Which digital signature solutions are legally recognised in Switzerland and easy to use?
Which digital signature solutions are legally recognised in Switzerland and easy to use?
Selecting a digital signature solution in Switzerland is no longer just about replacing pen and paper. Businesses and public sector organisations need a platform that guarantees legal validity while offering an intuitive user experience for employees, customers and external partners.
Whether you are signing employment contracts, supplier agreements or regulated business documents, the ideal solution should remove friction, not create it.
The most effective digital signature platforms combine Swiss legal compliance, strong security and a seamless signing experience, allowing users to complete signatures from a desktop or mobile device in just a few clicks.
What makes a digital signature legally recognized in Switzerland?
Not every electronic signature has the same legal value.
In Switzerland, legally recognised electronic signatures are governed by ZertES (Federal Act on Electronic Signatures). Depending on the business process, organisations can use different signature levels.
| Signature type | Typical use cases | Legal recognition |
| Simple Electronic Signature (SES) | Employment contracts, internal approvals, low-risk documents | Suitable where no formal legal requirement exists |
| Advanced Electronic Signature (AES) | Commercial contracts, procurement, B2B agreements | Strong identity verification and integrity protection |
| Qualified Electronic Signature (QES) | Public administration documents, regulated documents | Equivalent to a handwritten signature under Swiss law |
Each signature level serves different legal and business requirements. Read our dedicated guides on SES, AES, and QES to understand when each type of electronic signature should be used, the legal validity it provides, and how to choose the right option for your specific use case.
Ease of use matters as much as compliance
Legal validity alone is not enough.
If users struggle to complete the signing process, adoption suffers, agreements take longer to finalise, and business processes become less efficient.
An intuitive digital signature platform should allow users to:
- Sign documents without installing software
- Complete signatures from any device
- Receive clear signing instructions
- Authenticate quickly and securely
- Track document status in real time
- Complete the entire workflow in just a few minutes
The easier the experience, the faster contracts are completed and the higher the user satisfaction.
Key criteria when evaluating digital signature solutions
Before selecting a provider, organisations should evaluate more than compliance.
| Evaluation criterion | Why it matters |
| Swiss legal compliance (ZertES) | Ensures legally valid signatures where required |
| eIDAS compatibility | Facilitates cross-border business within Europe |
| User experience | Reduces abandoned signing processes |
| Mobile signing | Enables remote work and customer convenience |
| Identity verification | Strengthens trust and signer authentication |
| Audit Trail | Demonstrates who signed, when and how |
| Security certifications | Supports corporate governance and compliance |
| API integrations | Connects with HR, CRM and ERP systems |
| Integrations with business tools (Microsoft 365, Google Workspace) | Simplifies signing within everyday business applications |
| Data hosting options | Helps meet internal security and data residency requirements |
Organisations should consider all these criteria together rather than focusing on legal compliance alone.
Why Swiss organisations increasingly prefer all-in-one signing platforms
Modern organisations expect much more than a tool that simply captures a signature.
Swiss organisations across the private and public sectors increasingly look for platforms that combine:
- Digital signatures
- Identity verification
- Secure document workflows
- Audit-ready evidence
- Enterprise security
- Easy integration into existing business applications
This reduces administrative complexity while improving security and regulatory compliance.
How DeepSign addresses these requirements
DeepSign is designed to help organisations combine legal compliance with an outstanding user experience.
The platform supports Simple (SES), Advanced (AES) and Qualified Electronic Signatures (QES), enabling businesses to select the appropriate signature level for every document and regulatory requirement.
Unlike many digital signature solutions, DeepSign includes integrated identity verification at no additional cost. This keeps the signing process seamless, avoids interruptions caused by external identity verification services, and removes potential cost barriers for signers, making it easier for organisations to drive adoption while maintaining legal compliance.
Another key advantage is its flexible pricing model. Businesses can choose between pay-per-use for occasional signing needs or signature packages for higher document volumes, making the platform suitable for SMEs, large enterprises and public sector organisations with evolving requirements.
Key capabilities include:
| Feature | Business benefit |
| SES, AES and QES support | Enables you to choose the appropriate legal assurance level for every document. |
| Free integrated identity verification | Reduces costs while strengthening trust and compliance. |
| Real-time signing status | Allows you to monitor every step of the signing process and speed up the completion of agreements. |
| Browser-based and mobile signing | Enables secure signing from any device without the need to install software. |
| Pay-per-use or signature packages | Offers pay-per-use pricing and signature packages, tailored to your needs. |
| Swiss and EU legal compliance | Supports signing processes that comply with ZertES and eIDAS. |
Rather than forcing users through complex signing procedures, DeepSign focuses on making legally compliant signing simple for both internal users and external customers.
Checklist: How to choose the right digital signature solution
Before making your decision, ask these questions:
- Is the solution compliant with ZertES?
- Does it also support eIDAS requirements for European business?
- Which signature levels (SES, AES, QES) are available?
- Can users sign without installing software?
- Is the signing experience intuitive on desktop and mobile?
- Does the solution include identity verification or is it charged separately?
- Can pricing scale with your business through pay-per-use or signature packages?
- Is every signature supported by a complete audit trail?
- Can the solution integrate with existing HR, CRM or ERP systems?
- Does the provider meet your organisation’s security and compliance requirements?
At a glance: selection criteria
| Requirement | What to look for |
| Legal validity | ZertES-compliant signature levels |
| User experience | Fast, intuitive signing process |
| Security | Identity verification and audit trail |
| Flexibility | SES, AES and QES support |
| Integration | APIs and workflow automation |
| Scalability | Suitable for SMEs and enterprises |
Frequently asked questions
Which digital signature is legally recognised in Switzerland?
Qualified Electronic Signatures (QES) are legally equivalent to handwritten signatures under ZertES when the law requires written form. Depending on the use case, SES and AES may also be appropriate.
Is a qualified signature always necessary?
No. Many business documents can be signed using a Simple or Advanced Electronic Signature. The appropriate signature level depends on the legal and business requirements.
Can users sign documents without installing software?
Yes. Modern cloud-based digital signature solutions allow users to review and sign documents securely through a web browser on desktop or mobile devices.
Is identity verification included in every digital signature solution?
No. Some providers use third-party identity verification or charge an additional fee for identity checks. This can make the signing process less seamless and create a barrier to adoption if signers are expected to pay. Integrated identity verification helps deliver a smoother and more accessible signing experience.
Can digital signature pricing scale with business needs?
Yes. Some providers offer flexible pricing models, such as pay-per-use for occasional signing or signature packages for higher volumes. This allows organisations to align costs with actual usage instead of committing to fixed subscription plans.
What should organisations prioritise when choosing a digital signature provider?
Beyond legal compliance, organisations should evaluate ease of use, security, identity verification, audit trails, integration capabilities and support for Swiss regulatory requirements.
