Expanding into Spain: Subsidiary, Branch or Representative Office?

Opening operations in Spain starts with a legal choice that shapes everything that follows: will you create a subsidiary, register a branch, or open a representative office? The decision affects liability and tax — and, just as importantly for international companies, it determines which immigration routes are available for the people you want to relocate.

The three structures

Subsidiary (sociedad limitada)

A subsidiary is a separate Spanish legal entity, most commonly a sociedad de responsabilidad limitada (S.L.). It has its own legal personality and its own tax number, contracts in its own name, hires employees directly, and limits the parent company's liability to its capital contribution. Incorporation runs through a notary and the Mercantile Registry, with a modest minimum share capital. For a long-term commercial presence in Spain, the subsidiary is usually the default answer.

Branch (sucursal)

A branch is a registered extension of the foreign parent. It can carry on the full commercial activity and hire staff, but it has no separate legal personality: the parent answers for the branch's obligations without limit. Setup is somewhat lighter than incorporation — the branch is registered with the Mercantile Registry on the basis of the parent's corporate documents — and governance stays with the head office. The trade-off is liability exposure and, in some situations, a less familiar counterpart for Spanish banks and clients.

Representative office

The representative office is the lightest footprint: no separate entity, no registration as such, and — crucially — no commercial activity. It may carry out market research, liaison and promotion, but it cannot invoice clients in Spain. For companies still testing the market, it is often a sensible first step; for companies ready to sign contracts, it is too small a vehicle.

What the choice means for relocating your team

Spain's fast-track immigration routes for international talent were created by Law 14/2013 (the "Entrepreneurs Law") and are processed by the UGE — Unidad de Grandes Empresas — with short statutory decision periods. Which routes you can use depends directly on the structure you chose.

Highly Qualified Professional (HQP)

The HQP permit requires a Spanish employer to sponsor the application — in practice, a subsidiary or a branch that hires the professional under a Spanish contract. Decisions arrive in around 20 working days and there is no labour-market test. A representative office, with no commercial activity, is generally not a suitable sponsor.

Intra-company transfer (ICT)

The ICT permits — national and EU varieties — are built for group mobility: employees of a foreign group company are posted to the Spanish operation while keeping their home employment relationship. A real group link must exist, which both subsidiaries and branches satisfy. ICT is often the fastest way to put experienced people on the ground while the Spanish entity grows.

EU Blue Card

For highly qualified hires on a Spanish employment contract, the EU Blue Card is the alternative to HQP, with the added value of facilitated mobility across EU member states later on.

Choosing in practice

Three questions resolve most cases. Will the Spanish operation invoice clients in Spain? If yes, the representative office is out. Does the parent accept unlimited liability for Spanish obligations? If not, prefer the subsidiary. And who needs to be in Spain, how soon, under which contract? The answer maps your people onto HQP, ICT or the Blue Card — and the structure must support that mapping from day one.

Corporate, tax and immigration decisions are usually taken by different advisers who never meet. We work the other way: one strategy for the entity and the people, coordinated with trusted corporate and tax specialists, so the structure you incorporate is the structure your relocation plan actually needs.