How much legal weight
does my e-signature need?

The law distinguishes between the qualified electronic signature (QES), the advanced electronic signature (AES) and the simple electronic signature (SES).
The three standards vary in terms of area of application and legal weight.

Legal weight
Simple electronic signature
Advanced electronic signature
Qualified electronic signature
Equal to a handwritten signature according to Swiss and EU law
Area of application

that are informal or internal and have a low liability risk.


  • Supplier offer
  • Order
  • Internal document
  • Announcement

without legal form requirement and with calculable liability risk.


  • Rental agreement
  • Contract of sale
  • Simple employment contract
  • Account opening

with legal form requirements or high liability risk.


  • Consumer credit contract
  • Temporary employment contract
  • Management employment contract
  • Audit report
  • Entry with authorities

More information about
Legal security, identity check and authentication methods.

The all-round carefree signature for the highest demands

Two hands - One contract is signed by hand and another with a mobile phone.

The qualified electronic signature (QES) is legally equal to the handwritten signature.
You use QES to maximise the legal weight of your contracts or when the law requires it to be in writing. The latter applies, for example, to loan or wage agreements with a competition clause. For signing with QES on Skribble, a prior identity check in personal contact or via video call or an e-ID is required.

"An authenticated electronic signature combined with an authenticated time stamp within the meaning of the Federal Act of 18 March 2016 on Electronic Signatures is deemed equivalent to a handwritten signature, subject to any statutory or contractual provision to the contrary."
Article 14 paragraph 2bis of the Swiss Code of Obligations (OR)
Identity check

Identity check
This is how you unlock QES on Skribble

QES validieren

Validate QES
Check whether a document has been signed with QES

AES: The pragmatic solution for contracts without formal requirements

Instantly operational thanks to lower requirements

A woman is holding an AES contract in her hand under Swiss law.

The advanced electronic signature (AES) is legally valid for contracts where the law does not prescribe a specific form.
This applies to most types of contracts, such as rental, purchase or mortgage agreements. Anyone who has a Swiss mobile phone number or is a member of a registered AES for Business company can start signing with AES immediately.

SES: The digital handshake

The one-click solution for everyday documents

A woman sitting on a chair and signing a contract on a laptop.

The simple electronic signature (EES) is used when there is a low liability risk.
It is legally valid for documents where the law does not prescribe a specific form. Typical use cases are information letters, orders and internal documents. Anyone who has an e-mail address can start signing with EES immediately on Skribble.

QES vs. AES vs. SES at a glance

Standard Legal weight Identification requirements Area of application Examples
  • Personal identification/ verified e-ID and
  • Mobile phone number
  • Documents with legal form requirements (requiring the written form)
  • Maximising the legal weight of contracts without formal requirement (risk minimisation)
  • Consumer credit contract
  • Temporary employment contracts
  • Management employment contracts
  • Audit reports
  • Entries with authorities
  • Contracts of high value or long duration
  • Swiss mobile phone number or
  • AES-enabled company e-mail address
  • Documents without legal form requirement and with calculable liability risk
  • Rental agreement
  • Contract of sale
  • Simple employment contract
  • Account opening
  • Mortgages
  • E-mail address
  • Documents without formal requirements with low liability risk
  • Supplier offers
  • Orders
  • Organization internal documents
  • Announcements
  • Information letters
  • Informal documents
Do you have any questions? We will be happy to help you.

Any questions?
We are happy to help you.

A man stands next to an electronic document with a giant fountain pen

Sign now, legally and electronically!

No credit card, entrance fee or commitment required.

Try it now