Check the digital certificate embedded in the document
To verify an electronic signature, check the digital certificate embedded in the signed PDF document. Use the EU DSS Demonstration validation tool or the Belgian eID validation portal. A valid signature displays the signer’s identity, a timestamp, and the certificate authority that issued the signing certificate. Any modification after signing invalidates the signature.
Electronic signatures on Belgian leases are governed by the eIDAS Regulation (EU) 910/2014 and Belgian law. There are three levels of electronic signature: simple, advanced, and qualified. Only advanced and qualified signatures provide robust authenticity guarantees.
When a lease is signed electronically using a qualified signature (e.g., via Belgian eID or itsme), the signature is cryptographically linked to the signer’s identity. This makes it virtually impossible to forge and easy to verify through standard tools.
Understanding whether electronic signatures are legal in Belgium is an important prerequisite for this verification process.
Verification tools and methods
Method 1: PDF reader (Adobe Acrobat)
- Open the signed PDF in Adobe Acrobat Reader
- Click on the signature panel (left side)
- Check that it says “Signed and all signatures are valid”
- Click on the signature for details (signer, timestamp, certificate)
Method 2: EU DSS Demonstration
- Go to the EU DSS Demonstration validation tool
- Upload the signed PDF
- Review the detailed validation report
Method 3: Signing platform audit trail
- Contact the platform used for signing (BailBelgique, Connective, etc.)
- Request the complete audit trail
- Review timestamps, IP addresses, and authentication methods
Leases signed via BailBelgique use qualified electronic signatures with a complete audit trail. Each signed document includes an embedded validation certificate and a detailed signing report that can be verified independently.
What to look for when verifying
A valid electronic signature should display the following elements:
| Element | Description | Red flag if missing |
|---|---|---|
| Signer identity | Full name linked to national identity | Anonymous or unverified signer |
| Timestamp | Date and time of signing | No timestamp or future date |
| Certificate authority | Trusted issuer (e.g., Belgian CA, Certipost) | Self-signed or unknown issuer |
| Document integrity | No modifications since signing | Document modified after signing |
| Signature level | Simple, advanced, or qualified | Only simple for a lease |
For Belgian leases, a qualified electronic signature (QES) provides the highest level of assurance. It is legally equivalent to a handwritten signature and is created using a qualified certificate issued by a trusted provider.
A simple electronic signature (e.g., typing your name or pasting an image of your signature) does not provide the same legal guarantees. For a lease, always use at least an advanced electronic signature. The Justice of the Peace will accept qualified electronic signatures without question.
Regional specifics
Brussels-Capital Region
Brussels courts and the registration office (FPS Finance) fully accept electronically signed leases. The Brussels Housing Code does not impose any specific format requirements beyond those in federal law and the eIDAS Regulation.
Wallonia
Wallonia accepts electronic signatures for lease registration via MyRent. The Walloon Residential Lease Decree does not add regional requirements for electronic signatures. Courts accept qualified signatures as valid evidence.
Flanders
Flanders has been particularly progressive in accepting electronic signatures. The Flemish Housing Rental Decree and Flemish courts fully accept qualified electronic signatures. The Flemish region also promotes digital lease management.
eIDAS Regulation (EU) 910/2014 — Legal framework for electronic signatures across the EU. Belgian Law of 21 July 2016 (Digital Act) — National implementation. A qualified electronic signature has the same legal effect as a handwritten signature.