Heat pump subsidy in the Netherlands in 2026: ISDE guide

Heat pump subsidy in the Netherlands in 2026

A homeowner receives at least €500 ISDE for an eligible (hybrid) heat pump in 2026. The actual amount depends on the type, capacity, energy label and exact appliance. Check the meldcode and amount with RVO before purchase.

For a first 4 kW air-to-water heat pump with an A+++ label, RVO gives this official example: €1,025 starting amount + 4 × €225 per kW + €200 label bonus = €2,125. Do not apply this formula indiscriminately to every other heat-pump type.

Subsidy examples

Situation	2026 subsidy example	Source
First air-to-water heat pump, 4 kW, A+++	€2,125	RVO
Second air-to-water heat pump, 4 kW	€900	RVO
All-electric air-to-water, 8 kW	€3,025	Milieu Centraal
All-electric ground source, 8 kW	€4,425	Milieu Centraal

A second air-to-water heat pump installed in 2026 receives only €225 per kW, without another starting amount or energy-label bonus. Different calculations apply to heat-pump water heaters and ground-to-water or water-to-water systems. The meldcode remains decisive.

Conditions for homeowners

The current RVO heat-pump page lists conditions including:

• the heat pump is new;
• it is used for space heating or domestic hot water;
• it is installed before you apply;
• the entire installation is completed by a building installation company; self-installation is not permitted;
• you apply within 24 months of the installation date;
• the home was built before 1 January 2019, or its environmental permit was applied for before 1 July 2018.

Different rules may apply to business users and other applicants. This guide concerns private homeowners in the Netherlands.

Check the meldcode before purchase

The RVO meldcode list contains appliances already assessed. Search for the exact brand and model and check the subsidy amount. Ask for the meldcode to be written into the quotation and invoice.

If an appliance is not listed, RVO says you may still apply with a product description and technical documentation. Approval is not guaranteed: the application will be rejected if the appliance does not meet the requirements.

From 2026, split air-to-water heat pumps with a refrigerant charge below 3 kilograms and a GWP above 750 are no longer eligible. Check this before signing if relevant.

How to apply for ISDE

1. Check the home and appliance

Confirm that the home meets the construction-year or permit condition. Then look up the exact heat pump and meldcode at RVO. Do not rely only on a supplier's marketing estimate.

2. Record the details in the quotation

Have the brand, model number, capacity, meldcode, work and total price clearly specified. Confirm that the company will complete the entire installation.

3. Have the heat pump installed

Private homeowners apply after installation. Record the installation date and keep all documents.

4. Collect the application details

RVO requires, among other things:

• the meldcode, or technical documents if no code exists;
• description, model number and brand or manufacturer;
• invoice and proof of payment showing purchase date, amount and payment date or dates;
• installation date;
• your address and details of the installer or supplier, including a contact name and telephone number.

For the online application you need the DigiD app or DigiD with SMS verification.

5. Apply within 24 months

Submit the application through Mijn RVO after installation. Do not leave it until the end of the period, when missing information is harder to correct.

Combining ISDE with insulation

If an eligible insulation measure is also completed within 24 months, the subsidy for that insulation measure may double. This does not automatically double the heat-pump subsidy. Check the separate insulation conditions with RVO.

Municipalities may offer their own schemes or loans. Conditions and budgets change, so check your municipality or regional energy advice service when your plans are concrete.

Common mistakes

• treating a general estimate as the amount attached to the exact meldcode;
• self-installing or having only part of the work done by an installation company;
• installing a different model from the one on the quotation or invoice;
• not retaining the invoice, payment proof or installation date;
• assuming an unlisted appliance will automatically be approved;
• applying more than 24 months after installation;
• adding the starting amount and A+++ bonus again for a second air-to-water heat pump.

Costs and payback

A subsidy reduces the investment but does not prove that a system suits your home. See our current Dutch cost examples and use the heat pump calculator. Also obtain a home survey and heat-loss calculation.

Warmtepompkiezen.nl displays installers and public business information. A company profile does not confirm that every offered model or installation meets all ISDE requirements. Verify the appliance, quotation and rules with RVO. Browse installers by province.

Sources and currency

This page was checked on 30 July 2026 against RVO pages updated in June and July 2026. RVO's current conditions and the exact meldcode are always decisive.