Which Legal Form Is Best for a Side Business in Germany?

Which Legal Form Is Best for a Side Business in Germany?

Starting a business alongside your regular job can be a practical way to test an idea with less financial pressure. But “side business” or “Nebengewerbe” is not a legal form. You still need to choose a structure that fits the number of founders, the business risk, the available capital and your growth plans.

For many small, low-risk side businesses, an Einzelunternehmen is the simplest starting point. A GbR may suit two or more founders, while a UG (haftungsbeschränkt) or GmbH may be worth considering when liability protection becomes more important.

TL;DR

• Starting alone with limited risk: An Einzelunternehmen is often the simplest option.
• Starting with at least one partner: A GbR is easy to establish, but the partners can be personally liable.
• Need limited liability with modest starting capital: Consider a UG (haftungsbeschränkt).
• Building a larger or more formal company: A GmbH may offer a stronger structure, but it requires more capital and administration.
• Your employment contract, residence permit, insurance needs and tax situation must also be checked.

1. Einzelunternehmen: often the simplest starting point

An Einzelunternehmen, or sole proprietorship, is commonly used by people starting alone. There is no statutory minimum share capital, and the formation process is generally simpler than establishing a corporation.

It can be suitable when:

• you are the only founder;
• the business has manageable financial and legal risks;
• you want to test an idea before building a larger company;
• you prefer lower formation and administration costs.

The main disadvantage is liability: the business owner can be liable with both business and private assets.

Official overview: German Federal Ministry for Economic Affairs — Legal forms

2. GbR: a simple option for two or more founders

A Gesellschaft bürgerlichen Rechts (GbR) can arise when at least two people operate a business together for a shared purpose. It may be relatively easy to establish, but the partners can generally be personally liable for the partnership's obligations.

A written partnership agreement is strongly recommended. It should cover responsibilities, profit distribution, decision-making and what happens when a partner leaves.

Official comparison: German Federal Ministry for Economic Affairs — GbR or UG?

3. UG: limited liability with more administration

The Unternehmergesellschaft (haftungsbeschränkt) is a variant of the GmbH. It can be formed with a low registered share capital, legally starting from one euro. However, the capital should realistically cover the company's initial needs. Starting with too little money can quickly create liquidity or insolvency problems.

A UG usually involves:

• notarised formation;
• registration in the Commercial Register;
• proper annual financial statements;
• corporate tax and accounting obligations;
• a statutory profit reserve until the required capital level is reached.

It may suit a side business with higher contractual or financial risk, provided the extra administration is justified.

Official information: German Federal Ministry for Economic Affairs — UG (haftungsbeschränkt)

Legal basis: Section 5a of the German Limited Liability Companies Act

4. GmbH: stronger structure, higher setup requirements

A Gesellschaft mit beschränkter Haftung (GmbH) is a well-established limited-liability company. It can be suitable when the side business is expected to grow, employ staff, take on investors or enter into larger contracts.

The statutory share capital is €25,000. Formation requires a notary and registration in the Commercial Register. A GmbH also brings more extensive accounting, disclosure and compliance duties than a typical sole proprietorship.

For a very small side business, this structure may be unnecessarily costly. It becomes more relevant when liability protection, credibility and growth justify the added work.

Legal basis: Section 5 of the German Limited Liability Companies Act

Do not choose based on liability alone

Limited liability is important, but it is not absolute protection. Personal guarantees, breaches of duty, unpaid share capital and certain tax or insolvency obligations can still create personal exposure.

Before choosing a structure, consider:

• expected turnover and profit;
• possible customer claims or contractual risks;
• whether you are starting alone or with partners;
• bookkeeping and annual-account costs;
• how much capital the business genuinely needs;
• whether you plan to employ people or seek investment.

Check your employment contract and residence permit

Employees should review their employment contract before starting a side business. Notification or approval may be required, especially where the activity competes with the employer, affects work performance or creates a conflict of interest.

Guidance: IHK Hannover — Starting a side business

Non-EU citizens should also verify whether their residence permit allows self-employment. Business registration does not automatically grant immigration permission.

Official immigration guidance: Federal Office for Migration and Refugees — Self-employment and freelancing

So, which form is best?

There is no single legal form that is best for every side business.

• Choose an Einzelunternehmen when you are starting alone, the risks are limited and simplicity matters.
• Consider a GbR when two or more people are starting together and understand the personal-liability implications.
• Consider a UG when limited liability is important and you accept the additional corporate administration.
• Consider a GmbH when the business has greater capital, risk, credibility or growth requirements.

The cheapest structure at the beginning is not always the most economical structure over the long term. A short professional review can help you avoid expensive changes later.

Need help choosing?

Your profession, residence status, expected revenue, liability exposure and growth plans should be considered together.

Book a consultation with ExpatBusiness.de

Note: This article provides general information and does not replace individual legal, tax or immigration advice.