Digital Quote Signing – How It Works and Is Valid in Belgium

Learn the legal basis for electronic signatures on quotes in Belgium and get a practical step‑by‑step guide for small construction firms.

Enfin editorial teamUpdated: 3 minute read

Is an electronic signature legally recognised in Belgium?

Belgian law implements the EU eIDAS regulation, which defines three types of electronic signatures:

  • Simple electronic signature – a typed name, a tick box or a signature on a tablet. It is legally valid but may be easier to challenge.
  • Advanced electronic signature – uniquely linked to the signatory and capable of identifying the signer. It provides stronger evidential value.
  • Qualified electronic signature – created with a qualified certificate (e.g., a Belgian eID card or itsme). It has the same legal effect as a handwritten signature.

For most contractor quotes, an advanced electronic signature offers sufficient legal certainty without requiring a card reader.

Typical workflow

  1. Create the quote in your quoting or ERP system.
  2. Send a secure link to the client (avoid attaching a PDF).
  3. The client opens the link, reviews the quote and clicks an “Accept” button.
  4. The platform records:
    • Signatory’s name and e‑mail address
    • Date and time of acceptance
    • Optional IP address
    • Signature data required by the chosen security level
  5. Both parties receive an email confirmation.

The process eliminates printing, scanning and postal steps.

Practical benefits

  • Speed – acceptance can occur as soon as the client reviews the quote.
  • Traceability – you can see when the quote was opened and whether it has been accepted.
  • Evidence – system logs create an audit trail that can be used if a dispute arises.
  • Document control – digital quotes remain in your system, reducing the risk of loss.

Common concerns and responses

ConcernPractical response
Clients are not comfortable with digital toolsMost people already use online banking or e‑commerce sites; a simple link and button are easy to handle. Offer a paper alternative only when necessary, but make digital the default.
Need for a personal discussionDiscuss the quote on‑site and let the client sign on a tablet, combining personal contact with digital capture.
Legal robustnessAn advanced electronic signature is generally accepted for typical renovation contracts. In case of dispute, the platform’s logs serve as proof.

Setting it up for your business

If you use a quoting system with an e‑signature module – enable the built‑in signing feature, send the link, and let the system record the acceptance.

If your system does not include e‑signing – look for an integrated e‑signature add‑on or connect an external provider that complies with eIDAS. Ensure the tool can capture the required data (name, e‑mail, timestamp, optional IP).

Quick implementation checklist

  • Confirm that your quoting software can generate a secure link.
  • Choose the appropriate signature level (advanced is usually sufficient).
  • Test the workflow: create a quote, send the link, sign, and verify the audit log.
  • Train your team on how to explain the process to clients.
  • Store a copy of the signed quote and the associated log in your document management system.

Further information

For detailed guidance on electronic signatures under eIDAS, consult the European Commission’s eIDAS portal. For any tax‑related questions, refer to the Belgian VAT information site and verify your specific situation.

Next step – Want to explore digital quoting for your company? Contact us.

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