Branch vs Subsidiary in Spain

Branch or Subsidiary: The Fundamental Choice

When a foreign company decides to establish a formal presence in Spain, it must choose between two principal structures:

1. Branch (Sucursal): A registered extension of the foreign company in Spain — legally and economically part of the parent, with no separate legal personality
2. Subsidiary (Filial): A new, independent Spanish company — typically an S.L. (Sociedad Limitada) or, for larger operations, an S.A. (Sociedad Anónima) — owned by the foreign parent but legally distinct from it

Both structures require registration at the Commercial Registry (Registro Mercantil) and compliance with Spanish tax law. The choice between them is driven by tax efficiency, liability management, commercial perception, and long-term strategy.

How Each Structure Works in Spain

The Branch (Sucursal)

A branch is established by the foreign parent company, which registers a Spanish “establishment” in the relevant provincial Commercial Registry. The registration documents required include:

• A notarial deed of establishment of the branch (escritura de apertura de sucursal)
• Apostilled copy of the foreign parent’s constitutional documents
• Appointment of a resident representative in Spain with powers of attorney
• Evidence of the parent company’s legal existence (certificate of good standing or equivalent)

Key characteristics:

• No separate legal personality — the parent and branch are one legal entity
• The parent’s worldwide assets are exposed to branch liabilities
• The branch must maintain Spanish accounting records for its Spanish operations
• A resident representative (apoderado) must be appointed who can act on behalf of the branch
• The branch files its own Spanish Corporate Tax return (Modelo 200) but as a permanent establishment, not as a Spanish entity

The Subsidiary (S.L. or S.A.)

An S.L. is incorporated before a notary, registered at the Commercial Registry, and obtains its own NIF. It is a fully independent Spanish company with its own shareholders’ meeting, board of directors, and accounting obligations.

Key characteristics:

• Separate legal personality — parent’s liability is generally limited to its equity investment
• Full Spanish corporate governance requirements (annual accounts, shareholders’ meeting, filing at the Registry)
• Access to all Spanish Corporate Tax regimes (SME incentives, tax consolidation if applicable)
• Transfer pricing documentation required for transactions with the parent
• Dividends repatriated to the parent may be subject to withholding tax (5% or 0% depending on the treaty and participation levels)

Tax Comparison

Corporate Tax Base

Withholding on Repatriation

A branch can transfer profits to its foreign parent without Spanish withholding tax — provided the parent is resident in an EU/EEA country or in a treaty country. This is one of the historic tax advantages of branches over subsidiaries.

A subsidiary paying dividends to a non-resident parent is subject to withholding tax at the domestic rate of 19%, reducible under applicable double-tax treaties to 0–15%. Under the EU Parent-Subsidiary Directive (implemented in Spain’s IS Law), dividends paid to EU parent companies holding at least 5% for at least one year are exempt from withholding.

Transfer Pricing

A subsidiary must price all transactions with its foreign parent at arm’s length and maintain transfer-pricing documentation. A branch also must apply arm’s-length principles to transactions between the branch and the head office, but the documentation requirement is less standardised and depends on the specific activities of the branch.

Practical Decision Framework

Key Regulations

• Real Decreto Legislativo 1/2010 (Ley de Sociedades de Capital): corporate law for S.L. and S.A.
• Código de Comercio, Articles 15–17: branch registration requirements
• Real Decreto Legislativo 5/2004 (Ley del IRNR): branch taxation as permanent establishment
• Ley 27/2014 (LIS): subsidiary Corporate Tax
• EU Parent-Subsidiary Directive (transposed in Article 21.1 LIS): dividend withholding exemption

Practical Implications for Foreign Investors

Market Entry Strategy

Most foreign companies entering Spain for the first time choose an S.L. subsidiary. The limited liability protection, full access to Spanish tax incentives, and cleaner governance structure outweigh the slightly higher administrative cost. Branches are more common for financial institutions, professional service firms, and companies testing the Spanish market before committing to a standalone entity.

Transition from Branch to Subsidiary

It is possible to convert a branch into a subsidiary after the initial period, typically through a business transfer or a statutory reorganisation (reorganización empresarial). If structured as a qualifying corporate reorganisation under Spanish tax law, the transfer can be made on a tax-neutral basis (régimen especial de reestructuración empresarial). This is a common path for companies that start with a branch to test the market and later formalise as an S.L.

How BMC Can Help

We advise foreign companies on the optimal legal and tax structure for their Spanish market entry, prepare the incorporation or branch registration documents, manage AEAT and registry filings, and provide ongoing tax and corporate governance support. For companies considering the branch-to-subsidiary transition, we model the tax-neutral reorganisation route and manage the full restructuring process.