Choosing the legal form of a business is one of the first decisions that any individual or group planning to start an economic activity in Spain must make.
It is not a minor decision. The legal form affects important matters such as liability for debts, taxation, required capital, the entry or exit of shareholders, accounting and corporate obligations, the company’s image in the market and its capacity for growth. Therefore, before setting up a business, it is advisable to assess which structure best fits the project.
Starting an individual professional activity is not the same as setting up a company with several shareholders, establishing a subsidiary in Spain, attracting investment, protecting personal assets or preparing a business for future growth.
In this article, we analyse the main legal forms available to businesses in Spain, their characteristics, advantages and limitations, as well as the factors that should be reviewed before choosing one.
What is the legal form of a business?
Index of contents
The legal form of a business is the legal structure under which an economic activity is organised.
It determines how the business is incorporated, who is liable for its debts, how it is taxed, which obligations it must comply with, how much capital it requires and how decisions are made.
Choosing the right legal form allows the business structure to reflect the reality of the project. By contrast, choosing solely on the basis of speed, initial cost or simplicity may create problems later, especially if new shareholders join, activity increases, asset-related risks arise or external financing is required.
What should you consider before choosing a legal form?
When choosing between the different legal forms available in Spain, several factors should be considered from the outset:
- Whether you will start the business alone or with other shareholders or partners.
- The level of personal liability you are prepared to assume.
- The amount of capital required to start the activity.
- The type of activity you intend to carry out.
- How the business will be taxed.
- The accounting and corporate obligations involved.
- Whether external financing or new investors may be required.
- Whether the project is expected to grow.
- Whether you want to separate your personal assets from the assets of the business.
There is no single legal form that is universally better than the others. The right option will depend on the type of business, level of risk, number of shareholders or partners, expected investment and medium- and long-term objectives.
Main legal forms for businesses in Spain
Spain offers several legal forms for carrying out a business or professional activity. Some are designed for individuals, others for commercial companies or cooperative activities, while certain structures are intended for more specific circumstances.
Below, we look at the most common options.
Sole trader or self-employed professional
A sole trader, commonly referred to in Spain as an autónomo, is an individual who carries out a business or professional activity on their own account.
It is one of the simplest ways to start an activity because there is no minimum share capital requirement and no commercial company needs to be incorporated. In general, starting the activity is faster than incorporating a company, although the relevant procedures with the Spanish Tax Agency, Spanish Social Security and, where applicable, other authorities must still be completed.
This legal form may be suitable for professional activities or small businesses with a simple structure, a low level of risk and no need for other shareholders or partners.
Its main disadvantage is personal liability. A sole trader is liable for debts arising from the activity with all present and future personal assets, subject to certain limitations where the individual qualifies as a Limited Liability Entrepreneur.
From a tax perspective, a sole trader is subject to Spanish Personal Income Tax rather than Corporate Income Tax. This may be simpler at the beginning, although the tax impact should be reassessed as income increases.
Limited Liability Entrepreneur
The Limited Liability Entrepreneur is a legal figure intended for individuals carrying out a business or professional activity who wish to limit liability over certain assets.
It may protect the individual’s main residence, subject to specific limits and requirements, as well as certain productive assets used in the business. For this limitation to be effective, the statutory conditions must be met and the corresponding registration with the Commercial Registry must be completed correctly.
However, this structure does not completely remove the entrepreneur’s personal liability. Moreover, the limitation does not apply in the same way to every type of debt, particularly certain public-law liabilities such as tax or Spanish Social Security debts.
Therefore, although it may be a useful alternative in certain circumstances, it should not be confused with the asset protection that a properly structured commercial company may provide.
Civil partnership
A civil partnership is a legal arrangement under which two or more persons contribute assets, money, work or professional activity in order to carry out an activity and share the resulting profits.
It may be useful for relatively simple projects involving several people where a complex corporate structure is not required. However, it should be assessed carefully because the partners’ liability may be unlimited, while the applicable tax treatment will depend on the nature of the partnership and the activity carried out.
Since 2016, civil partnerships with legal personality and a commercial purpose have been subject to Corporate Income Tax. Nevertheless, not all civil partnerships receive the same tax treatment.
Certain professional, agricultural, livestock, forestry, mining or fishing activities may fall outside that regime where they do not have a commercial purpose.
For this reason, before choosing a civil partnership, it is advisable to assess whether it is genuinely the most appropriate form or whether incorporating a limited liability company would be more suitable.
Community of property
A comunidad de bienes, or community of property, is not a commercial company. However, it is sometimes used for projects where several people jointly own an asset or right and exploit it together.
It can be a simple structure for certain activities, but it has significant limitations. As a rule, the co-owners are personally liable for obligations arising from the activity.
In addition, this structure may be unsuitable where the objective is to grow, attract investors, separate personal and business assets or operate through a more professional corporate structure.
Therefore, although it may be appropriate in specific situations, it is generally less suitable for business projects intended to continue or expand over the long term.
Limited liability company
A limited liability company, known in Spain as a sociedad limitada or SL, is one of the most widely used legal forms among SMEs, family businesses, companies with several shareholders and service businesses.
It has its own legal personality and, as a general rule, shareholders’ liability is limited to the capital contributed.
This helps separate the shareholders’ personal assets from those of the company. However, exceptions may arise where personal guarantees have been given, a shareholder acts as a director or certain legal obligations are breached.
Currently, a Spanish limited liability company can be incorporated with minimum share capital of €1. Nevertheless, until its share capital reaches €3,000, specific rules apply.
For example, at least 20% of annual profits must be allocated to the legal reserve until that amount is reached. In addition, certain liabilities may arise on liquidation if the company’s assets are insufficient.
An SL is often appropriate when there are several shareholders, when liability needs to be limited, when the activity carries a certain level of risk or when a more stable and professional structure is required.
Its main advantages include:
- Liability generally limited to the capital contributed.
- Greater separation between personal and business assets.
- A more established image with customers, suppliers and investors.
- The ability to regulate relationships between shareholders through articles of association and shareholders’ agreements.
- A flexible structure for SMEs and family businesses.
Its main disadvantage is that it involves more formalities and obligations than operating as a sole trader. These include incorporation before a notary, registration with the Commercial Registry, accounting requirements, filing annual accounts and complying with tax and corporate obligations.
Public limited company
A public limited company, known in Spain as a sociedad anónima or SA, is a commercial company with its own legal personality and liability limited to the capital contributed.
Its share capital is divided into shares and cannot be lower than €60,000. At the time of incorporation, at least the legally required percentage must be paid up.
An SA is generally intended for larger projects, companies with significant financing needs, structures involving many shareholders or businesses where greater flexibility in the transfer of shares is expected.
Compared with an SL, shares in an SA can generally be transferred more easily, although restrictions may be included in the articles of association in certain circumstances.
Because of its structure, a public limited company may be appropriate where the project requires substantial investment, a more complex corporate organisation or greater flexibility for new investors to enter.
Cooperative company
A cooperative company is a legal form made up of individuals or entities that come together to carry out business activities intended to meet shared economic or social needs.
It can be a suitable option for projects with a collective, participatory or social purpose where members play an active role in both the activity and decision-making.
Cooperatives are incorporated by public deed and must be registered with the relevant Cooperative Societies Registry. Minimum share capital is established in the bylaws, while members’ liability is generally limited to their capital contributions unless otherwise provided.
From a tax perspective, cooperatives may benefit from a special Corporate Income Tax regime where the applicable requirements are met.
It is important to note that cooperative legislation may vary depending on the territory concerned. Where the cooperative operates across several autonomous communities, national legislation may apply. If its activity is mainly carried out within one autonomous community, the corresponding regional legislation should also be reviewed.
Other legal forms that may be considered
In addition to the structures above, other legal forms may be appropriate in specific circumstances.
For example, employee-owned companies may be suitable where most of the share capital belongs to employees who provide paid services to the company. Professional companies may be required where an activity is carried out through a regulated profession and specific legislation applies.
There are also general partnerships, limited partnerships, economic interest groupings and temporary business associations, although their use is more limited or intended for specific purposes.
For investment projects, international expansion, family businesses or corporate groups, more complex structures may also need to be considered, including holding companies, subsidiaries, branches or representative offices.
Comparison of business legal forms
The following table summarises some of the main differences between the most common legal forms:
| Legal form | Number of owners / shareholders | Liability | Minimum capital | Usual taxation | When it may be suitable |
|---|---|---|---|---|---|
| Sole trader | 1 | Unlimited, subject to specific limitations | No minimum capital | Personal Income Tax | Individual, professional or initially low-risk activities. |
| Limited Liability Entrepreneur | 1 | Partial limitation for certain assets where requirements are met | No minimum capital | Personal Income Tax | Self-employed individuals seeking to protect certain assets within statutory limits. |
| Civil partnership | 2 or more | May be unlimited | No general statutory minimum | Corporate Income Tax if it has legal personality and a commercial purpose | Simple projects involving several partners, subject to prior review of liability and taxation. |
| Community of property | 2 or more | Personal liability of the co-owners | No general statutory minimum | Income attribution regime | Joint exploitation of assets or rights in specific circumstances. |
| Limited liability company | 1 or more | Limited to capital contributed, subject to exceptions | €1 | Corporate Income Tax | SMEs, family businesses, businesses with shareholders and projects intended to operate on a stable basis. |
| Public limited company | 1 or more | Limited to capital contributed, subject to exceptions | €60,000 | Corporate Income Tax | Larger projects, substantial investment or structures involving numerous shareholders. |
| Cooperative company | According to applicable legislation | Generally limited to capital contributions | As established in the bylaws | Special Corporate Income Tax regime where applicable | Collective, participatory or social economy projects. |
This table provides a general overview and does not replace an assessment of the specific circumstances.
The same activity may require different solutions depending on the shareholders or partners involved, the level of risk, turnover, financing, taxation and the objectives of the project.
Differences between a limited liability company and a public limited company
Limited liability companies and public limited companies are two of the best-known commercial legal forms in Spain. Both have their own legal personality and provide limited liability, but there are important differences between them.
| Aspect | Limited liability company | Public limited company |
|---|---|---|
| Minimum capital | €1, subject to specific rules until €3,000 is reached | €60,000 |
| Capital divided into | Equity interests | Shares |
| Transfer | More restricted, particularly to third parties | More flexible, subject to any restrictions in the articles of association |
| Common use | SMEs, family businesses, service companies and small or medium-sized subsidiaries | Larger projects, significant investment or structures with many shareholders |
| Corporate bodies | General Meeting and management body | General Meeting and management body |
| Complexity | Lower than an SA | Greater formality and complexity |
| Taxation | Corporate Income Tax | Corporate Income Tax |
In practice, the limited liability company is usually the most common legal form for small and medium-sized businesses.
The public limited company is generally reserved for larger projects, more complex corporate structures or businesses requiring a higher level of initial capital.
Which legal form should you choose?
The right choice depends on the specific project. However, several common scenarios can help illustrate the decision.
- If an individual starts a professional activity with low investment and limited risk, operating as a sole trader may be worth considering.
- If the objective is to separate personal and business assets, bring in shareholders or establish a more stable structure, a limited liability company may be more appropriate.
- If the project requires substantial investment, a large number of shareholders or greater flexibility when transferring ownership interests, a public limited company may be considered.
- If the activity has a participatory, collective or social purpose, a cooperative may be appropriate.
- If a foreign company wants to operate in Spain, it will be necessary to assess whether to incorporate a Spanish company, open a branch, operate through a representative office or consider another establishment structure.
The key is not to choose the cheapest or fastest legal form, but the one that best protects the project and allows it to develop with legal certainty.
Common mistakes when choosing a legal form
When choosing the legal form of a business, certain mistakes can create problems later.
Some of the most common include:
- Choosing solely on the basis of the initial incorporation cost.
- Failing to assess personal liability.
- Not planning for the entry or exit of shareholders.
- Failing to analyse the project’s actual tax position.
- Using a legal form that does not fit the activity.
- Not preparing the articles of association, powers of attorney or shareholders’ agreements properly.
- Failing to consider future financing, growth or transfer of the business.
- Confusing administrative simplicity with legal certainty.
These issues can often be avoided by reviewing the project and its legal, tax and corporate implications before the structure is chosen.
Advice on choosing the legal form of a business
Choosing the right legal form is a strategic decision.
It affects the liability of shareholders and directors, taxation, internal organisation, future obligations and the company’s ability to grow.
At LEIALTA, we support entrepreneurs, family businesses, corporate groups and foreign companies looking to establish a business in Spain or review the most appropriate structure for their activities.
You can find further information about our company formation services in Spain, our legal and corporate advisory services, or our article explaining how to set up a company in Spain step by step.
Obtaining specialist advice from the outset can help you choose a coherent structure, avoid incorporation mistakes and prepare the company for future growth with greater legal certainty.
