Expanding your international business into Spain is a landmark decision, opening doors to the Eurozone’s fourth-largest economy. However, the first and most critical step is choosing the correct legal structure for your operations. The two principal avenues for a foreign company to establish a physical presence are creating a branch (sucursal) or incorporating a subsidiary (filial).

This choice is far from a mere formality. It has profound and lasting implications for your company’s liability, taxation, administrative obligations, and strategic flexibility. As a leading firm in Spanish corporate law and taxation for international clients, we at LegalTax have crafted this definitive guide to help you navigate the complexities and make an informed, strategic decision.

A Spanish branch is not a new, independent company. It is best understood as a permanent establishment or a direct outpost of the foreign parent company. It lacks a separate legal personality, meaning it is legally one and the same as the headquarters abroad.

• No Separate Legal Identity: It operates under the name and persona of the parent company.
• Unlimited Liability: This is the most critical point to understand. All debts, risks, and legal obligations incurred by the Spanish branch can be enforced directly against the parent company’s global assets. There is no corporate veil of protection.
• No Minimum Capital: As it is financially backed by the parent, there is no legal requirement to deposit a minimum share capital in Spain.
• Scope of Business: A branch’s activities in Spain are restricted to the same corporate objects defined in the parent company’s articles of association.

1. Parent Company Resolution: The board of the foreign parent company must pass a resolution to open the branch in Spain.
2. Notarisation and Apostille: This resolution, along with the parent’s articles of association and a power of attorney for the branch’s representative, must be notarised in its home country and legalised with the Apostille of the Hague.
3. Sworn Translation: All apostilled documents must be translated into Spanish by an officially recognised sworn translator (traductor jurado).
4. Appointment of a Legal Representative: A tax-resident individual in Spain must be appointed to manage the branch’s affairs and represent it before the authorities.
5. Execution of Public Deed: A Spanish notary will draft the public deed of establishment (escritura de constitución de la sucursal).
6. Obtain a Tax ID Number (NIF): The branch must be registered with the Spanish Tax Agency (Agencia Tributaria) to receive its NIF.
7. Companies Registry: Finally, the public deed is inscribed in the Provincial Companies Registry (Registro Mercantil).

A subsidiary is a new, independent Spanish company, majority-owned and controlled by the foreign parent company. It possesses its own, distinct legal personality, separate from its owner. The most common form is the Limited Liability Company (Sociedad de Responsabilidad Limitada – S.L.), which offers an ideal balance of flexibility and protection.

• Separate Legal Personality: The subsidiary is a Spanish legal entity, subject to Spanish corporate law.
• Limited Liability: This is the paramount advantage. The parent company’s liability is strictly limited to the amount of capital it invested in the subsidiary. The subsidiary’s creditors cannot pursue the parent company’s assets.
• Minimum Share Capital: For an S.L., the minimum required share capital is €3,000, which must be fully paid into a Spanish bank account upon incorporation.
• Operational Autonomy: It can define its own corporate objects, enter contracts, hire employees, and manage its affairs independently.

1. Obtain NIE for Directors: All foreign directors and shareholders of the new company must first obtain a Spanish Foreigner’s Identification Number (Número de Identificación de Extranjero – NIE).
2. Company Name Certificate: Secure a certificate from the Central Mercantile Registry confirming the proposed company name is unique and available.
3. Open a Company Bank Account: Open an account in the name of the “company in formation” and deposit the €3,000 minimum share capital. The bank will issue a certificate.
4. Draft the Articles of Association (Estatutos Sociales): These are the company’s bylaws, defining its governance, purpose, and internal rules. Professional drafting is essential.
5. Execute the Public Deed of Incorporation: The founders (or their representatives) must sign the deed before a Spanish notary.
6. Obtain a Provisional NIF: The Spanish Tax Agency will issue a provisional tax ID number.
7. Register with the Mercantile Registry: Inscription in the Registry grants the company its full legal personality.
8. Obtain the Definitive NIF: Once registered, the provisional NIF is converted to a definitive one, and the company is fully operational.

Feature	Branch (Sucursal)	Subsidiary (Filial – S.L.)
Primary Advantage	Simplicity and no capital requirement.	Limited Liability.
Liability Shield	None. Parent company has unlimited, direct liability.	Strong. Liability is limited to capital invested.
Minimum Capital	€0	€3,000
Legal Status	Extension of foreign parent.	Independent Spanish company.
Tax Regime	Non-Resident Income Tax (IRNR) on Spanish income.	Spanish Corporation Tax (IS) on worldwide income.
Administrative Burden	Simpler accounting and filing obligations.	Full Spanish corporate compliance required.
Market Perception	A foreign outpost. May hinder local trust.	A fully committed Spanish entity. Enhances credibility.
Strategic Flexibility	Low. Limited to parent’s scope.	High. Can have its own strategy and purpose.
Exit Strategy	Complex transfer of assets/liabilities.	Simple sale of company shares.

• Branch (IRNR): A branch is taxed under the Non-Resident Income Tax, typically at a flat rate of 24% on its net profit. Crucially, any profits transferred (repatriated) from the branch to its foreign head office may be subject to an additional “branch profit tax” (currently 19%), unless mitigated by a Double Taxation Treaty.
• Subsidiary (IS): A subsidiary is a Spanish tax resident and pays the standard Spanish Corporate Income Tax (general rate of 25%) on its worldwide income. The key tax advantage lies in distributions. Dividends paid by the subsidiary to its EU parent may be exempt from withholding tax under the EU Parent-Subsidiary Directive. Furthermore, it can fully leverage Spain’s extensive network of over 90 Double Taxation Treaties to reduce withholding taxes on payments globally.

Choosing the right entity is a strategic, not just a legal, decision.

• Market Testing: A low-commitment way to explore the Spanish market.
• Short-Term Projects: Ideal for executing a specific, time-limited contract (e.g., a single construction project).
• Low-Risk Activities: When the business entails minimal liability risk.
• Leveraging Parent Brand: For highly-reputed global brands in sectors like banking or insurance where the parent’s name is the primary asset.

• Long-Term Commitment: Signalling a serious, permanent investment in the Spanish and European markets.
• Risk Mitigation: When the business operations carry potential commercial, employment, or product liabilities, the corporate veil is essential protection.
• Full-Scale Operations: If you plan to manufacture, employ a significant workforce, hold valuable assets (like real estate or IP), and operate a complete business unit.
• Building a Spanish Brand: Creating a local identity that builds trust with Spanish clients, suppliers, and financial institutions.
• Tax Efficiency: To fully benefit from Spain’s favourable treaty network and EU directives.
• Future Exit or Investment: If you foresee selling the Spanish operation or bringing in new investors, selling shares in an S.L. is far simpler.

Q: Can a branch be converted into a subsidiary later? A: Yes, this is possible through a process called a “contribution of a branch of activity” (aportación de rama de actividad), where the assets and liabilities of the branch are transferred to a newly incorporated subsidiary. This requires careful legal and tax planning.

Q: Is the director of a subsidiary or the representative of a branch liable? A: Both can be held liable for mismanagement or failure to comply with their legal duties. However, with a branch, the parent company is always ultimately liable for the business debts, whereas with a subsidiary, the directors’ liability and the parent’s liability are distinct concepts.

Q: Which is faster to set up? A: The timelines are broadly similar, often taking 4-6 weeks. A branch can sometimes be slightly faster as it avoids the step of depositing share capital, but this depends heavily on how quickly the parent company can provide the necessary apostilled and translated documents.

For the vast majority of foreign companies seeking a serious, lasting, and secure presence in Spain, the subsidiary (Sociedad de Responsabilidad Limitada – S.L.) is the unequivocally superior choice. The protection of limited liability is the single most compelling reason. It effectively insulates your global operations from risks arising in Spain, a safeguard that no prudent international business should ignore.

While a branch may seem simpler on the surface, this perceived simplicity comes at the high price of unlimited risk.

The path to expanding in Spain is complex, but it doesn’t have to be difficult. Choosing the right structure from the outset saves invaluable time, money, and protects you from future liabilities.

Are you ready to establish your business in Spain? Don’t leave this critical decision to chance. Contact the expert corporate law and tax team at LegalTax today for a personalized consultation. We will analyze your business objectives and guide you seamlessly through every step of the process.

[Click Here to Schedule Your Consultation]