“Should I start as an Einzelunternehmen or go straight to GmbH?” This is the first question every Austrian founder asks, and the answer I usually give is unsatisfying: it depends. But it depends on specific, identifiable factors—and once you understand those factors, the decision becomes straightforward.
I’ve operated under multiple Austrian legal structures over my career. I’ve advised founders through Startup Burgenland on which structure fits their situation. And I’ve watched founders choose the wrong structure and spend years dealing with the consequences.
The Austrian legal framework for businesses is more nuanced than most other European countries, with options that don’t directly translate to US or UK equivalents. That complexity can be an advantage—if you understand it.
The Menu: Austrian Business Structures
Here’s every relevant option, from simplest to most complex:
Einzelunternehmen (Sole Proprietorship)
The simplest structure. You are the business. No legal separation between personal and business assets.
Advantages: No minimum capital. Minimal paperwork to start—just register your Gewerbe at the local Bezirkshauptmannschaft or Magistrat. Simple accounting (Einnahmen-Ausgaben-Rechnung) if below the revenue thresholds. Full control over all decisions. Potentially eligible for Kleinunternehmerregelung (small business exemption) if under €35,000 net revenue.
Disadvantages: Unlimited personal liability—your personal assets are at risk if the business fails. SVS (Sozialversicherung der Selbständigen) contributions are mandatory and can be unpredictable in the first years. Higher marginal tax rates at higher income levels compared to corporate tax. Perceived as less “serious” by some investors and enterprise clients.
Best for: Solo consultants, freelancers, service providers, very early-stage testing of a business idea. When liability risk is low and you want minimum overhead.
GmbH (Gesellschaft mit beschränkter Haftung)
Austria’s equivalent of an LLC. The most common structure for startups seeking growth.
Advantages: Limited liability—personal assets are protected (with important exceptions). Corporate tax rate of 23% (as of 2026) on profits, which is lower than top personal income tax rates. Perceived as credible by clients, investors, and partners. Clearly defined ownership structure for multiple founders or investors. Easier to raise investment.
Disadvantages: Minimum share capital of €10,000 (half must be paid in at founding, with a reduced minimum of €5,000 for the first 10 years—the “Gründungsprivileg”). Annual financial statements required. Higher administrative overhead—Notariatsakt for founding, entry in the Firmenbuch, potentially more complex accounting. Geschäftsführer (managing director) has personal liability in certain circumstances, despite the “limited” label.
Best for: Startups planning to grow, raise investment, hire employees, or operate in areas with meaningful liability risk.
Flexible Kapitalgesellschaft (FlexKapG)
Austria’s newest business form, introduced to give startups more flexibility than a traditional GmbH.
Advantages: More flexible share structures (Anteilsklassen with different rights). Easier employee participation schemes (Unternehmenswertanteile for employee equity). Lower formality requirements than traditional GmbH in some areas. Designed specifically for startup needs.
Disadvantages: Relatively new—less established legal precedent. Not all advisors and lawyers are familiar with it yet. Some banks and partners may be unfamiliar with the form. Same minimum capital requirements as GmbH.
Best for: Startups planning to issue employee equity or that need flexible share classes from the start.
OG (Offene Gesellschaft) / KG (Kommanditgesellschaft)
Partnership structures. OG has all partners with unlimited liability. KG has at least one general partner with unlimited liability and limited partners with liability capped at their contribution.
Advantages: No minimum capital. Tax transparency (profits taxed at partner level, not entity level). KG allows silent/limited partners without management involvement.
Disadvantages: At least one partner has unlimited personal liability. Complex partner dynamics. Less attractive for institutional investors.
Best for: Professional partnerships (lawyers, consultants), family businesses, specific tax planning situations. Rarely the right choice for tech startups.
The Decision Framework
Rather than analyzing every factor, here’s the practical decision tree I use with founders:
Question 1: Is your liability risk meaningful? If your business could generate debts, face lawsuits, or create damages that exceed what you can afford to lose personally → GmbH or FlexKapG. If your business is low-risk services with no significant liability exposure → Einzelunternehmen is fine to start.
Question 2: Will you raise external investment? If yes, now or within 2 years → GmbH or FlexKapG. Investors want clear share structures and limited liability. If no → Einzelunternehmen or GmbH depending on other factors.
Question 3: Do you have co-founders? If yes → GmbH or FlexKapG. Clear ownership structure, dispute resolution mechanisms, and exit provisions are essential with multiple founders. I’ve seen partnerships without proper legal structure destroy both the business and the friendship. If no → Any structure works; choose based on other factors.
Question 4: What’s your expected revenue? Under €35,000/year → Einzelunternehmen with Kleinunternehmerregelung (no USt obligation, simpler administration). €35,000-€80,000/year → Einzelunternehmen is still viable; GmbH becomes attractive when the tax differential favors it. Over €80,000/year → GmbH is typically more tax-efficient because the corporate rate (23%) plus distribution tax is lower than the top personal rate (50%).
Question 5: Do you need employee equity? If yes → FlexKapG was designed for this. Traditional GmbH employee participation is clunky. If no → Standard GmbH is well-established and widely understood.
Most founders at Startup Burgenland started with either an Einzelunternehmen (for solo founders testing ideas) or a GmbH (for funded startups with co-founders). The GmbH was the right call for roughly 80% of serious startup ventures.
The GmbH Full Breakdown
Since most growth-oriented startups end up as GmbHs, let me detail the practical considerations:
Founding costs: Notary fees for the Gesellschaftsvertrag (articles of association) typically run €1,000-€3,000. Firmenbuch entry fee is around €300-€400. Add legal advice if you want a customized Gesellschaftsvertrag rather than a template: €1,000-€3,000. Total founding cost: €2,500-€7,000.
Capital requirement: €10,000 minimum (with €5,000 Gründungsprivileg for the first 10 years). This can come from cash, assets in kind (Sacheinlagen), or a combination. The cash portion must be paid into the company’s bank account before or at founding.
Annual costs: Minimum Körperschaftsteuer of €500/year regardless of profit (the “Mindestkörperschaftsteuer”). Annual financial statements preparation: €2,000-€5,000 depending on complexity and your Steuerberater. SVS for the Geschäftsführer if they’re also a shareholder: depends on income. Firmenbuch filing of annual statements: ~€30.
Geschäftsführer personal liability: Despite “limited liability,” the Geschäftsführer (managing director) can be personally liable for: unpaid taxes and social contributions, acting contrary to the Gesellschaftsvertrag, continuing operations when the company is insolvent (the “Insolvenzverschleppung” risk). This is the most under-appreciated legal risk for Austrian startup founders.
Tax mechanics: The GmbH pays 23% Körperschaftsteuer on profits. When profits are distributed to shareholders, they pay 27.5% KESt (capital gains tax). The combined effective rate on fully distributed profits is approximately 44.2%—comparable to the top personal income tax rate but with the advantage of deferring distribution tax by retaining profits in the company.
Practical Tips from Experience
Start simpler than you think. If you’re a solo founder testing an idea, start as Einzelunternehmen. You can convert to GmbH later (through “Umgründung”) if the business succeeds. The conversion process costs €3,000-€8,000 but it’s straightforward. Many successful Austrian startups started this way.
Get the Gesellschaftsvertrag right. If you’re founding a GmbH with co-founders, don’t use the template from the Notary without modification. Key clauses to negotiate: Vorkaufsrecht (pre-emption rights), Mitverkaufsrecht/-pflicht (tag-along/drag-along), Aufgriffsrecht (forfeiture provisions), Wettbewerbsverbot (non-compete), and dispute resolution mechanisms. Pay a lawyer for this. The €2,000-€3,000 you spend now prevents €50,000+ disputes later.
Understand SVS timing. SVS contributions for self-employed individuals are initially calculated on a low base (often the minimum) and then adjusted retroactively once your actual income is assessed—sometimes 2-3 years later. This creates a “SVS shock” when the back-payment arrives. Budget for it from day one.
Use the Neugründungsförderungsgesetz (NeuFöG). New business founders are exempt from various fees and duties in the first year—Gesellschaftsteuer, certain Kammerumlage, administrative fees. Make sure your founding documents reference NeuFöG eligibility. Your Steuerberater should handle this, but verify.
When I discussed the financial planning considerations for Austrian businesses, the legal structure choice was foundational to everything else—tax efficiency, liability protection, and operational flexibility all flow from this decision.
The Conversion Path
A common and sensible approach: start as Einzelunternehmen, grow the business, and convert to GmbH when the math supports it.
The conversion triggers I recommend watching for:
- Revenue exceeding €80,000/year (tax efficiency inflection)
- First significant contract with liability risk
- First co-founder or investor discussion
- First employee hire (liability protection becomes more important)
- Crossing the threshold where your personal income tax rate exceeds the combined GmbH rate
The conversion process (Einbringung gemäß Umgründungssteuergesetz) is tax-neutral if done correctly—meaning you don’t trigger tax on the transfer of assets from Einzelunternehmen to GmbH. This requires a Steuerberater who knows the UmgrStG. Don’t attempt it without professional guidance.
And if you’re using AI tools in your business, the structure decision affects how you handle AI-related costs—whether they’re personal expenses (Einzelunternehmen) or company expenses (GmbH), and how that affects your AI investment ROI calculations.
Takeaways
- Most growth-oriented Austrian startups should aim for a GmbH, but starting as an Einzelunternehmen and converting later is a valid and common path for solo founders testing ideas.
- The GmbH decision is driven by four factors: meaningful liability risk, plans to raise investment, having co-founders, and revenue above €80,000/year.
- Never use a template Gesellschaftsvertrag for a multi-founder GmbH—invest €2,000-€3,000 in a lawyer to negotiate proper pre-emption, tag-along/drag-along, and dispute resolution clauses.
- Budget for the SVS retroactive adjustment (“SVS shock”) from day one—contributions are initially calculated on low bases and adjusted upward 2-3 years later.
- The FlexKapG is worth considering if you plan employee equity participation, but the traditional GmbH remains the default for most startups due to its established legal precedent and familiarity.
