March 2026: a busy month for landlords. A new Brussels government, a retroactive tax blow, a rental market under strain — and case law opening unexpected doors on the winter moratorium. Six readings to stay ahead.
1. New Brussels government: what the DPR changes for landlords
After 614 days without a government, the Brussels DPR sets the course for the entire legislature: evaluation of the rent reference grid, simplified planning permits, doubled BE-HOME grant. The concrete effects are still to come, but the political signal is clear. Read →
2. Mortgage interest deduction removed: constitutional challenge
The Act of 11 December 2025 removes the interest deduction for buy-to-let properties with retroactive effect from 1 January 2025. Landlord associations have brought a collective constitutional challenge. What you need to do before your next tax return. Read →
3. Wallonia: the new EPC energy renovation roadmap for 2028
Wallonia is introducing mandatory energy renovation on sale from 2028, with a target of minimum EPC B for the entire stock by 2050. Phase-out of oil heating, detailed deadlines, and evolution of financial support: the full picture to plan ahead. Read →
4. Federia barometer 2025: rental supply down 27%
Based on nearly 70,000 contracts, the Federia-CIB barometer confirms two mutually reinforcing trends: +3.7% rents in Brussels, +5.4% in Wallonia, and a historic four-year contraction in supply. What this means for your rental strategy. Read →
5. Behavioural taxes on property: how to challenge them
Vacancy tax up to EUR 24,000 per year, EUR 4,000 for a deteriorated facade, EUR 1,500 for a dilapidated cornice. Property-owner associations report widespread drift in Belgian municipalities — here is how to respond effectively. Read →
6. Winter moratorium: two rulings confirm the right is not absolute
The justices of the peace of Uccle (June 2025) and Woluwe-Saint-Pierre (November 2025) both validated contractual waiver of the winter moratorium in written settlement agreements. A concrete route for landlords facing defaulting tenants. Read →
Monthly checklist
- Check whether your buy-to-let mortgage is affected by the removal of the interest deduction (Act of 11/12/2025)
- If affected by the interest deduction removal: seek advice from your accountant or tax lawyer
- Assess the EPC rating of your Walloon properties and plan works before 2028
- Compare your rents against the Federia 2025 barometer for your region
- Check the behavioural taxes applied by your municipalities and identify possible challenges
- For any payment agreement with a defaulting tenant: include a winter moratorium waiver clause
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