What is the joint liability clause in shared housing?

The joint liability clause is the cornerstone of most shared housing leases in Belgium. It means that each co-tenant is individually liable for the full rent, charges and property damage, even if the other co-tenants default.

In practice, if one co-tenant does not pay their share of the rent, the landlord may claim the full amount from any other jointly liable co-tenant. That co-tenant must pay and then exercise a right of recourse against the defaulting co-tenant to recover the sums advanced.

This clause protects the landlord against the risk of non-payment. It is virtually standard in Belgian shared housing leases. From the co-tenants’ perspective, it represents a significant financial commitment that extends beyond their own share.

Joint liability is not presumed: it must be expressly provided for in the lease. Without an explicit clause, each co-tenant is only liable for their own share (several liability).

Joint liability vs several liability

The distinction between joint and several liability is fundamental in shared housing.

Joint liability: each co-tenant is liable for the full rent and charges. The landlord chooses whom to pursue for payment. The co-tenant who pays on behalf of the others has a right of contribution against them.

Several liability (or divisible obligation): each co-tenant is only liable for their own share. If one co-tenant does not pay, the landlord may only claim that co-tenant’s share and must take action against them directly.

In practice, the vast majority of landlords require joint liability. Several liability clauses are rare because they weaken the landlord’s protection. A co-tenant who wishes to limit their risk may negotiate a cap or a time limit on joint liability, but such arrangements remain exceptional.

Joint liability generally extends to three areas:

  • Rent: full monthly payment.
  • Charges: provisions or fixed amount, depending on the lease. See charges in shared housing.
  • Property damage: repairs at the end of the lease or during the lease.

Consequences when a co-tenant leaves

A co-tenant’s departure does not automatically end their joint liability. This is one of the most overlooked and problematic aspects of shared housing.

Without an addendum: the departing co-tenant remains jointly liable until the end of the lease. Even after vacating the property, the landlord may pursue them for unpaid rent or damage arising after their departure.

With an addendum: if the landlord agrees to sign an addendum releasing the departing co-tenant from the joint liability clause, that co-tenant is discharged from any future obligation. The addendum must be in writing and signed by all parties (landlord, departing co-tenant, remaining co-tenants).

Replacement: in most cases, the release from joint liability is conditional on the effective replacement of the departing co-tenant by a new co-tenant accepted by the landlord. The co-tenancy agreement generally organises this replacement procedure.

To limit the risks associated with departure, it is recommended to:

  • Negotiate an automatic release clause upon replacement.
  • Provide for a maximum replacement period in the lease.
  • Formalise each departure with an addendum signed by the landlord.

See also: terminating a shared housing lease.

Negotiating the clause and regional specifics

The joint liability clause is negotiable before signing the lease. Several adjustments are possible, although landlords rarely agree to them.

Time limitation: provide that the departing co-tenant’s joint liability ends X months after their departure, even without a replacement. This period is generally 3 to 6 months.

Automatic release: stipulate that the co-tenant is released from joint liability as soon as a solvent replacement is accepted by the landlord.

Liability cap: limit joint liability to a maximum amount (for example, 6 months’ rent). This clause is very rare in practice.

Regional specifics

Wallonia: the Decree of 15 March 2018 regulates shared housing and requires the co-tenancy agreement to cover departure and replacement arrangements. Joint liability remains a contractual clause, not imposed by law.

Brussels: the Ordinance of 27 July 2017 recognises the shared housing lease. The joint liability clause is freely agreed but must be explicitly stated. The Ordinance provides for the possibility of individual departure with replacement.

Flanders: the Vlaams Woninghuurdecreet (2019) does not impose joint liability, but most leases include it. The decree provides specific rules for replacing a departing co-tenant.

In all three regions, joint liability is not presumed. Without an express clause in the lease, the obligation is several. Before signing, read the joint liability clause and its release conditions carefully. To generate a lease adapted to your region, consult our shared housing lease template.