Thomas Moretti, axelity ag
Co-founder and Managing Director of axelity ag | Product strategist of the Swiss signing solution actaSIGN®
HR Documents in Switzerland: Which Electronic Signature Do You Really Need?
Employment contracts, terminations, non-compete clauses, vacation requests — a lot gets signed in HR. And increasingly, digitally. But be careful: not every electronic signature is suitable for every document. Anyone who "signs" a non-compete clause with a single click in a portal has, legally speaking, agreed to nothing. The clause is then simply invalid [5].
The good news: Swiss employment law is more digital-friendly than many people think. Most HR documents may be signed electronically with any signature level. You just need to know where the exceptions lie. That is exactly what this article shows — with an overview of the most important document types and the signature level that fits each one.
Important: Status: 22 July 2026. This article is a general informational overview and is not legal advice for individual cases. Companies should involve their legal department or external counsel for concrete situations.
The Short Rule
The decisive question is not "Are electronic signatures allowed?" but "Which form requirement applies to this particular document?" In Switzerland, this results in three cases:
- No form requirement (the normal case): The law requires no particular form (Art. 320(1) OR [1]). Simple (SES) or advanced (AES) electronic signatures are legally sufficient — the choice is a question of evidentiary value.
- Statutory written form: The law requires written form with a signature (Art. 13 OR [1]). Electronically, only the qualified electronic signature (QES) of a provider recognised in Switzerland satisfies this (Art. 14(2bis) OR [1]).
- Contractually agreed written form: If the employment contract contains a clause such as "amendments and terminations require written form", the same rules apply to those documents as for statutory written form — that is, QES (Art. 16 OR [1]). This is the biggest pitfall in practice (more on this below).
An important difference from Germany: Switzerland has not a single HR document that must mandatorily be issued on paper. Even a termination may be declared electronically — as long as there is no written-form clause in the contract. In return, Switzerland is stricter about replacing the signature: only the QES under Swiss law counts, and it must be combined with a qualified timestamp [9].
The Three Signature Levels in Brief
SES — simple electronic signature. The base level: a typed name line, a click on "Sign", a confirmation in a portal. Fast and perfectly sufficient for form-free routine documents. However, the proof of who actually signed is weak.
AES — advanced electronic signature. This signature is uniquely linked to a person, enables their identification, and makes subsequent changes to the document detectable (Art. 2 ZertES [2]). It therefore offers considerably better evidentiary value than the SES. Important: the AES too does not satisfy the statutory written form.
QES — qualified electronic signature. The highest level. It is based on a qualified certificate from a Swiss provider recognised by the state and is combined with a qualified timestamp. Only this combination is legally equivalent to a handwritten signature (Art. 14(2bis) OR [1]). The identity of the signing person is verified in advance, for example via ID verification.
Three points that are often overlooked in practice:
- The qualified timestamp is mandatory. A QES without a qualified timestamp does not satisfy the written form [9].
- Scanned signatures do not satisfy the written form. Scanning a signature and inserting it into a PDF does not create valid written form — no more than an email or an SES/AES does.
- A QES from the EU (under the eIDAS Regulation) is not sufficient in Switzerland. Switzerland and the EU still do not mutually recognise their signatures [8]. What matters is solely recognition under the Swiss Federal Act on Electronic Signatures (ZertES [2]). Currently four providers are recognised: DigiCert Switzerland, Swisscom, SwissSign, and the Federal Office of Information Technology (only for the federal administration) [8]. Some providers are dually qualified — what is decisive is the Swiss recognition. Any signature can be checked free of charge via the federal validator [10].
The Overview: Which HR Document Needs Which Signature?
Legend: ✅ = legally valid · ❌ = does not satisfy the required form · Basis: Code of Obligations (OR) [1], unless otherwise stated.
Category 1: Routine documents with no form requirement — SES is sufficient
| Document type | SES | AES | QES | Basis / Note |
|---|---|---|---|---|
| Vacation requests and approvals | ✅ | ✅ | ✅ | Form-free (Art. 320(1) OR [1]) |
| Expense claims (individual claim) | ✅ | ✅ | ✅ | Form-free — not to be confused with a lump-sum expense allowance (Category 3!) |
| Time-tracking confirmations | ✅ | ✅ | ✅ | Form-free |
| Acknowledgements of receipt (regulations, directives, IT policies) | ✅ | ✅ | ✅ | Form-free; documented receipt is sufficient |
| Onboarding checklists, equipment handovers | ✅ | ✅ | ✅ | Form-free |
| Training and attendance confirmations | ✅ | ✅ | ✅ | Form-free |
Category 2: Form-free but evidence-relevant — AES recommended as the standard
| Document type | SES | AES | QES | Basis / Note |
|---|---|---|---|---|
| Employment contract (permanent or fixed-term) | ✅ | ✅ | ✅ | Form-free (Art. 320(1) OR [1]). But: if the contract contains a form-bound clause — typically the non-compete — the entire contract should be signed with QES (see Category 3) |
| Contract amendments (salary, role, workload) | ✅ | ✅ | ✅ | Form-free — unless the contract contains a written-form clause (see the pitfall below) |
| Ordinary termination | ✅ | ✅ | ✅ | Form-free (Art. 335(1) OR [1]); written reasons only upon request. Caution: with a written-form clause in the contract or a collective bargaining agreement, QES applies! Delivery of the termination must be provable — hence at least AES |
| Immediate termination (for cause) | ✅ | ✅ | ✅ | Form-free (Art. 337 OR [1]); because of the high litigation risk, provability is central |
| Termination agreement | ✅ | ✅ | ✅ | Form-free; however, the courts require a clear intention to waive and genuine concessions from both sides. Watch for a written-form clause |
| Objective agreements, bonus arrangements | ✅ | ✅ | ✅ | Form-free; evidence-relevant for salary claims |
| Non-disclosure agreement (NDA) | ✅ | ✅ | ✅ | Form-free. Distinction: if the NDA contains a post-contractual non-compete or non-solicitation clause, that clause requires written form — then QES |
| Continuing-education agreements with repayment clause | ✅ | ✅ | ✅ | Form-free; AES recommended |
| Home-office agreements | ✅ | ✅ | ✅ | Form-free — unless they contain a lump-sum expense allowance (then QES, Art. 327a(2) OR [1]) |
| Data-protection consents | ✅ | ✅ | ✅ | Form-free; for particularly sensitive personal data the consent must be "explicit" — which does not mean in writing, but well documented |
| Garden-leave declarations | ✅ | ✅ | ✅ | Form-free; watch for a written-form clause |
Category 3: Statutory written form — electronically only with Swiss QES
Here the law requires written form. Clauses agreed in breach of form are void or are replaced by the (usually more employee-friendly) statutory rule. The signature must come from all persons who undertake an obligation (Art. 13 OR [1]) — electronically, that means: QES for both parties.
| Document type / clause | SES | AES | QES | Basis / Note |
|---|---|---|---|---|
| Post-contractual non-compete clause — also as a clause within the employment contract | ❌ | ❌ | ✅ | Art. 340(1) OR [1]. The Federal Supreme Court is clear: without valid written form, the non-compete clause is void (BGE 145 III 365 [5]). Its scope — geographic, temporal, and by subject matter — must also emerge from the written agreement. The most important QES case in everyday HR |
| Post-contractual non-solicitation clause | ❌ | ❌ | ✅ | Treated legally like the non-compete clause (Art. 340(1) OR [1]) |
| Amendment of the probation period (shorten, extend, exclude) | ❌ | ❌ | ✅ | Art. 335b(2) OR [1]; maximum 3 months |
| Amendment of the notice periods | ❌ | ❌ | ✅ | Art. 335c(2) OR [1] |
| Contracting out overtime compensation (pay or the 25% surcharge) | ❌ | ❌ | ✅ | Art. 321c(3) OR [1]. Only the waiver of payment requires written form; compensation through time off can be agreed form-free |
| Deviating continued salary payment in case of illness (e.g. daily-sickness-benefit solution) | ❌ | ❌ | ✅ | Art. 324a(4) OR [1]; in addition, the solution must be at least equivalent for the employees |
| Lump-sum expense allowances and per diems | ❌ | ❌ | ✅ | Art. 327a(2) OR [1]. Often overlooked — for example in home-office arrangements |
| Reservation of employees' inventions ("incidental inventions") | ❌ | ❌ | ✅ | Art. 332(2) OR [1]; must be agreed in writing at the conclusion of the contract |
| Deferral of commission maturity | ❌ | ❌ | ✅ | Art. 323(2) OR [1]; likewise commission arrangements at the end of the contract (Art. 339(2) OR) |
| Deviating arrangement of the severance payment | ❌ | ❌ | ✅ | Art. 339c OR [1] |
| Apprenticeship contract | ❌ | ❌ | ✅ | Art. 344a(1) OR [1] — the entire contract is valid only in writing. In addition, the cantonal authority must approve the contract; depending on the canton, this step still runs on paper forms |
| Commercial traveller's contract | ❌ | ❌ | ✅ | Art. 347a OR [1]. Peculiarity: if the written form is missing, the contract is not invalid — but the statutory and customary conditions then apply. QES strongly recommended |
| Collective bargaining agreement (GAV) — conclusion, amendment, cancellation, termination | ❌ | ❌ | ✅ | Art. 356c(1) OR [1] |
| Staff leasing: employment contract with temporary staff | ❌ | ❌ | ✅ | Art. 19 Employment Services Act (AVG) [3], with a legally prescribed minimum content. Exception only in cases of time urgency (with subsequent written confirmation). If written form is missing, the locally and professionally customary conditions apply — and fines may be imposed [11] |
| Staff leasing: leasing contract with the client company | ❌ | ❌ | ✅ | Art. 22 AVG [3] |
| Federal personnel: employment contract as well as any amendment, fixed term and termination | ❌ | ❌ | ✅ | Art. 8 and 13 Federal Personnel Act (BPG) [4] — written form as a validity requirement. Cantons and municipalities have their own personnel acts with their own form rules |
| Terminations and amendments under contracts with a written-form clause | ❌ | ❌ | ✅ | Art. 16 OR [1] — see the next section |
Special case: employment reference (Arbeitszeugnis)
The employment reference (Art. 330a OR [1]) must, according to the prevailing view in legal literature, be issued signed. Whether a purely electronic reference with QES is sufficient has not yet been conclusively settled by the courts. Our recommendation: issue it electronically with QES and, at the employee's request, additionally provide a paper copy.
The Biggest Pitfall: The Written-Form Clause in Your Own Contract
Almost every Swiss employment contract contains a sentence like: "Amendments and additions to this contract, as well as the termination, require written form."
This inconspicuous clause has real teeth. The law says two things about it (Art. 16 OR [1]):
- If the parties agreed on written form without describing it more precisely, the requirements of the statutory written form apply — that is, QES electronically.
- It is presumed that the agreed form is a validity requirement. A document that does not comply with the form is, in case of doubt, ineffective.
The Federal Supreme Court also applies these rules to unilateral declarations such as the termination (judgment 4A_601/2011 of 21 December 2011 [6]). And it has ruled that a party cannot unilaterally disregard the agreed form (BGE 128 III 212 [7]).
Concretely this means: the inherently form-free termination becomes a written-form document through your own contract clause. A termination signed only with SES or AES can then be invalid — with considerable consequences: deadlines do not run, the employment relationship continues, salary claims accumulate.
The way out is in the law itself: Art. 14(2bis) OR [1] expressly permits deviating contractual arrangements. Companies can therefore stipulate in the employment contract which signature level is sufficient. A suggested wording:
"Where this contract provides for written form, the advanced electronic signature (AES) is also sufficient. Agreements for which the law requires written form remain reserved."
The reservation in the second sentence is important: where the law requires written form (Category 3), the parties cannot lower it by a contract clause. There, the rule is always: QES or a handwritten signature.
What Happens in the Event of a Formal Defect?
The consequences of a formal defect almost always fall on the employer:
- The clause is void, the statutory rule applies. Example non-compete clause: if it was not validly agreed in the required form, it does not exist — the former employee is free to move to a competitor [5]. Example notice period: without a valid written agreement, the statutory periods apply.
- Even the employee's consent does not cure the defect. The form requirements in employment law protect employees; this protection cannot be waived casually.
- The defect only shows up in a dispute — that is, precisely when it matters. Often years after signing.
Recommendation: A Simple Signature Policy for HR
Four levels are enough to govern the signing process cleanly within the company:
| Level | Documents | Signature standard |
|---|---|---|
| 1 — Routine | Vacation requests, expense claims, acknowledgements of receipt | SES |
| 2 — Evidence-relevant | Employment contracts without form-bound clauses, objective agreements, NDAs, termination agreements | AES |
| 3 — Statutory written form | Non-compete clauses, deviations on probation period / notice periods / overtime / continued salary payment, lump-sum expense allowances, apprenticeship contracts, GAV, staff leasing | Swiss QES |
| 4 — Legacy contracts with a written-form clause | Terminations and amendments under existing contracts | QES — or modernise the contracts and expressly allow AES to suffice |
A pragmatic basic rule to go with it: if an employment contract contains even a single form-bound clause — most often the non-compete — sign the entire contract with QES. That is simpler and safer than handling individual clauses separately.
Four Typical Misconceptions
- "We use a signature tool, so we are legally compliant." The tool alone says nothing. What matters is whether the signature level fits the form requirement of the document.
- "The AES is almost as good as the QES — that will do." For the statutory written form there is no "almost". The AES does not satisfy it, full stop. But it is the right choice for the vast majority of form-free documents.
- "Our European QES is also valid in Switzerland." No. Without a recognition agreement between Switzerland and the EU, a pure eIDAS QES does not satisfy the Swiss written form [8]. What you need is the QES of a provider recognised under ZertES.
- "Terminations are form-free, so there's nothing to watch out for." Only if neither the employment contract nor a collective bargaining agreement contains a written-form clause. But that is precisely rare — check your contract templates.
Conclusion
Swiss employment law makes digitising HR easy — once you know the map. The vast majority of documents are form-free and can be signed with SES or AES. A manageable, clearly nameable group of agreements requires written form and therefore, electronically, the Swiss QES with a qualified timestamp. And your own written-form clause in the contract deserves a second look: it determines whether your terminations and contract amendments are digitally valid.
Anyone who sets up their contract templates cleanly once — define a signature policy, modernise written-form clauses, identify QES cases — then signs quickly, digitally, and with legal certainty.
This article reflects the legal status as of July 2026 and does not replace legal advice in individual cases. The research was carried out with the support of artificial intelligence; the legal bases cited were verified against the primary sources (Fedlex, Federal Supreme Court). The article was reviewed and edited by a natural person before publication.
Further Reading
- SES, AES, QES: the three signature levels explained
- Signature levels under ZertES and eIDAS: SES, AES, QES
- Qualified electronic signature (QES): the guide
- Electronic signature in Switzerland: legal framework and practice
- Digital HR processes with actaSIGN
- Request a demo
Sources
- Code of Obligations (OR, SR 220) — in particular Art. 13, 14(2bis), 16, 320, 321c, 323, 324a, 327a, 330a, 332, 335, 335b, 335c, 337, 339, 339c, 340, 344a, 347a, 356c
- Federal Act on Electronic Signatures (ZertES, SR 943.03)
- Employment Services Act (AVG, SR 823.11) — Art. 19 and 22; plus the AVV Ordinance (SR 823.111), Art. 48
- Federal Personnel Act (BPG, SR 172.220.1) — Art. 6, 8, 13, 34
- BGE 145 III 365 — written form of the non-compete clause
- BGer 4A_601/2011 / BGE 138 III 123 — form reservation for unilateral declarations (termination)
- BGE 128 III 212 — no unilateral deviation from the agreed form reservation
- BAKOM — Electronic signature, list of recognised providers
- Federal Office of Information Technology (BIT) — E-signature FAQ
- Federal signature validator
- SECO — Staff Leasing factsheet
- Vulpes — "Signed digitally, legally ineffective?"
- FG Arbeitsrecht — Angstmann, Written form in employment law (2022)
- Thouvenin Attorneys — Form requirements in employment law (2026)
- Walder Wyss — Employment News No. 74