,
• Metal construction,
• Stove and heating construction,
• Shutter and sun protection technology,
• Chimney sweeping, tiling, slab and mosaic laying work,
• Concrete stone and terrazzo production,
• Window installation (with appropriate specialisation).

Until 2021: Any person authorised to issue energy performance certificates under Section 21 EnEV. This group includes:

Energy consultants, i.e. energy consultants approved by BAFA for the "Energy Consulting for Residential Buildings" funding programme.

Energy efficiency experts listed for the KfW funding programme "Energy-Efficient Construction and Renovation – Residential Buildings" (KfW programmes 151/152/153 and 430).

All other persons with authorisation to issue under Section 21 EnEV (e.g. due to a university degree qualifying for a profession mentioned in Section 21 EnEV in conjunction with further training in energy-saving construction).

The prerequisite is that a person from the above-mentioned group was commissioned by the builder or the executing specialist company with the planning support or supervision. The energy consultant's certificate must state the client. The existence of the authorisation to issue under Section 21 EnEV must be confirmed.

From 2022: Persons with authorisation to issue under Section 88 of the Building Energy Act (GEG), who have been commissioned by the company or the taxpayer with the planning support or supervision of the energy measure.

Note: The regulation amending the Energetische Sanierungsmaßnahmen-Verordnung of 14 June 2021, BGBl. I p. 1780, adapted the ESanMV to the new Federal Funding for Efficient Buildings.

The Federal Ministry of Finance describes in detail the requirements for issuing such certificates in a decree (BMF letter of 31.3.2020, IV C 1 - S 2296-c/20/10003).

The "Second Regulation Amending the Energetische Sanierungsmaßnahmen-Verordnung" has transferred changes to the "Federal Funding for Efficient Buildings (BEG) - Individual Measures" to ensure the technical alignment of the funding. This includes the removal of funding for gas-powered heat pumps, gas condensing technology, and gas hybrid heating systems, as well as adjustments to building and district heating network requirements. For biomass heating systems, the BEG changes to room heating efficiency and particulate matter are implemented.

This regulation applies to measures from 31 December 2022.

The costs for the energy consultant are to be considered at 50 percent of the expenses in the year the measure is completed, deviating from the general regulation, and not spread over three years. The costs for the energy consultant as well as the costs for issuing the certificate under Section 35c paragraph 1 EStG are each - like the expenses for the energy measure itself - covered by the maximum tax reduction amount of 40,000 Euro (BMF 14.1.2021, IV C 1 - S 2296-c/20/10004 :00, BStBl 2021 I p. 103 para. 50).

(2023): Which companies can issue a professional certificate?

What alternatives are there to tax incentives?

As an alternative to tax incentives, public building funding programmes can be used. These include, for example, low-interest loans or tax-free grants offered by the Kreditanstalt für Wiederaufbau (KfW Bank), the Federal Office for Economic Affairs and Export Control (BAFA), and state-owned development banks.

If you make use of one of these funding programmes, simultaneous tax incentives for the same energy renovation measure are not possible.

It is harmless if you have received grants solely for energy consulting. In this case, no tax reduction can be claimed for the costs of the energy consulting. However, for the energy measures carried out as a result of the energy consulting, for which no public funding was received, the tax reduction can be applied for.

(2023): What alternatives are there to tax incentives?

What applies to homeowners' associations?

If energy-saving measures are carried out on a building consisting of several owner-occupied flats, a certificate must generally be issued for each individual flat. It is acceptable for the specialist company to issue a collective certificate for simplification purposes if the renovation expenses relate to the entire building or if the expenses attributable to the private property of individual flats can be clearly and unambiguously allocated to the individual flats.

If the owners' association has appointed a manager to represent their interests, the manager should be addressed as the client. In these cases, it is sufficient for the manager to apportion the expenses attributable to the co-ownership according to the ratio of the co-ownership share and inform the individual flat owner.

For this purpose, the manager creates a number of copies of the certificate from the specialist company corresponding to the number of beneficiaries, on which they note the amount of the expenses attributable to the respective beneficiary for the entire building and allocate the expenses attributable to the private property of individual flats to the specific flat owners.

(2023): What applies to homeowners' associations?