Chapter 6 · Swiss legal forms
Legal Forms in Switzerland: Sole Proprietorship, GmbH, or AG
Anyone starting a company in Switzerland will, in practice, usually end up deciding between one of three legal forms: sole proprietorship, GmbH, or AG.
The right choice depends on liability, capital, team structure, external credibility, growth plans, and administrative burden — not on prestige.
Why the legal form matters so much
The legal form influences, among other things:
- liability
- capital needs
- external perception
- ownership logic
- complexity of formation
- part of the administrative burden
If you choose the wrong legal form, you often pay twice later.
The three main options
Sole proprietorship
This is the leanest form for an individual founder.
Typical features: simple structure, not the same separate company logic as a capital company, personal exposure is more direct, often useful for lean solo starts.
Typically suitable for freelancers, consultants, small service businesses, and early testing stages.
GmbH
The GmbH is often the standard legal form for small and medium-sized businesses in Switzerland.
Typical features: separate legal company structure, liability limitation at company level, share capital, more formal setup, often useful for teams and more professional external positioning.
Typically suitable for small businesses, agencies, SaaS and digital companies, and teams with clearer ownership logic.
AG
The AG is the more formal and more capital-heavy structure.
Typical features: separate legal company structure, higher capital requirements than a GmbH, more formal governance logic, often more investor-oriented.
Typically suitable for growth-oriented companies, ambitious ownership structures, and more advanced funding expectations.
How to choose the right legal form
Question 1: How large is the liability risk? If the business carries significant risk, direct personal exposure becomes a real issue.
Question 2: Are you starting alone or as a team? Solo starts are often simpler. Teams need cleaner structure earlier.
Question 3: How important is professional external credibility? Some customers, partners, and investors expect a more formal company form.
Question 4: How much capital is realistic? Capital companies require more structure and more capital.
Question 5: How likely are investors or later ownership rounds? That is one of the reasons AG can become relevant.
Question 6: How much administration do you realistically want? Not every business needs the heaviest structure from day one.
| Feature | Sole proprietorship | GmbH | AG |
|---|---|---|---|
| Best when | You start alone, risk is limited, you offer a simple service, you want to test leanly. | You want liability limitation, cleaner structure or a team setup, a professional legal vehicle. | Investors are realistically part of the path, ownership structure will become advanced, governance setup matters early. |
| Strengths | Fast, simple, more cost-efficient, good for lean starts. | Strong balance between structure and practicality, liability limitation, suitable for SMEs and many early startups. | Formal and credible, stronger for larger ambitions and ownership logic, often seen as more investor-friendly. |
| Weaknesses | More direct personal risk exposure, weaker scaling logic, less formal perception in some situations. | Capital requirement, more formal than a sole proprietorship, less lean. | More capital, more formal requirements, often excessive for very small early setups. |
| Liability | Personal liability — founder carries it directly. | Limited at company level. | Limited at company level. |
| Capital | No formal share capital required. | Minimum CHF 20,000 share capital, fully paid in. | Minimum CHF 100,000 (at least CHF 50,000 paid in). |
When each one often makes sense
Sole proprietorship often makes sense when
- you start alone
- risk is limited
- you offer a simple service
- you want to test leanly
GmbH often makes sense when
- liability should be limited
- you want cleaner structure or a team setup
- you need a professional legal vehicle
AG often makes sense when
- investors are realistically part of the path
- the ownership structure will likely become more advanced
- professional capital and governance setup matter early
Why prestige is a weak decision criterion
Many founders are attracted to AG because it sounds bigger. That is not a valid decision principle.
The real question is not: which form sounds the most impressive?
The real question is: which structure fits risk, model, capital, and stage?
What comes after choosing the legal form
After the choice, founders typically move into:
- final naming
- founder and ownership setup
- formation documents
- registration process
- bank account, bookkeeping, VAT, insurance
Frequently asked questions
Quick answers to the questions founders ask most.
Which legal form is most common for startups in Switzerland?
Often sole proprietorship or GmbH in early phases. AG becomes more relevant when growth, investors, or more formal ownership structures matter.
Is the GmbH always the best default?
No. It is often suitable, but not always. Stage and risk matter.
Can I later move from a sole proprietorship to a GmbH or AG?
In many cases structures can later be changed, but that creates friction and should not be treated as a free shortcut.
Is AG automatically better for investors?
Often more attractive from a later ownership and governance perspective, but many founders do not need it early.
What is the biggest mistake in choosing the legal form?
Confusing prestige with fit.
What should I read next if I need to decide now?
The detailed pages on sole proprietorship, GmbH, and AG, followed by the Swiss formation page.