Heat Pump Loan and Subsidy 2026KfW Grants, Subsidized Loans, and Financing Options in Germany
You can finance a heat pump in Germany by stacking the KfW 458 grant (since 21 July 2026: 30 to 80% of EUR 28,000 eligible costs depending on income, max EUR 22,400) with a KfW 358/359 supplementary loan (up to EUR 120,000 per residential unit) or a personal renovation loan. Apply for the KfW 458 grant before signing any installer contract; finance the remainder with a Hausbank loan (KfW 358 if household taxable income is under EUR 90,000, KfW 359 above that threshold; the effective rate depends on the term you choose).
A heat pump for a single-family home in Germany typically costs between 27,000 and 40,000 EUR installed. With the BEG funding program, homeowners can claim a KfW 458 investment grant of 30 to 80% of eligible costs, depending on income. The remaining amount can be financed through a KfW 358 or 359 supplementary loan or a personal renovation loan. The sections below walk through how these programs stack, what they cost in 2026, and how to apply step by step.
Key Facts at a Glance
German heating law: what applies since 29 July 2026
If you have read elsewhere that a new heating system in Germany must run on at least 65% renewable energy, that rule no longer stands. Section 71 of the Building Energy Act carried it, and the current statute lists that section as repealed. The law itself has been renamed: it is now the Gebäudemodernisierungsgesetz, or GModG.
The obligation did not disappear, though. It moved. Section 42 GModG gives you a choice between ten options when you replace a heating system in an existing building, among them an electric heat pump, a district heating connection, solar thermal, biomass, and still a gas, oil or LPG boiler. Choose a fossil boiler and you take on a duty that bites later.
Green fuel quota for gas, oil and LPG boilers installed after 29 July 2026 (Section 43 GModG)
| From | Minimum share of green fuels |
|---|---|
| 1 January 2029 | 10% |
| 1 January 2030 | 15% |
| 1 January 2035 | 30% |
| 1 January 2040 | 60% |
The quota applies only to boilers newly installed in an existing building after 29 July 2026. You can also meet it with a solar thermal system or a ventilation system with heat recovery; for the period up to the end of 2034 the statute sets specific minimum values for those routes. If your old heating fails beyond repair during 2028 and you replace it with a fossil boiler, the duty starts twelve months after installation. A heat pump is not covered by this quota, which is precisely why it belongs in the financing comparison: a gas boiler costs less today but carries a cost tail from 2029 that you should price in.
Legal status: 22 August 2026. This guide is not legal or energy advice; the statutory text prevails.
The federal government supports the transition through the BEG funding program (Bundesfoerderung für effiziente Gebäude), which provides both direct grants through KfW 458 and subsidized loans through KfW 358 and KfW 359.
BEG Funding Components: How the 30-80% Structure Works (Since 21 July 2026)
The KfW relaunched the heating subsidy on 21 July 2026. The income bonus is now tiered by taxable household income, the climate speed bonus dropped from 20% to 16%, and the former 5% efficiency bonus was abolished. In return the ceiling rose from 70% to 80%, but only for owner-occupiers with a taxable household income up to 30,000 EUR; for everyone else the cap stays at 70%. Eligible costs are limited to 28,000 EUR for the first residential unit (down from 30,000 EUR; additional units: 15,000 EUR each up to a building maximum), and this cap shrinks by 750 EUR every six months starting 1 February 2027.
Funding Components (Source: KfW / energiewechsel.de)
| Component | Rate | Requirement |
|---|---|---|
| Base Grant (Grundfoerderung) | 30% | Any eligible heat pump replacing fossil heating |
| Income Bonus, Tier 1 (Einkommensbonus) | +40% | Taxable household income up to 30,000 EUR/year |
| Income Bonus, Tier 2 | +30% | More than 30,000 up to 40,000 EUR/year |
| Income Bonus, Tier 3 | +10% | More than 40,000 up to 50,000 EUR/year |
| Family supplement (Familienzuschlag) | +10,000 EUR | Raises every income threshold above by a one-off 10,000 EUR if at least one child under 18 with child-benefit entitlement lives in the household |
| Climate Speed Bonus (Klimageschwindigkeitsbonus) | +16% | Replacing a 20+ year old fossil heating as owner-occupier; shrinks by 4 points every six months from 1 Feb 2027, ends 1 Aug 2028 |
| Effective Maximum (Capped) | 80% | The general ceiling is 70%. The 80% figure applies only to owner-occupiers with a taxable household income up to 30,000 EUR, or up to 40,000 EUR where the family supplement applies. Maximum grant 22,400 EUR per unit. The former 5% efficiency bonus was abolished on 21 July 2026. |
Example: Air-to-Water Heat Pump, Owner-Occupied Home
Total installed cost: 35,000 EUR | Taxable household income: 38,000 EUR/year (tier 2) | Replacing 25-year-old gas boiler
35,000 total minus 19,600 grant leaves 15,400 EUR to cover from savings or a loan
KfW Programs for Heat Pump Financing
Since February 2024, KfW (Kreditanstalt für Wiederaufbau) is the sole agency for heating system funding applications. All applications are processed digitally through the "Meine KfW" portal. There are three main programs relevant for heat pump owners:
KfW 458
- Direct grant (non-repayable)
- 30 to 80% of eligible costs (income-dependent)
- Max 22,400 EUR per unit
- Apply before ordering
- Digital via "Meine KfW"
KfW 358
- Subsidized supplementary loan
- Effective rate depends on the term you choose
- Up to 120,000 EUR per unit
- Household income up to 90,000 EUR
- Apply through your bank (Hausbank)
KfW 359
- Supplementary loan (market rates)
- Effective rate depends on the term you choose
- Up to 120,000 EUR per unit
- No income limit
- Apply through your bank (Hausbank)
KfW 358 is for owner-occupiers with taxable household income up to EUR 90,000; KfW 359 applies above that threshold or for non-owner-occupiers, at near-market rates.
Alternative: Personal Renovation Loan
If you do not qualify for KfW 358 (household income exceeds 90,000 EUR) or prefer faster processing without KfW bureaucracy, a personal renovation loan without land register entry is an alternative. Banks like ING, Commerzbank, and online lenders offer purpose-bound renovation loans with better rates than general personal loans.
A purpose-bound renovation loan typically offers lower rates than an unrestricted personal loan, because the property value secures the loan. Current personal-loan benchmarks are published in the Bundesbank MFI-Zinsstatistik.
You can calculate monthly payments for your specific financing amount and compare multiple offers using the comparison tool below. Typical financing amounts after the KfW 458 grant range from 10,000 to 20,000 EUR for most single-family homes.
Heat Pump Costs in Germany (2026)
The total cost of a heat pump installation depends on the system type, building size, and existing infrastructure. The figures below reflect typical market prices for single-family homes based on data from the Verbraucherzentrale and industry associations.
Investment Costs (Installed)
Source: Verbraucherzentrale, industry data. Prices vary by region and provider.
Financing Scenario
Example: 35,000 EUR air-to-water heat pump with a 76% KfW 458 grant (income tier 2 plus climate bonus)
Two financing options:
Heat Pump Noise Requirements for BEG Funding
Since January 2026, heat pumps must meet stricter noise requirements to qualify for BEG funding. The limits are set at 10 dB(A) below the EU Ecodesign maximum and depend on the thermal output capacity of the heat pump, not on the distance to property boundaries. A heat pump exceeding these limits can still be legally installed, but will not receive BEG subsidies. Separately, general TA Laerm immission limits apply in residential areas (typically 50 dB(A) daytime / 35 dB(A) nighttime at the neighbor's property).
BEG Funding Noise Limits by Capacity (from Jan 2026)
| Thermal Output | Max. Sound Power Level | Typical Application |
|---|---|---|
| Up to 6 kW | 55 dB(A) | Small apartments, passive houses |
| 6 to 12 kW | 60 dB(A) | Standard single-family homes |
| 12 to 30 kW | 68 dB(A) | Larger homes, small multi-family |
| 30 to 70 kW | 78 dB(A) | Large multi-family buildings |
Source: BEG funding requirements (10 dB below EU Ecodesign limits), BWP (Bundesverband Wärmepumpe). These are funding eligibility limits, not general legal noise limits. TA Laerm immission limits apply separately.
If your planned installation requires additional noise mitigation (sound enclosure, vibration dampeners, or strategic placement), budget 500 to 2,000 EUR for these measures. For details, see our dedicated heat pump noise protection guide.
SCHUFA and Your Heat Pump Loan Application
Whether you apply for a KfW 358/359 supplementary loan or a personal renovation loan, your SCHUFA credit score plays a role in the approval and the interest rate you receive. Since March 17, 2026, SCHUFA uses a new scoring scale from 100 to 999 (previously a percentage) based on 12 criteria.
When comparing loan offers, always use a Konditionsanfrage (rate inquiry), not a Kreditanfrage (credit application). A Konditionsanfrage is SCHUFA-neutral, meaning it does not affect your score. Most online comparison tools, including ours, use Konditionsanfragen by default.
For more on how the new scoring system works, see our SCHUFA reform 2026 guide. If you are an expat without a SCHUFA history, read our personal loan for foreigners guide for alternatives.
Tax Deduction Alternative: Section 35c EStG
Instead of claiming the KfW 458 grant, owner-occupiers can use the tax deduction route under Section 35c of the German Income Tax Act (EStG). The law allows deducting 20% of eligible renovation costs, capped at EUR 40,000 per property, split over three tax years: 7% in the year the measure is completed, another 7% in the following year, and 6% in the third year.
Eligible measures include wall, roof, and ceiling insulation; window and external-door replacement; ventilation systems; heating-system replacement; digital energy optimisation; and optimisation of an existing heating system more than two years old. The property must be in the EU or EEA, older than ten years, used for own residential purposes, and the work must be carried out by a qualified contractor with a German-language invoice and bank-transfer payment.
Consult a tax advisor (Steuerberater) to calculate which option provides the greater net benefit for your specific tax situation. The decision depends on your marginal tax rate, eligible cost amount, and available bonus components.
Step-by-Step: From Planning to Installation
The order of steps matters. You must apply for KfW funding before signing a contract with an installer. Here is the recommended sequence:
Energy Consultation (2-4 weeks)
- Hire a certified energy consultant (Energieberater). The BAFA Energieberatung Wohngebäude program subsidizes this consultation.
- The consultant performs a heating load calculation and recommends a heat pump type and capacity.
- Ask about noise requirements for your specific installation location.
Obtain Quotes (2-3 weeks)
- Request at least 3 quotes from certified heating installers (SHK-Betriebe).
- Verify the proposed heat pump model appears on the BAFA list of eligible devices.
- Ensure quotes include all ancillary costs (disposal, electrical work, foundation, noise protection).
Apply for KfW 458 Grant (before ordering)
- Register at "Meine KfW" (my.kfw.de) and submit a digital funding application.
- Upload the energy consultant report and the selected quote.
- Do NOT sign a binding contract with the installer before receiving the KfW grant approval (Zuwendungsbescheid).
Arrange Supplementary Financing (parallel to step 3)
- If eligible: apply for KfW 358 (income up to 90,000 EUR) through your bank (Hausbank).
- Alternatively: compare personal renovation loan offers using the tool below.
- A Konditionsanfrage does not affect your SCHUFA score.
Receive Approval and Sign Contract
- KfW processes applications digitally. Automatic preliminary approval is possible within days for complete applications.
- After receiving the grant approval, sign the contract with your chosen installer.
- Begin the KfW 358/359 loan disbursement process if applicable.
Installation and Completion (4-12 weeks)
- The installer removes the old heating system and installs the heat pump.
- After completion, submit the proof of use (Verwendungsnachweis) to KfW via the portal.
- KfW disburses the grant typically within 4 to 8 weeks after verification.
Interest Rate Environment (2026)
The European Central Bank raised its key rates on 11 June 2026: the deposit facility rate now stands at 2.25%, the main refinancing rate at 2.40%, and the marginal lending facility at 2.65% (source: ECB Key Interest Rates). The next scheduled ECB rate decision is 23 July 2026. These rates directly influence the cost of personal and renovation loans across the euro area; check the live page for the latest figures.
For borrowers who do not qualify for the KfW 358 subsidized rate, personal loan rates in Germany generally follow ECB rate movements with a spread. A purpose-bound renovation loan typically carries a lower rate than a general personal loan because the property value secures the loan. The Bundesbank MFI-Zinsstatistik publishes monthly effective rates for new personal-loan business; your individual rate depends on your credit profile, the term and the loan amount.
For a deeper analysis of how ECB policy affects borrowing costs, see our ECB interest rates and credit guide.
Heat Pump Financing for Expats in Germany
Non-German residents who own property in Germany are eligible for the same KfW 458 grant and KfW 358/359 loans as German citizens. The key requirements are property ownership, a German residential address, and a valid residence permit.
If you are new to Germany and lack a SCHUFA history, the KfW loan route through your Hausbank may be easier than a direct personal loan application, since KfW loans have standardized conditions regardless of individual credit scores. Alternatively, lenders like banks serving Blue Card holders may evaluate applications with different criteria.
For general guidance on obtaining personal loans as a non-German resident, see our loan guide for foreigners in Germany.
Practical Tips for Heat Pump Financing
Apply before ordering
KfW 458 requires the application to be submitted before you sign a binding contract. A non-binding quote or reservation letter is acceptable.
Use Konditionsanfrage
When comparing loan offers, insist on a Konditionsanfrage (rate inquiry). This does not appear on your SCHUFA record as a credit application.
Combine grant + loan
Apply for KfW 458 grant and KfW 358 loan simultaneously. The grant covers 30 to 80% depending on income, and the loan covers the remaining amount at subsidized rates.
Ordering in 2027? Check where the pump is made
From the first quarter of 2027, the base grant drops to 15% for heat pumps manufactured outside the EU and associated markets, while EU-made units receive a new 15% value-creation bonus. Orders funded in 2026 are not affected.
Factor in running costs
A heat pump uses electricity. At current German electricity rates (approximately 30-35 ct/kWh), annual heating costs for a well-insulated single-family home are typically 800 to 1,500 EUR.
Get the energy consultant subsidy
The BAFA energy consultation subsidy covers a significant portion of the consultant fee. This expert assessment is practically required for optimal system sizing and grant applications.
Compare Renovation Loan Offers
Enter your desired loan amount (typically the cost remaining after the KfW grant) and compare rates from multiple lenders. All rate inquiries are SCHUFA-neutral.
Frequently Asked Questions About Heat Pump Financing
Related Financing Guides
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KfW 270 Solar Loan Guide
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Heat Pump Noise Protection 2026
TA Laerm limits, installation options, and noise reduction measures.
Heritage Building Renovation Loan
Special financing for listed buildings with preservation requirements.
Barrier-Free Renovation Loan
KfW-supported loans for accessibility and age-appropriate modifications.
General Loan Comparison
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Personal Loan Guide 2026
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Credit Calculator
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KfW Loans and Funding 2026
Complete overview of all KfW programs available in 2026.
ECB Interest Rates 2026
How ECB rate decisions affect your borrowing costs in Germany.
5,000 Euro Loan
Quick comparison for smaller financing needs.
10,000 Euro Loan
Compare rates for a 10,000 EUR personal loan.
Sources and References
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