Non-registration has serious consequences for the landlord
If the lease is not registered, the landlord faces three major consequences: no right to index the rent, the tenant can leave without notice or indemnity, and the lease is not enforceable against third parties (e.g., a new owner after sale). The fine is only 25 EUR, but the indirect costs can be substantial.
Registration of the lease is a legal obligation that falls on the landlord. For residential leases, registration is free and can be done online via MyRent. The 2-month deadline starts from the date of signature.
Despite the low fine, the consequences of non-registration are designed to strongly incentivise compliance.
Impact on landlord and tenant
| Consequence | Details |
|---|---|
| No rent indexation | The landlord cannot apply annual rent indexation for the entire period of non-registration |
| Tenant can leave without notice | The tenant may terminate the lease at any time without giving 3 months’ notice and without paying any indemnity |
| Not enforceable against third parties | If the property is sold, the new owner is not bound by the lease |
| Fine of 25 EUR | Payable by the landlord for late registration |
| Deposit complications | Disputes about the deposit may be affected |
For the tenant, non-registration is actually advantageous: they gain the ability to leave at any time and are protected against rent increases. However, the lease’s non-enforceability against a new owner is a risk.
The consequences of non-registration apply from the date of signature until the date of actual registration. Once the lease is registered, the normal rules resume prospectively.
How to register late
It is always possible to register the lease after the 2-month deadline:
- Go to MyRent (myminfin.be) or visit your local registration office
- Upload or present the signed lease (original or electronic copy)
- Pay the 25 EUR fine for late registration
- The registration takes effect from the date of registration (not retroactively)
Once registered, the landlord regains the right to index the rent (going forward only) and the tenant must again respect the normal notice periods.
BailBelgique streamlines the registration process by generating a lease file ready for upload to MyRent. Registration reminders are sent automatically.
Regional specifics
Brussels-Capital Region
The Brussels ordinance adds that the landlord must register the lease within 2 months. Non-registration has the same consequences as described above plus potential additional sanctions under regional enforcement.
Walloon Region
The Walloon decree mirrors the federal consequences. Wallonia has been particularly active in enforcing registration requirements through housing inspections.
Flemish Region
The Flemish Housing Rental Decree reaffirms the same consequences. In Flanders, the mandatory lease template includes a reminder about the registration obligation.
Belgian Registration Code, Art. 35 + Regional housing legislation — Registration is mandatory and free for residential leases. Non-registration triggers loss of indexation rights and notice period protections.