An SL (Sociedad Limitada) set up as a Spanish subsidiary is a separate Spanish legal entity you own — your parent company's liability is generally limited to its investment, it has its own corporate identity, and it's taxed as a Spanish company. A branch (sucursal) is not a separate legal entity — it's an extension of the foreign parent, so the parent is fully liable for the branch's debts, though a branch can be quicker/cheaper to register and avoids forming a new company. Both are taxed in Spain on their Spanish activity (corporate tax / non-resident permanent-establishment rules) and both must register and file accounts. As a rule of thumb, most foreign businesses choose the SL subsidiary for the liability shield and credibility; a branch suits specific, often shorter-term or lower-risk, situations. The right choice is fact-specific.
What an SL Subsidiary Is
Setting up an SL (Sociedad Limitada) as a subsidiary means incorporating a new Spanish company, owned by your foreign parent company (and/or other shareholders). It's a separate legal entity in its own right — it signs its own contracts, owns its own assets, has its own tax number (CIF), and is registered at the Mercantile Register. Crucially, because it's a distinct legal person, your parent company's exposure is generally limited to the capital it invests in the subsidiary; the Spanish company's debts are the Spanish company's, not the parent's (subject to the usual exceptions for director misconduct or unpaid taxes).
This is the structure most foreign businesses choose when establishing a real, ongoing presence in Spain. It gives a clean liability separation between the Spanish operation and the rest of the group, a recognisable Spanish corporate identity (often valued by Spanish clients, banks and partners), and a standalone vehicle that can be sold, restructured or wound up independently. The trade-off is that you're forming and running a full Spanish company — incorporation cost, share capital, corporate governance and full accounting — but for most that's a price worth paying for the protection and standing it provides. Our SL company service handles incorporation, and our autónomo vs SL comparison covers the SL for individual founders.
What a Branch (Sucursal) Is
A branch (sucursal) is fundamentally different: it is not a separate legal entity. A branch is a permanent establishment in Spain that remains part of the foreign parent company — an extension of it operating on Spanish soil. It registers in Spain (at the Mercantile Register), gets a Spanish tax number, can trade, employ staff and have premises, and must appoint a legal representative in Spain — but legally it is the parent company doing business in Spain, not a new company.
The defining consequence flows from that: because the branch isn't a separate entity, the foreign parent is fully liable for the branch's debts and obligations — there's no liability shield between the Spanish operation and the parent. On the other hand, a branch can be quicker and cheaper to set up than incorporating a subsidiary (no new company, no separate share capital in the same way), and it keeps the operation legally unified with the parent, which can simplify some intra-group matters. Branches suit specific situations — testing the market, a limited or project-based presence, or a group structure where a separate subsidiary isn't wanted — but the unlimited parent liability is the trade-off that makes most businesses prefer the SL for anything substantial or ongoing.
SL vs Branch Side by Side
| SL subsidiary | Branch (sucursal) | |
|---|---|---|
| Legal status | Separate Spanish legal entity | Extension of the foreign parent |
| Parent liability | Limited to capital invested | Full — parent liable for branch debts |
| Set-up | Incorporate a company (notary, capital, registry) | Register the branch — often quicker/cheaper |
| Identity | Standalone Spanish company | Trades as the foreign parent in Spain |
| Tax | Spanish corporate tax on its profits | Taxed on Spanish permanent-establishment profits |
| Accounts/filing | Full Spanish company accounts | Filing & (often) parent accounts deposited too |
| Best for | Ongoing, substantial presence; liability shield | Limited/project presence; group reasons |
The headline: the SL gives a separate entity and a liability shield at the cost of forming a full company; the branch is simpler to establish but leaves the parent fully exposed. Liability is the dividing line for most decisions.
Liability: the Key Difference
This is the factor that decides most cases. With an SL subsidiary, the Spanish company is a separate legal person, so its debts and liabilities are ring-fenced from the parent — if the Spanish operation runs into trouble, creditors look to the subsidiary and the parent generally risks only the capital it put in. That separation protects the wider group from the risks of the Spanish venture, which is exactly why it's the default for any operation with real commercial or financial exposure.
With a branch, there is no such shield: because the branch is the parent, the parent is fully liable for everything the branch does — its debts, contracts, employment liabilities and claims all reach back to the parent company. For a business with significant Spanish trading, contracts, staff or risk, that unlimited exposure is usually unacceptable, and the SL's protection is well worth the extra set-up. A branch's full-liability profile is only comfortable where the Spanish activity is genuinely limited, low-risk, or the group has specific reasons to keep the operation legally unified. As with the individual autónomo vs SL decision, liability exposure should drive the structure.
The branch offers no liability shield
Because a branch is part of the foreign parent rather than a separate company, the parent is fully liable for the branch's debts and obligations. If your Spanish operation will carry real risk, staff or significant contracts, the SL subsidiary's liability separation is usually the safer choice.
Tax Treatment
Both structures are taxed in Spain on their Spanish-source profits, but through slightly different mechanisms. An SL subsidiary is a Spanish-resident company taxed under corporate tax (Impuesto sobre Sociedades) on its worldwide profits as a Spanish company, with the usual rates and a reduced rate available to newly created companies for their first profitable years. Profit distributed back to the parent (as dividends) then has its own treatment, where double-taxation treaties and EU parent-subsidiary rules can reduce or eliminate withholding.
A branch is taxed in Spain on the profits attributable to its Spanish permanent establishment — broadly, the income the branch generates in Spain — at the corporate-tax rate, under the non-resident income tax rules for permanent establishments. The headline rates can be similar, but the detail differs: how profits are attributed to the branch, the treatment of payments between branch and head office, and the way profits are repatriated all follow different rules from a subsidiary's dividend route. Which is more tax-efficient depends on your specific situation — the level and type of activity, how profits flow within the group, and the relevant treaty — so it's genuinely a modelling exercise, not a rule of thumb. Our tax & fiscal services and business tax support run the comparison.
Set-Up & Reporting
On set-up, an SL subsidiary is a full incorporation: company name certificate, notarised deed, share capital, CIF, and Mercantile Register registration — more steps and cost than a branch. A branch is registered rather than incorporated, which can be quicker and avoid forming a new company and depositing share capital in the same way, though it still requires notarisation of the parent's resolution to open the branch, legalised/translated parent documents, registration and a Spanish legal representative.
On ongoing reporting, both must keep Spanish accounts and file Spanish tax returns. A point sometimes overlooked is that a branch, because it's part of the foreign parent, can trigger requirements to file or deposit the parent company's accounts in Spain too — so the "simpler" branch isn't always lighter on disclosure, and can expose the parent's financials more than a standalone subsidiary would. Both need proper Spanish accounting and compliance, which is part of running either structure. The practical upshot is that the SL's heavier set-up buys a cleaner, self-contained ongoing structure, while the branch's lighter set-up can come with its own disclosure and representation obligations — so weigh the whole lifecycle, not just day one.
Which Suits You
A few honest pointers:
- Establishing a real, ongoing Spanish presence? The SL subsidiary is usually right — liability shield, credibility, self-contained.
- Worried about exposing the parent? The SL ring-fences the Spanish risk; the branch leaves the parent fully liable.
- Testing the market or a limited/project presence? A branch can be quicker and cheaper to stand up.
- Want a recognisable Spanish corporate identity? Clients, banks and partners often prefer dealing with a Spanish SL.
- Concerned about disclosing parent financials? A branch can trigger deposit of the parent's accounts in Spain — the SL keeps the parent's figures separate.
- Group/tax structuring reasons? Some groups have specific reasons to prefer a branch — worth modelling the tax both ways.
For most foreign businesses establishing a genuine, ongoing operation in Spain, the SL subsidiary is the default choice, chiefly for the liability protection and standing. A branch is the right answer in narrower cases — limited or short-term activity, low risk, or specific group/tax reasons — and even then the full parent liability should be a conscious, accepted trade-off. Because both the liability and tax positions are fact-specific, it's a decision to model properly before committing.
Common Mistakes
- Choosing a branch to save set-up cost without weighing liability. The parent is fully liable for a branch — rarely worth a modest set-up saving for a real operation.
- Assuming a branch is always "lighter". It can trigger deposit of the parent's accounts in Spain, exposing more than a subsidiary would.
- Picking on tax headlines. Subsidiary and branch tax detail differs (dividends vs PE attribution and repatriation) — model your actual situation.
- Forgetting the Spanish legal representative. A branch must appoint one in Spain; overlooking this stalls registration.
- Underestimating ongoing compliance. Both need full Spanish accounting and filings — neither is "set and forget".
- Not aligning with group structure. The Spanish vehicle should fit the wider group's liability, tax and reporting strategy.
How We Help
We help foreign businesses choose and establish the right Spanish vehicle. We weigh the liability exposure for your operation, model the tax both ways (subsidiary corporate tax and dividend repatriation versus branch permanent-establishment taxation), and factor in the set-up and ongoing reporting — including the branch's potential parent-accounts disclosure — so the decision is made on the full picture. Then we handle the formation end to end: incorporating the SL subsidiary (name, deed, capital, CIF, registration) or registering the branch (parent resolutions, legalised documents, legal representative, registration), and the ongoing tax and compliance. It sits within our business & commercial and tax & fiscal services, in English on a clear quote. Your consultation gives you a clear recommendation and an exact quote.
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Non-resident vs resident tax →Frequently Asked Questions
An SL subsidiary is a separate Spanish company you own, so the parent's liability is generally limited to its investment and it has its own corporate identity. A branch (sucursal) is not a separate entity — it's an extension of the foreign parent, so the parent is fully liable for the branch's debts. Both are taxed in Spain and must register and file, but they differ fundamentally in liability and legal status.
Often yes — registering a branch can be quicker and cheaper than incorporating a subsidiary, avoiding forming a new company and depositing share capital in the same way. But it still needs notarised parent resolutions, legalised documents, a Spanish legal representative and registration, and it can trigger deposit of the parent's accounts in Spain, so it isn't always lighter overall.
The SL subsidiary. Because it's a separate legal entity, its debts are ring-fenced and the parent generally risks only the capital it invests. A branch is part of the parent, so the parent is fully liable for everything the branch does. For any operation with real risk, staff or significant contracts, the SL's liability separation is usually the safer choice.
An SL is a Spanish-resident company taxed under corporate tax on its profits, with dividends back to the parent then treated under treaties and EU rules. A branch is taxed on the profits attributable to its Spanish permanent establishment under the non-resident rules. Rates can be similar but the detail — profit attribution, head-office payments, repatriation — differs, so it's worth modelling your specific case.
It can. Because a branch is part of the foreign parent, there can be requirements to file or deposit the parent company's accounts in Spain, in addition to the branch's own filings. This means the "simpler" branch can actually expose more of the parent's financials than a standalone subsidiary would — a point worth weighing in the decision.
A branch suits narrower situations — testing the Spanish market, a limited or project-based presence, low-risk activity, or specific group/tax structuring reasons — where the simpler set-up is attractive and the full parent liability is an accepted trade-off. For a substantial, ongoing operation with real exposure, most businesses prefer the SL subsidiary.
Yes. Both an SL subsidiary and a branch register in Spain, obtain a Spanish tax number, must keep Spanish accounts and file Spanish tax returns, and a branch must also appoint a Spanish legal representative. Neither is "set and forget" — both involve ongoing Spanish compliance, which we handle as part of running the structure.
Weigh the liability exposure of your Spanish operation, model the tax both ways, and factor in set-up and ongoing reporting (including the branch's potential parent-accounts disclosure). For most ongoing operations the SL subsidiary wins on protection and standing; a branch fits narrower cases. Because it's fact-specific, model it before committing — which is exactly what we do in a consultation.