Lease signing in the digital age

Signing a lease is an important legal moment: it is the act that commits landlord and tenant. Traditionally, this involved a physical meeting, two paper copies and initials on every page. In 2026, the electronic signature offers an alternative recognised by Belgian law and European law.

Yet, many landlords still hesitate. Is the electronic signature really as valid? Is it secure? And what happens in case of dispute? This comparison answers all these questions.

Electronic signature methods in Belgium

The eIDAS regulation distinguishes three levels of electronic signature:

Simple signature: a click on “I accept” or a signature image pasted into a PDF. Low probative value, insufficient for a lease.

Advanced signature: uniquely linked to the signatory, created by data under their exclusive control. Good probative value, but not equivalent to a handwritten signature.

Qualified signature: created by a qualified device and based on a qualified certificate. This is the maximum level, legally equivalent to handwritten signature. In Belgium, two methods allow it: itsme (smartphone, 7 million users) and eID card (computer with card reader).

Which method to choose in 2026?

The qualified electronic signature via itsme or eID has become the safest, fastest and most practical method for signing a lease in Belgium. It eliminates the constraints of paper signing (travel, coordination, risk of loss) while offering superior legal security.

BailBelgique natively integrates itsme and eID signature into its lease creation process. In a few minutes, your lease is created, signed and securely archived. Try for free and sign your next lease without travelling.