2026 heat pump subsidy: up to 70 % BAFA grant — what actually lands in your pocket

A heat pump in Germany in 2026 costs on average EUR 27,000–32,000 including installation. Sounds like a lot — and it is. But: the BEG (Federal Subsidy for Efficient Buildings) pays back up to 70 % of that. Anyone catching all the bonuses lands at an own-contribution of around EUR 8,000–12,000. In the past two months four families in my circle of friends made this decision — I looked over their shoulders during the application. What is actually subsidised in 2026, where the pitfalls are, and for whom the switch pays.

What the 2026 BEG subsidy actually offers

Since the GEG reform of 2024 the subsidy is split into several modular bonuses that add up — to a maximum of 70 % of eligible investment costs and at most EUR 21,000 grant per household. The base is up to EUR 30,000. Anyone spending more pays the excess themselves. The bonuses are paid by BAFA and cannot be combined with the §35c EStG tax credit — either grant or tax credit, not both.

The bonuses in detail: 30 % base for any efficient heat pump. Climate-speed bonus +20 % for owner-occupied existing buildings replacing oil, coal or central gas heating. Income bonus +30 % for households with taxable annual income below EUR 40,000. Efficiency bonus +5 % for heat pumps using natural refrigerants (propane R290 instead of synthetic F-gases) or particularly efficient models. The total is capped at 70 % — anyone qualifying for everything reaches the maximum.

What many miss: the subsidy also covers ancillary costs — dismantling the old heater, hydraulic balancing, buffer storage, possibly radiator replacement, pump technology, smart-meter integration. The BEG factsheet lists everything that may go into the base. Anyone without an energy consultant often misses EUR 2,000–4,000 of eligible ancillary items — at 30 % bonus that is EUR 600–1,200 in real subsidy left on the table.

Worked example: detached house, oil heater from 2008

Concrete scenario from my circle: detached house from the early 2000s in Lower Saxony, 145 m² living space, oil heater from 2008 (32 kW, estimated remaining life 2–3 years). Average oil consumption over the last 5 years: 2,300 litres/year. Cost in 2026 at EUR 1.15/L = roughly EUR 2,650/year. Investment in an air-to-water heat pump with propane: EUR 29,800 gross including installation, oil-tank removal, buffer storage, hydraulic balancing.

The subsidy rate for this household: 30 % base + 20 % climate-speed bonus (oil heater replaced) + 5 % efficiency bonus (propane heat pump) = 55 %. Income bonus doesn't apply, household income exceeds EUR 40k. Eligible amount: EUR 29,800, capped at EUR 30,000 base. Grant: 55 % × 29,800 = EUR 16,390. Own contribution: 29,800 − 16,390 = EUR 13,410.

Operating cost afterward: at 145 m² heated area, COP (annual coefficient) 3.5 and an electricity price of 32 cents/kWh — estimated EUR 1,250/year for electricity. Saving vs. oil: 2,650 − 1,250 = EUR 1,400/year. Payback of the own contribution: 13,410 / 1,400 = 9.6 years. With rising oil prices (likely) payback shortens to 6–8 years. Against a typical heat-pump lifespan of 18–22 years, this is a clearly positive deal — and that doesn't include upcoming CO2 pricing.

Three pitfalls many miss

Pitfall 1: the application must be filed BEFORE signing the contract. Anyone who hires the installer first and then goes to BAFA has lost the grant. This is the most common trap. Correct order: find a certified energy consultant (BAFA list) → file the application → wait for the approval → sign the contract with the installer → installation → submit evidence → payment. Between application and contract typically 4–6 weeks, sometimes longer.

Pitfall 2: minimum COP requirements. Only heat pumps reaching a seasonal coefficient of performance (SCOP) of at least 3.0 are eligible — for air-to-water pumps in poorly insulated buildings without underfloor heating this is sometimes borderline. Anyone with a 1970s house should ask the installer for a documented COP, ideally based on a simulation calculation. Ground-source pumps easily hit 4.0–4.5 but are EUR 8,000–12,000 more expensive due to drilling.

Pitfall 3: payment lag. Even after submitting all documents, BAFA disbursement takes 4–8 weeks, peak season (January/February) up to 4 months. So you must initially carry the full upfront cost yourself. A complementary KfW loan (KfW 358) can bridge — favourable rate (1.5–2.5 % currently), up to EUR 120,000 per dwelling unit, term up to 35 years. Makes sense when liquidity is tight.

For whom does a heat pump make sense in 2026 — and for whom not?

Clearly worthwhile: homeowners with oil or gas heaters older than 15 years who would have to replace anyway within the next 5 years. Anyone forced to invest in 2030 anyway and catching the 70 % subsidy in 2026 doubles the benefit. Also clearly recommendable: owners with partly renovated building envelopes (windows replaced, roof insulated) and underfloor heating in at least 60 % of the living area.

Borderline: anyone with an unrenovated 1960s house, no insulation, only classic radiators. COP becomes borderline, electricity use scales up. Here the sequence often pays off: insulation first (roof, windows, possibly facade), then heat pump. A full retrofit is EUR 60–90k, landing in the KfW Effizienzhaus track rather than the single heat-pump grant.

Not worth it (yet): tenants (obvious). Multi-family houses with central gas heating built 2015 or later — lower subsidy and higher technical complexity. Condo owners in a homeowner association without a heating-replacement resolution — there is no individual subsidy here, the association has to decide.

Step-by-step plan: from consultation to running operation

Step 1 (week 1–2): find an energy consultant. Use the BAFA list 'Energieberater BAFA' or the DEN database to find a certified consultant. Initial meeting costs EUR 0–250, many consultants credit this against the later BEG application service. The consultant produces the individual renovation strategy and verifies COP feasibility.

Step 2 (week 3–6): file the BAFA application. Online via the BAFA portal. You need: energy consultant's confirmation (BzA), a quote from the installer (not a contract!), proof of ownership. Processing time 2–8 weeks. Application window stays open until the budget is exhausted — the 2026 budget is EUR 16.7 billion, which should last until autumn.

Step 3 (week 7–16): approval, contract, installation. Sign the contract with the installer after the approval notice. Installation takes 3–10 days depending on complexity. After commissioning: submit the usage proof to BAFA (invoices, installer declaration, hydraulic protocol). Payment 4–8 weeks later. In parallel, switch to a heat-pump electricity tariff (often 15–20 % cheaper) — most utilities offer one.

Common extra costs the subsidy doesn't cover

What surprises many homeowners after disbursement — these items are not (or not fully) eligible:

• Radiator replacement beyond the two most critical rooms. Only radiators essential for COP are eligible. Anyone modernising all radiators pays the rest themselves — often EUR 2,000–4,000 extra.
• Solar PV combined with the heat pump. PV has its own subsidy (feed-in tariff, KfW) but isn't included in the heat-pump BEG. Still worth it — a 10-kWp system reduces heat-pump electricity costs by 30–50 %.
• Smart-home integration beyond the standard controller. Heat-pump control through the standard display is eligible; integration into Home Assistant, IoBroker or Apple HomeKit is not.
• Acoustic dampening beyond the minimum standards. If the outdoor unit sits close to a neighbour's bedroom, acoustic enclosures often make sense — but aren't fully covered.
• Self-installation. If you do parts yourself, that doesn't count as eligible cost. Only invoices from certified firms qualify.

Realistically budget EUR 3,000–6,000 above the planned investment that won't be directly subsidised but rounds the project out.

What you can do now

If your heating system is older than 15 years: schedule an energy consultant this week, EUR 100–250, gives you clarity on what is realistic in your house. Waiting times with good consultants will lengthen again from autumn 2026 — the heat-pump trend is clearly accelerating and the 2027 budget remains uncertain.

If you already installed a heat pump: check the COP after the first heating year. A too-low COP can point to too-cold flow temperature, wrong radiators, or inefficient buffer storage. Our Heating Comparison Calculator transparently compares annual costs of different systems — oil, gas, pellets, heat pump.

Frequently asked questions

Will an air-to-water heat pump cope in northern Germany in winter?

Yes, generally. Modern air-to-water pumps work down to about -20 °C ambient (with reduced efficiency). In Lower Saxony or Schleswig-Holstein at most 10–15 days per year fall below -10 °C — then the electric backup heater ('immersion heater') kicks in. Worried? A ground-source pump is more robust but EUR 8–12k more expensive.

What happens to the subsidy if I sell the house later?

As long as you were the owner at the approval date and used the house yourself, the grant is yours. On sale within the first 7 years after subsidy, BAFA can in exceptional cases demand partial repayment — if it is shown the renovation was speculative. In practice almost never happens.

Can I install a heat pump in a multi-family house?

Yes, but more complex. With central heating (one boiler for all flats) a central heat pump is possible — the application runs via the homeowner association. With flat-by-flat heating, every unit would theoretically need a retrofit, rarely practical. Subsidy rates are slightly lower (60 % instead of 70 %), but the budget is bigger (max EUR 21k per dwelling unit, up to 6 units simultaneously).

How loud is a modern air-to-water heat pump?

Modern models sit at 35–45 dB(A) at 3 m distance — about whispering to fridge humming. Neighbour concerns are clearly rarer in 2026 than in 2018; manufacturers have improved a lot. Important: don't place the outdoor unit directly under a neighbour's bedroom window, use acoustic rubber mounts, observe minimum distances to the property line (in Germany usually 3 m per noise regulation).

What happens if I buy an electric car at the same time?

Strategically smart. EV and heat pump both pull current from the same connection; a thoughtful combination with dynamic electricity tariff (e.g. Tibber, Awattar, 1KOMMA5°) optimises both bills. Adding a solar PV system shifts the expensive heating energy onto cheap self-generated power — a combination likely to become standard in the next 5 years. PV and EV subsidies run separately.

What happens if the subsidy is cut in 2027?

Anyone who files an application in 2026 and gets approval keeps the terms — even if installation only happens in 2027. The 'first-come-first-served' trick. Political state in June 2026: the federal government hasn't yet decided the 2027 budget, but cut discussions are already happening in Berlin back rooms. Anyone planning to switch in the next 2–3 years anyway: start now.