Opening a corporate subsidiary in Spain is not just an administrative procedure: it is a decision that activates, from day one, a set of tax, accounting, and corporate obligations that are very different from those of your home country. Perhaps your company is growing and Spain is the next natural market. Maybe you already have clients here and need a legal structure to operate normally. Or perhaps your group has decided to centralize part of its European operations in Barcelona or Madrid. Whatever the starting point, the bottom line is the same: know the rules before taking the first step, not after.
In this article, we explain the differences between a subsidiary and a branch, what Spanish regulations require from the very first day of activity, and the most common mistakes made by international companies when landing in Spain without the proper guidance.
The first decision: subsidiary, branch, or representation office
Before talking about taxes, you must choose the right structure. The three most common options are the subsidiary, the branch, and the representation office, and they are not interchangeable: each has very different tax, corporate, and operational consequences, and making a mistake here can prove costly later on.
The subsidiary: its own legal personality
A subsidiary is an independent Spanish company (usually a Limited Liability Company or “Sociedad Limitada”) owned by the foreign company. It has its own legal personality, responds with its own assets, and is subject to all the obligations of any Spanish company: Corporate Income Tax on its worldwide income, VAT, withholdings, accounting according to the Spanish General Accounting Plan, and filing of annual accounts with the Mercantile Registry.
It is the most widely used structure by multinational groups wishing to develop stable activity in Spain, and this is no coincidence. The parent company’s liability is limited to the capital contributed (except in exceptional cases of piercing the corporate veil), and the commercial image is that of a Spanish company, which greatly facilitates relationships with clients, suppliers, and financial institutions.
The branch: an extension of the parent company without its own personality
The branch, on the other hand, does not have an independent legal personality: it is an extension of the foreign company in Spain, meaning that the parent company is directly liable for all its obligations. From a tax perspective, it pays Non-Resident Income Tax as a permanent establishment (via Form 206), solely on the profits attributable to its activity in Spain.
It requires the permanent representative in Spain to be a tax resident in the country. Its incorporation requires a public deed before a notary, registration in the Mercantile Registry, and obtaining a Tax Identification Number (NIF) from the Spanish Tax Agency (AEAT). The accounting obligations are similar to those of a subsidiary, although the branch’s accounts are integrated into those of the parent company.
The representation office: presence without commercial activity
The representation office is designed for auxiliary or preparatory activities: market research, public relations, internal coordination. Generally speaking, it does not generate a permanent establishment for tax purposes, but beware: its classification depends on the actual facts, not on paper. If the representatives have powers to conclude contracts or if the activity goes beyond what is merely auxiliary, the AEAT can reclassify it as a permanent establishment, with all its consequences.
The subsidiary: its own legal personality
A subsidiary is an independent Spanish company (usually a Limited Liability Company or “Sociedad Limitada”) owned by the foreign company. It has its own legal personality, responds with its own assets, and is subject to all the obligations of any Spanish company: Corporate Income Tax on its worldwide income, VAT, withholdings, accounting according to the Spanish General Accounting Plan, and filing of annual accounts with the Mercantile Registry.
It is the most widely used structure by multinational groups wishing to develop stable activity in Spain, and this is no coincidence. The parent company’s liability is limited to the capital contributed (except in exceptional cases of piercing the corporate veil), and the commercial image is that of a Spanish company, which greatly facilitates relationships with clients, suppliers, and financial institutions.
The branch: an extension of the parent company without its own personality
The branch, on the other hand, does not have an independent legal personality: it is an extension of the foreign company in Spain, meaning that the parent company is directly liable for all its obligations. From a tax perspective, it pays Non-Resident Income Tax as a permanent establishment (via Form 206), solely on the profits attributable to its activity in Spain.
It requires the permanent representative in Spain to be a tax resident in the country. Its incorporation requires a public deed before a notary, registration in the Mercantile Registry, and obtaining a Tax Identification Number (NIF) from the Spanish Tax Agency (AEAT). The accounting obligations are similar to those of a subsidiary, although the branch’s accounts are integrated into those of the parent company.
The representation office: presence without commercial activity
The representation office is designed for auxiliary or preparatory activities: market research, public relations, internal coordination. Generally speaking, it does not generate a permanent establishment for tax purposes, but beware: its classification depends on the actual facts, not on paper. If the representatives have powers to conclude contracts or if the activity goes beyond what is merely auxiliary, the AEAT can reclassify it as a permanent establishment, with all its consequences.
Tax obligations from the first day of activity
Once incorporated and registered for taxes, the Spanish subsidiary has exactly the same obligations as any resident company in Spain. There is no grace period or simplified regime for being newly created, no matter if the parent company comes from a country with much more flexible rules.
Corporate Income Tax
The subsidiary pays Corporate Income Tax (IS) on the entirety of its profits, regardless of where they are generated. The general rate is 25%, although newly created companies apply a 15% rate during the first tax period with a positive taxable base and the following one. This reduction can be particularly relevant in the first years of activity, when margins are still tight.
In addition to the annual return (Form 200, in July), the subsidiary must make fractional advance payments towards the Corporate Income Tax in April, October, and December using Form 202, provided that the net turnover of the previous year exceeds 6 million euros, or from the beginning, if the taxable base method is chosen.
VAT
The subsidiary is subject to Spanish VAT from the start of its activity. The filing of Form 303 is quarterly for most companies (April, July, October, and January) or monthly if the subsidiary is registered in the REDEME (Monthly Refund Regime). In January, the annual summary (Form 390) must also be filed.
If the subsidiary carries out intra-community transactions (sales or purchases to companies in other EU countries), it must be registered in the Registry of Intra-Community Operators (ROI) and file Form 349.
Withholdings
The subsidiary is obliged to practice and pay withholdings on the payments it makes: employee payrolls (Form 111), rent (Form 115), professional services, and dividends distributed to the parent company. The general withholding tax on dividends paid to non-residents is 19%, although it can be reduced or eliminated under the EU Parent-Subsidiary Directive or the applicable double taxation treaty.
Related-party transactions and transfer pricing
All transactions between the Spanish subsidiary and other entities in the group (the parent company, other subsidiaries, investee companies) are related-party transactions and must be valued at market price. This includes royalties for the use of brands or technology, intra-group service provisions, intercompany loans, and the sale of goods: practically any financial flow within the group falls here.
If the volume of related-party transactions exceeds certain thresholds, there is an additional obligation to file Form 232 before November 30th. Furthermore, transfer pricing documentation (the so-called masterfile and local file) must be available upon any request from the AEAT, even if it is not attached to Form 200.
Accounting and corporate obligations
The Spanish subsidiary is required to keep accounting records according to the Spanish General Accounting Plan, not according to the accounting rules of the parent company’s country, and to prepare annual accounts (balance sheet, profit and loss account, notes, and, depending on size, statement of cash flows and statement of changes in equity).
The annual accounts must be approved at a shareholders’ meeting within six months following the close of the financial year (before June 30th for financial years closing on December 31st) and deposited in the Mercantile Registry within the month following their approval. This is no minor procedure: failure to deposit can lead to the freezing of the company’s registry files and to penalties.
The mandatory books are the journal, the book of inventories and annual accounts, the minutes book, and the shareholders’ registry book. Furthermore, since 2015, corporate books must be legalized electronically before the Mercantile Registry within four months following the close of the financial year.
Tax incentives worth knowing from the start
The good news is that Spain also offers several regimes and incentives that can be especially relevant for subsidiaries of international groups, and which many companies discover too late:
Participation exemption regime (Art. 21 LIS)
Dividends received by the subsidiary from its foreign investees and capital gains from the transfer of shares may be exempt from Spanish Corporate Income Tax if a minimum shareholding of 5% (or a value exceeding 20 million euros) is maintained for at least one year, and if the investee entity has been subject to a tax analogous to the Spanish Corporate Income Tax.
Foreign Securities Holding Entity (ETVE)
For groups with a holding structure, the ETVE regime allows the Spanish company to act as an investment vehicle abroad, with an exemption on dividends and capital gains from foreign subsidiaries. Dividends distributed by the ETVE to non-resident partners will not be taxed in Spain, under certain conditions.
R&D&i Deduction
Up to 42% of technological innovation expenses and 25% of research and development expenses are deductible from the Corporate Income Tax liability. For groups with R&D activities in Spain, this incentive can make a real difference to the bottom line.
Canary Islands Special Zone (ZEC)
For qualifying activities in the Canary Islands, the effective Corporate Income Tax rate can be reduced to 4%. This is an option increasingly explored by international companies with location flexibility.
15% rate for new companies
The newly incorporated subsidiary applies a 15% rate in Corporate Income Tax during the first tax period with a positive taxable base and the following one. And you do not need to be a startup to access it: simply being newly created is enough.
The most common mistakes in the first two years
The first is underestimating the weight of tax and accounting compliance. Many subsidiaries of international groups arrive in Spain thinking that the parent company’s accountant can manage local obligations from abroad. Spanish regulations (PGC, VAT, withholdings, Corporate Income Tax, Mercantile Registry) have their own rules and deadlines, and ignorance is not an excuse before the AEAT.
The second is failing to properly document intra-group transactions from day one. Invoices between the subsidiary and the parent company, service agreements, loan contracts, and transfer pricing policies must exist in writing and be consistent with what is declared in the Corporate Income Tax. The absence of documentation is usually the first point of attack in any inspection.
The third is failing to correctly manage the withholding tax on dividends at the time of distribution. The 19% withholding tax on dividends paid to the foreign parent company can be reduced under the EU Parent-Subsidiary Directive (which exempts it if the shareholding is 5% for at least one year) or the applicable double taxation treaty. Applying the correct rate from the first distribution avoids refund requests and subsequent procedures, which can drag on for months.
The fourth is not anticipating the risk of permanent establishment for the parent company. If executives of the foreign company spend significant time in Spain managing the subsidiary, if there are individuals with powers to conclude contracts on behalf of the parent company, or if the subsidiary acts exclusively for the benefit of the parent company without its own economic function, the AEAT may consider that the parent company has a permanent establishment in Spain. And that carries tax consequences that go far expensive than what affects the subsidiary itself.
Frequently asked questions about opening a corporate subsidiary in Spain
How long does it take to open a corporate subsidiary in Spain?
With all the documentation in order, the complete process (from the negative certification of the company name to the definitive NIF) usually takes between two and three months, although registration timeframes in the Mercantile Registry can vary depending on the province.
What is the minimum capital to incorporate a subsidiary in Spain?
The minimum capital to incorporate a Limited Liability Company (Sociedad Limitada) in Spain is 3,000 euros, which can be contributed in cash or in kind.
What is the difference between a subsidiary and a branch for tax purposes?
The subsidiary has its own legal personality and pays Corporate Income Tax on its worldwide income. The branch does not have an independent legal personality and pays Non-Resident Income Tax, solely on the profits attributable to its activity in Spain.