Three regions, three rulebooks
Residential leases have been regional since 2017. What follows is what actually differs between Brussels, Flanders and Wallonia.
| Brussels | Flanders | Wallonia | |
|---|---|---|---|
| Rental deposit, maximum | 2 months | 3 months | 2 months |
| Short lease, renewals | More than twice possible | Once, 3 years total maximum | More than twice possible |
| Registration | Free, within 2 months, landlord’s duty | Free, within 2 months, landlord’s duty | Free, within 2 months, landlord’s duty |
| If the lease is not registered | Tenant notice drops to zero | Tenant notice drops to one month | Tenant notice drops to zero |
| Indexation | Health index, once a year, capped by EPC | Health index, once a year, capped by EPC | Health index, once a year, capped by EPC |
Written in August 2026. Regional rules move: check the official source of your region before relying on a figure. Proporio applies the rules of the region each property sits in.
Everything connects in Proporio
Rent indexation calculator →
Live official index figures, the PEB/EPC correction of each region (Brussels, Flanders, Wallonia), and a letter emailed to you. Free, no sign-up.
What a lease must contain →
Mandatory clauses, forbidden ones, and the deadlines that bite.
Built for Belgium →
Health-index indexation, leases for all three regions, in French and Dutch.