Convert Sole Proprietorship to GmbH: Process & Tips
Introduction: Why the transformation is worthwhile
Converting a sole proprietorship into a limited liability company (LLC) is a smart move in Switzerland when your business is growing or you want to reduce personal liability. The process is governed by the Swiss Code of Obligations (OR), Art. 772-827.
Compared to a sole proprietorship, an LLC offers:
- Limited liability - capped to company assets, not your personal wealth
- Higher credibility with Swiss clients, banks and partners
- Clear separation of private and business assets
- Better structure for growth or bringing on new shareholders
Not sure yet whether an LLC is the right choice? Read our Quick Read: Sole Proprietorship or LLC in Switzerland - Key Differences.
Requirements for converting a Sole Proprietorship into a GmbH
Before you convert your sole proprietorship, a number of legal and financial requirements must be met.
Overview of important requirements
- Share capital: At least CHF 20,000, paid in full (cash or contribution in kind).
- Shareholder: At least one natural or legal person.
- Statutes: Must regulate the purpose, share capital, shareholders and organization of the GmbH.
- Transfer of assets: Assets and liabilities of the sole proprietorship can be contributed in kind or by transfer of assets.
- Commercial register entry: The GmbH must be entered in the cantonal commercial register.
Important: The sole proprietorship does not automatically expire legally. It must be deleted separately after registration of the GmbH.
Common Mistakes Swiss Entrepreneurs Make
Many entrepreneurs underestimate the effort or make formal mistakes. Typical stumbling blocks include:
- Forgetting to deregister the sole proprietorship - it continues to exist legally until actively dissolved
- Incorrect articles of association - the cantonal register will reject the submission
- Underestimating share capital - CHF 20,000 must be fully paid in, not just pledged
- Missing AHV or MWST notifications - results in retroactive penalties
- Contracts not updated - agreements signed under your personal name do not automatically bind the new LLC
- Ignoring cantonal differences - notary procedures, tax registration and timing vary significantly between Zurich, Zug, Basel and other cantons
These errors could result in delays, additional costs, or tax issues.
Step-by-step: This is how the transformation is successful
- Create an opening balance sheet: You record the assets and liabilities of your sole proprietorship.
- Valuation of assets: Depending on the case, by a trustee or auditor (particularly in the case of contributions in kind).
- Create statutes & founding documents: Legally correct and tailored to your situation.
- Deposit share capital: Cash or in kind, including bank or audit confirmation.
- Notarial certification: The GmbH must be established by a notary.
- Entry in the commercial register: The GmbH is only legally established upon entry.
- Reports to authorities: AHV, tax office, VAT (if relevant).
- Deletion of the sole proprietorship: After successful GmbH registration.
Tax Implications in Switzerland
Switching from sole proprietorship to LLC has direct tax consequences. As a sole proprietor, you pay income tax and AHV contributions (approx. 10%) on net profit. As LLC managing director, you draw a salary subject to employee income tax and AHV, while the LLC pays corporate profit tax.
Depending on your canton and profit level, the LLC structure can be significantly more tax-efficient. Our tax advisors can assess which structure is optimal for your situation.
Accounting Obligations After Conversion
As an LLC under Swiss OR, double-entry bookkeeping is mandatory - a balance sheet, income statement and notes must be prepared annually. Our fiduciary and accounting services ensure your new LLC is compliant from day one.
How MKY Supports the Conversion?
At MKY Treuhandpartner GmbH, we guide Swiss SMEs through the full conversion process - from the opening balance sheet through to commercial register registration and authority notifications. We ensure your new LLC is structured optimally for tax and accounting from day one.
Ready to convert? Book a free consultation below.
