ISDE CheckerGuides
Plain-English explanations of the Dutch ISDE subsidy for your heat pump.
Combining a heat pump and insulation under the ISDE
Combine a heat pump with insulation within 24 months and the ISDE subsidy for the insulation doubles. How it works, with RVO's worked example.
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Heat pump meldcode not on the list: what now?
Is your heat pump missing from the ISDE notification code list? You can still apply for the subsidy. Here is what to include and what RVO checks.
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How to apply for the ISDE subsidy: step by step
Apply for the ISDE subsidy for your heat pump in 5 steps (conditions, notification code, purchase, installation and applying with DigiD), as set out by RVO.
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How to look up a heat pump's meldcode (ISDE notification code)
How to find your heat pump's ISDE notification code (meldcode) in RVO's official list, and what to do if your model is not on it.
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ISDE heat pump subsidy 2026: how much do you get?
How much ISDE subsidy do you get in 2026 for a (hybrid) heat pump in the Netherlands? Amounts, conditions and the 24-month application window, checked against RVO.nl.
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ISDE subsidy for a hybrid heat pump in 2026: how much?
How much ISDE subsidy do you get in 2026 for a hybrid heat pump? RVO's formula (base amount, amount per kW and label bonus) with a worked example.
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