eSignature law in European Union
Electronic signatures are recognized across all EU member states under Regulation (EU) 910/2014 — eIDAS.
Governing law: Regulation (EU) No 910/2014 (eIDAS) (2014)
The eIDAS Regulation (EU 910/2014) creates a single, harmonized framework for electronic signatures across all 27 EU member states. It defines three legally recognized tiers: Simple Electronic Signature (SES) — any electronic mark indicating intent; Advanced Electronic Signature (AdES) — uniquely linked to and identifies the signer with tamper-evidence; and Qualified Electronic Signature (QES) — AdES backed by a Qualified Certificate from a Qualified Trust Service Provider (QTSP). QES is automatically equivalent to a handwritten signature in every member state. SES and AdES are legally admissible but their weight depends on the surrounding evidence — the standard for most commercial contracts. The Regulation also covers electronic seals (for legal persons), timestamps, and electronic registered delivery.
What makes an eSignature valid in European Union
- For SES: any electronic data attached to other data with intent to sign
- For AdES: unique link to signer, signer identification, sole control of signing data, tamper-detection
- For QES: AdES + Qualified Certificate from QTSP + Qualified Signature Creation Device
- Cross-border recognition guaranteed within the EU/EEA
- Non-discrimination: an eSignature cannot be denied legal effect solely because it is electronic
Where eSignatures are not valid
- Documents requiring written form under member-state-specific law (varies by country)
- Certain notarial acts and registry filings (jurisdiction-specific)
- Family-law and inheritance documents in some member states
- Public-administration acts requiring qualified seals
FAQ
Are electronic signatures legal across the EU?
Yes. eIDAS (EU 910/2014) provides uniform legal recognition across all 27 member states, with mutual cross-border validity for QES.
When do I need QES in the EU?
For most commercial contracts SES or AdES is sufficient. QES is required when the law specifically demands qualified form — typically certain real-estate, family-law, and notarial acts.
Can I use a PDF Verified signature in any EU country?
Yes. PDF Verified SES is recognized in every member state under eIDAS Article 25(1). For AdES/QES, we partner with EU-listed QTSPs on Business Plus and Enterprise.
How does eIDAS handle cross-border recognition?
A QES generated in one member state must be recognized as equivalent to a QES in every other member state (Article 25(3)). SES and AdES are admissible but their evidentiary weight depends on member-state procedure.