Energy grants in Belgium: the complete 2026 guide
3 regions, 3 radically different systems in 2026. Renolution suspended in Brussels, Primes Habitation in transitional regime in Wallonia until 30 September, Mijn VerbouwPremie restricted in Flanders since 1 March. Above all this, two federal levers that apply everywhere: 6% VAT and 30% tax deduction for roof insulation. Here's the honest snapshot of this pivotal year.
This article gives the Belgian overview 2026: federal levers, comparison of the 3 regions, most-supported works and timing strategy. For the precise conditions, caps and procedures of your region, then read the dedicated article Brussels, Wallonia or Flanders.
The 2026 picture — why everything changed at once
2026 is a pivotal year for energy grants in Belgium. The three regions have, almost simultaneously, overhauled or suspended their systems, each for different reasons. Understanding these reasons helps anticipate the right renovation strategy.
Three different logics: political deadlock in Brussels, planned transition in Wallonia, social refocus in Flanders. But one common consequence: for many Belgians, the energy investment return in 2026 will depend more on federal levers and public loans than on regional grants.
The 2 federal levers that apply everywhere
Above the regional systems, two federal mechanisms remain activatable in the three regions, regardless of your income and independent of the political situation of your region.
Lever 1 — The reduced 6% VAT
For renovation works in homes over 10 years old, VAT is reduced from 21% to 6%. This is the most stable and broadest advantage of the Belgian system.
Since 1 January 2026, the 6% VAT applies to the heat pump even in new homes. This is a structuring measure that makes the HP more accessible for major renovations and new high-performance constructions.
Lever 2 — The federal 30% tax reduction on roof insulation
Reintroduced on 1 January 2026 for 5 years, this tax reduction covers 30% of the roof insulation cost, capped at approximately €3,290 per home. It can be combined with regional grants and 6% VAT.
| Federal lever | Scope | Amount |
|---|---|---|
| 6% VAT | All renovation works, homes 10+ years old (+ HP in new homes since 2026) | 15 percentage points VAT savings |
| 30% tax reduction | Roof insulation only | Capped at ~€3,290 |
The master comparison — who can claim what in 2026
Here is the synthesis table of the 3 regional systems in May 2026. The precise conditions and caps per work are detailed in the dedicated regional articles.
| Criterion | 🏛️ Brussels | 🌻 Wallonia | 🌊 Flanders |
|---|---|---|---|
| Grant system | Renolution suspended | Primes Habitation (transitional until 30/09/2026) | Mijn VerbouwPremie (restricted since 01/03/2026) |
| Mandatory audit | No (program frozen) | Yes except roof/attic | Not systematic |
| Income categories | — | 4 categories (R1 to R4) | 4 categories (1 to 4) |
| Global cap | — | €50,000/home over 5 years | Variable by works |
| Public loan reduced rate | ECORENO (2.5–3.5%) | Rénopack 0% up to €60,000 | Mijn Verbouwlening up to €60,000 |
| Tenants eligible | Yes (ECORENO) | Limited | Limited |
| Major announced switch | Unknown date (government formation) | 1 October 2026 | Reform already in force |
In Wallonia and in Flanders, your income category drastically determines the final amount. In Flanders, owning a second residence or building land automatically shifts you to category 1, regardless of your actual income. Always check your category via the official simulator before signing a quote.
The most supported works in 2026
Not all works are equal in 2026. Some combine multiple levers and remain very profitable even if a regional grant is reduced or suspended. Others have lost their grant and only hold thanks to VAT.
🥇 Roof insulation — the best-supported renovation
Roof insulation is the only renovation that combines 3 federal and regional levers simultaneously:
- Federal 30% tax reduction (up to ~€3,290)
- 6% VAT on labour and materials
- Regional grant (variable by region and category)
In Wallonia, it's even the only item that doesn't require a prior housing audit, which considerably speeds up the procedure. In Brussels, despite the suspension of Renolution, the combination 6% VAT + 30% deduction + ECORENO remains interesting enough to justify the project.
🥈 Heat pump — the big winner of 2026
The HP is the only grant that holds everywhere, including in Flanders where it's the last grant accessible to categories 1 and 2. In Brussels, the extension of 6% VAT to the HP in new homes changes the profitability calculation.
| Region | HP grant in 2026 |
|---|---|
| 🏛️ Brussels | No regional grant (Renolution suspended) but extended 6% VAT + ECORENO + deductions |
| 🌻 Wallonia | €600 to €3,600 according to income category, audit mandatory |
| 🌊 Flanders | €1,500 air-water HP (all categories), €800 hybrid, specific caps for categories 1-2 |
🥉 Windows and glazing — reduced support
Windows have lost part of their support. In Brussels, no more Renolution windows grant. In Wallonia, grant conditional on an audit. In Flanders, full access only for categories 3 and 4. The 6% VAT remains systematic, but does not fully compensate for the removal of the grant.
❌ Gas or oil boiler — end of grants
No regional grant in Belgium in 2026 for a classic gas or oil boiler. Only hybrid boilers (gas + HP) retain limited support. If your boiler breaks down, the rational calculation pushes towards the HP (extended 6% VAT, residual grant, performance).
❌ Photovoltaic — no direct grant in Wallonia or Flanders
Photovoltaic has lost its direct support in two regions out of three. In Brussels, alternative programs exist (rental from €200/year). In Wallonia and Flanders, the solar panel is now financeable via public loans (Rénopack, Mijn Verbouwlening) but not via a purchase grant.
The renovation strategy by profile
Depending on your profile and region, the optimal strategy in 2026 isn't the same. Here are four typical cases.
The 2026 key calendar to know
Several dates structure the year 2026. Anticipate your project planning accordingly.
The right administrative reflexes
Regardless of region, certain reflexes apply everywhere in Belgium in 2026. Ignoring them means losing significant amounts.
The national pitfalls to avoid in 2026
Going further — the regional articles
This article has set the overview. For the precise conditions, caps per work and concrete procedures of your region, read the dedicated article:
Renolution suspended: ECORENO, municipal grants, 6% VAT, Homegrade support. The guide to renovate despite the suspension.
Read the details →Transitional regime until 30/09/2026, housing audit, 4 categories, €50,000 cap. Switch to Rénopack/Rénoprêt on 1 October.
Read the details →1 March 2026 reform: only categories 3 and 4 retain full access. HP caps, Mijn Verbouwlening up to €60,000, Fluvius grants.
Read the details →