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Program discontinued

KfW 40 Plus: discontinued — this applies in 2026 instead

The previous funding level "Efficiency House 40 Plus" was discontinued. What it was and which programs took its place in 2026 — honestly classified, without outdated conditions.

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Direct answer

Is there KfW 40 Plus anymore?

No. The KfW-40-Plus subsidy is discontinued — the previous new construction subsidy with the Plus level was stopped in 2021/2022 and is no longer independently eligible under the current system. It has been replaced in 2026 by the climate-friendly new construction (KFN 297/298) and home ownership for families (WEF 300); sustainability is now represented by the QNG seal (Source: kfw.de, Stand 2026). For new projects there is no Plus level anymore — plan with the current programs.

What the Plus level consisted of previously

The "Efficiency House 40 Plus" was the highest level of the previous KfW new construction funding. In addition to the Efficiency House 40 standard it required a Plus technology package: a power generating system (usually photovoltaic), a battery storage, a ventilation system with heat recovery as well as a visualization of power generation and consumption. For this there was a higher repayment subsidy than for the simple Efficiency House 40 (Source: kfw.de, Stand 2026). This level was dropped with the adjustment of the new construction funding.

This applies instead in 2026

Two programs take over the succession: The Climate-friendly new construction (KFN 297/298) promotes the Efficiency House 40 with up to 100.000 € (without QNG) or 150.000 € (with QNG) per residential unit. Families with children additionally use Home ownership for families (WEF 300) with up to 270.000 € (guideline value) depending on the situation. The sustainability that was previously rewarded with the Plus package is now reflected by the QNG seal (Source: kfw.de, programs 297/298/300, Stand 2026).

Note: This page deals exclusively with the new build subsidy. The previous renovation subsidy and the heating subsidy for existing buildings are not covered here.

Frequently asked questions about KfW 40 Plus

Honest answers to the discontinued Plus level and to the currently applicable programs — with source and Stand 2026.

Is there KfW 40 Plus anymore?
No. The previous funding level "Efficiency House 40 Plus" was discontinued — the new build funding via the then program ended in 2021/2022, and the Plus level is no longer independently eligible in the current system. It has been replaced in 2026 by the climate-friendly new construction (KFN 297/298) as well as home ownership for families (WEF 300) (Source: kfw.de, Stand 2026).
What was the KfW-40-Plus level actually?
The "Efficiency House 40 Plus" was a higher funding level within the previous KfW new build funding. In addition to the Efficiency House 40 standard, a so-called Plus package with power-generating system (such as photovoltaic), battery storage, ventilation with heat recovery and visualization of energy consumption was required. This level no longer exists in the current funding (Source: kfw.de, Stand 2026).
What applies today instead of KfW 40 Plus?
Today the new build funding runs via the climate-friendly new construction (KFN 297/298) with up to 100.000 € without or 150.000 € with QNG per residential unit as well as via home ownership for families (WEF 300) with up to 270.000 € (guideline) depending on the constellation. Sustainability is now rewarded via the QNG seal instead of a Plus technology package (Source: kfw.de, programs 297/298/300, Stand 2026).
Do I still get KfW-40-Plus funding for photovoltaic and storage today?
Not via the old Plus level. Photovoltaic and storage are today part of the building planning and indirectly contribute to the Efficiency House 40 standard and the QNG rating. There is no longer an independent Plus subsidy for it; in some cases states or municipalities subsidize PV and storage separately (Source: kfw.de / state development banks, Stand 2026).
Do I have an existing KfW-40-Plus commitment — what now?
Anyone who still has a valid commitment from a previous program should check the deadlines and payout conditions specified there with the financing institution. For all new projects only the current programs KFN and WEF apply in 2026 (Source: kfw.de, Stand 2026).
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