Principles of lease signing in Belgium

Signing a lease is the legal act by which landlord and tenant commit to each other. Under Belgian law, a lease is a consensual contract: it is formed as soon as the parties agree on the property, the rent, and the duration. The signature formalises this agreement.

The lease must be drafted in as many copies as there are parties with a distinct interest, in accordance with Article 1325 of the old Civil Code. Each copy must state the number of originals produced. In practice, the lease is usually signed in at least two copies:

Signing immediately binds both parties. There is no cooling-off period for residential leases in Belgium.

Before signing the lease

Before signing, both landlord and tenant should check several essential elements:

  • Content of the lease: identity of the parties, property description, rent amount, charges, duration, termination conditions.
  • Mandatory annexes: EPC certificate (mandatory in all three regions), entry inventory of fixtures, co-ownership rules where applicable.
  • Regional annexes: in Brussels, the indicative rent grid. In Wallonia, the rental permit if applicable.
  • Identity documents: identity card or passport of each signatory.

Taking time to read the entire lease before signing prevents many disputes. See details: what to check before signing a lease.

Signing methods

Belgian law recognises several signing methods, all legally valid:

Handwritten signature (paper)

The classic form. Each party puts their handwritten signature on every page and the final page of the contract. Simple, but requires physical presence.

Electronic signature

The electronic signature is fully recognised in Belgium thanks to the European eIDAS regulation. An advanced electronic signature (via itsme, for example) offers legal security equivalent to a handwritten signature.

Online signing

It is possible to sign a lease entirely online, from drafting to signing, via a dedicated platform. The lease is generated, signed, and archived digitally.

Signing by power of attorney

When a party cannot sign in person, they may authorise a third party through a special written power of attorney. This mechanism is used when the landlord resides abroad, when a company owns the property, or in cases of temporary unavailability.

The power of attorney must state the property concerned, the authorised person’s name, and the precise scope of their powers. Full guide: signing a lease by power of attorney.

After signing the lease

Once the lease is signed, several steps are necessary:

  1. Registration: the landlord must register the lease with the FPS Finance within 2 months. Free for a primary residence lease.
  2. Entry inventory: to be carried out before or at the time of key handover, preferably by an independent expert.
  3. Rental deposit: the tenant sets up the rental deposit in a blocked account.
  4. Insurance: check fire and civil liability coverage.

The landlord cannot require rent payment before the lease start date.

Cancellation and withdrawal after signing

A lease is binding from the moment of signing. There is no right of withdrawal for a lease in Belgium. Nevertheless, three routes allow modifying or ending a signed lease:

  • Judicial annulment: in case of defective consent (error, fraud, duress), the justice of the peace may annul the lease retroactively. The burden of proof falls on the claimant.
  • Early termination: under the legal notice rules specific to each lease type.
  • Addendum: mutual agreement to modify a lease clause.

Details: cancellation after signing.

Summary

Signing a lease in Belgium immediately binds both parties, with no cooling-off period. Before signing, check the content of the lease, the mandatory annexes, and the identity documents. The lease may be signed on paper, by electronic signature, or entirely online. Where in-person signing is impossible, a special power of attorney allows authorising a third party. After signing, registration with the FPS Finance is mandatory within 2 months.