June 2026 brings a dense month of case law and overlooked obligations. The Council of State validates the three-times-rent income rule. The Court of Cassation opens a direct judicial route to recover overpaid indexation on commercial leases. And the "professional landlord" classification continues to catch multi-property owners off guard. SEIDO centralises your leases, payment histories, and key deadlines across your portfolio so you can track these developments without losing the thread. Five reads to sharpen your rental management this month.
1. End of lease: damage, arrears and eviction - the step-by-step procedure in Belgium
When a tenant does not vacate at the end of the lease, the landlord cannot call a bailiff directly: the judge of the peace is mandatory, even if the lease has been validly terminated. In Brussels, the winter moratorium (1 November to 15 March) suspends the enforcement of eviction judgments. A detailed, signed entry inventory of fixtures is the foundation of any evidence file in a rental damage dispute.
2. Three times the rent: what Belgium's Council of State confirms about tenant selection
The Council of State ruling of 30 March 2026 validates the practice of requiring that tenant applicants show income equal to at least three times the rent and fixed charges. This solvency criterion is lawful and does not, in itself, constitute discrimination based on financial means. The condition: apply it consistently and document it identically for every applicant.
3. A professional landlord without knowing it? What economic law changes for your leases
An owner of around ten properties can qualify as a "business" under the Economic Law Code, even without a BCE registration number. The direct consequences: unilateral penalty clauses become void, default interest is capped at 10.5% (legal rate, first half of 2026), and lump-sum indemnities are subject to a strict scale. Reviewing lease clauses before a dispute arises is far less costly than doing so during one.
4. Commercial lease: reclaiming overpaid indexation without a registered letter
The Court of Cassation ruling of 20 March 2026 (C.24.0122.F) settles the question: in a commercial lease, the tenant can take the matter directly to court to recover unlawfully collected indexation, without a prior registered letter. A five-year limitation period runs from the date of the court claim. A miscalculated indexation therefore exposes the landlord to a retrospective refund.
5. Brussels rent grid: why its update is postponed again
The Brussels rent grid, based largely on 2017 surveys, was due for an update in 2026. The new regional Secretary of State for Housing has postponed that revision. As an illustration: in May 2026, a one-bedroom flat near Place Anneessens rents for around 648 EUR/month, compared to 736 EUR/month in Uccle, a difference of only 88 EUR that the current grid does not accurately reflect. Legal uncertainty persists for both landlords and tenants.
Monthly checklist
- For any end-of-lease dispute: go through the judge of the peace (no direct bailiff), and account for the Brussels winter moratorium from 1 November to 15 March
- For each tenant selection: apply the three-times-rent rule identically and in documented form for every applicant, and keep solvency documents on file
- If you own more than one rental property: check your potential business status and audit penalty clauses, default interest, and lump-sum indemnities in your current leases
- For any commercial lease: review your indexation history and correct any overpayments before a tenant takes direct legal action
- For each Brussels property: record the rent per unit in your management tool and monitor official announcements on the rent grid framework
- For any multi-property portfolio: centralise the entry inventory of fixtures (dated photos, signed contradictory report) as a systematic evidence base for end-of-lease disputes