Sole proprietorship or Swiss LLC: when should you change structure?

A sole proprietorship appeals through its simplicity. A Swiss limited liability company (Sàrl) promises a clearer separation between the business and its owner. Entrepreneurs often hear of a supposed turnover threshold beyond which they “must” switch. No such threshold exists.

The right time depends less on invoiced volume than on the risk borne, sustainable profits, the money the owner-manager needs privately, the desired social insurance cover and development plans. An LLC may make sense for a small but risky activity, while a sole proprietorship can remain rational with high turnover and few commitments.

The decision must therefore be based on figures and facts. The logo on the door, however elegant, pays neither social contributions nor the notary.

Sole proprietorship and LLC: what actually changes

Five signs that warrant a proper analysis

1. Business risk can no longer be borne privately

A substantial commercial lease, employees, customer advances, work capable of causing damage, major contractual commitments or a regulated activity increase exposure. The separation offered by an LLC then becomes a serious argument.

However, a persistent misconception needs correcting: “limited liability” does not mean “no liability.” A bank, landlord or supplier may request a personal guarantee. Managers may also be liable for their own conduct when they breach their duties, and certain rules directly protect creditors or social insurance institutions. An LLC reduces risk; it does not turn recklessness into strategy.

2. Part of the profit can remain in the business over the long term

In a sole proprietorship, net profit is attributed to the owner for tax purposes whether the money is withdrawn or left in the business account. In an LLC, the manager’s salary and related social charges reduce the company’s profit; the balance is taxed at company level and can be retained to fund recruitment, equipment or a liquidity reserve.

This mechanism can smooth the personal tax burden when profit repeatedly exceeds private needs. It does not create free money, however: a later dividend distribution is taxable for the member, although partial taxation of qualifying holdings mitigates the double burden. The company also bears its own administrative and tax costs.

3. Pensions and social protection need structure

Switching to an LLC makes the owner-manager an employee of their own company. This allows occupational pensions, accident insurance and, where needed, daily sickness benefits to be arranged within an employment framework. These forms of cover cost money, but address real risks.

Two qualifications are often forgotten. First, a self-employed person can also voluntarily join a pension institution and take out suitable insurance. Second, an LLC’s managing member pays unemployment insurance contributions but normally cannot claim benefits while retaining decisive influence. A payslip is therefore not an automatic safety net.

4. A partner, investor or successor is to join

A sole proprietorship has only one owner. To share capital, allocate voting rights or prepare for a successor, an LLC offers a much clearer framework. The articles of association and often a members’ agreement should address governance, share transfers, departures, incapacity and disputes.

There is a counterargument: transferring membership shares in an LLC is more formal than selling ordinary shares in a Swiss corporation (SA) and generally requires approval by the members’ meeting, unless the articles provide otherwise. If the aim is to attract many investors or facilitate frequent transfers, an SA may be more appropriate than an LLC.

5. The business must be able to exist independently of its founder

A brand, a team, recurring contracts and documented processes gain value when held by a separate entity. An LLC generally helps continuity in the event of a sale, succession or the founder’s absence. It also forces cash flows to be clarified: the company’s bank account is not the member’s personal wallet.

False thresholds to dismiss

CHF 100’000 in turnover

This amount generally triggers the obligation to register a commercially operated sole proprietorship in the commercial register. It does not require an LLC to be created. It should not be confused with the CHF 500’000 threshold for ordinary accounting or with VAT liability rules.

A profit level fixed once and for all

There is no profit level above which an LLC is always cheaper. The result depends in particular on the canton and municipality, family circumstances, other income, appropriate salary, pensions, administrative costs and the share of profit that can remain in the company. Comparing tax rates alone is like comparing two cars while forgetting fuel, insurance and, incidentally, the road.

Commercial prestige

Some customers prefer to deal with an incorporated company. This is a legitimate commercial consideration, but rarely a sufficient justification on its own. A well-insured, properly capitalized and organized sole proprietorship can be more robust than an LLC formed with CHF 20’000 and then drained of its cash.

Switching to an LLC: more than an administrative conversion

Under civil law, a sole proprietorship does not directly change its legal form as an LLC converting into an SA would. A new LLC must be incorporated and the business then transferred to it. Depending on the circumstances, the transfer takes the form of a contribution in kind, an asset sale or, if the sole proprietorship is registered in the commercial register, a transfer of assets and liabilities under the Merger Act.

For tax purposes, the transfer may take place without immediate taxation of hidden reserves if all statutory conditions are met: continued tax liability in Switzerland, takeover at the latest tax values, transfer of a business or a distinct part of a business, and retention of the shares received for five years. Selling shares during this period at a price above the tax value of the transferred equity may trigger a proportionate retrospective tax charge.

Tax neutrality is therefore neither automatic nor merely an accounting matter. Individual assets, real estate, an activity without a genuine organization, significant hidden reserves or an impending sale require specific analysis. For significant cases, a tax ruling may be advisable before signing the documents.

A practical method in eight steps

1. Prepare an overall comparison across two or three financial years: normalized profit, private needs, investments, pensions, taxes and administrative costs.
2. Map the risks: contracts, employees, guarantees, potential disputes, debts, insurance and long-term commitments.
3. Choose a transfer date. A financial year-end often makes the process easier, but is not mandatory. Above all, avoid an improvised switch in the middle of invoicing and payroll.
4. List the items to transfer: cash, receivables, work in progress, equipment, vehicles, debts, contracts, intellectual property and permits.
5. Incorporate the LLC by public deed, pay up the capital, adopt the articles, appoint managers and arrange representation.
6. Address the legal, accounting and tax aspects of the transfer, including VAT and any transfer of employment relationships.
7. Set up employer status: AVS, family allowances, accident insurance, occupational pensions where the conditions are met, payroll and salary certificates.
8. Close the sole proprietorship properly: final accounts, cancellation or amendment of registrations, information to customers and suppliers, new contracts, bank details and business documents.

The opposing view: remaining a sole proprietorship may be the right choice

An activity carried out alone, with low risk, fluctuating profits largely used by the household and no plans to bring in partners can remain efficiently organized as a sole proprietorship. A simple tax return, freedom to make withdrawals and lower fixed costs have real economic value.

In that case, priorities may lie elsewhere: robust general terms, suitable insurance, strict separation of bank accounts, reliable accounting, voluntary pension provision and a continuity plan. Changing structure solely because it “looks more serious” sometimes replaces a concrete problem with a pile of equally serious formalities.

Frequently asked questions

Must I create an LLC once turnover reaches CHF 100’000?

No. This threshold generally concerns mandatory registration of a sole proprietorship in the commercial register. It does not require a change of legal form.

Is the CHF 20’000 share capital lost?

No. It is blocked during incorporation and then becomes the LLC’s funds after registration. The company may use it for business expenses and investments, but the member cannot freely take it back for private use.

Does an LLC fully protect my private assets?

No. The company is generally liable for its debts, but a personal guarantee, management fault, an unlawful act or certain statutory liabilities may affect the manager. Limited liability must be complemented by diligent management and adequate insurance.

Is switching to an LLC automatically tax-neutral?

No. Neutrality depends in particular on transferring a business or distinct part of one, taking it over at tax values, maintaining Swiss tax liability and respecting a five-year holding period for the shares received.

What is the best time of year to switch?

The start of a financial year or a closing date often simplifies the separation of accounts. However, it is better to act before hiring, a major contract, a partner’s arrival or a sale, even if the accounting date is less neat. The transaction should be planned several weeks ahead.

Official sources

• SECO SME Portal — Legal form: sole proprietorship
• SECO SME Portal — Legal form: limited liability company (Sàrl)
• Fedlex — Code of Obligations (CO)
• Fedlex — Merger Act (LFus in French)
• Fedlex — Federal Act on Direct Federal Tax, Article 19
• Federal Tax Administration — Circular No. 5a “Restructurings”
• Federal Social Insurance Office — Self-employment and social insurance cover
• SECO SME Portal — Unemployment insurance and employer-like status
• Fedlex — VAT Act, in particular Article 38

Editorial date: February 27, 2026. Last legal review: September 1, 2026.