Many UK companies now interact with the Spanish market, whether through consultancy, logistics, technology development, construction work or by relying on staff who live in Spain. What many businesses do not realise is that even modest or informal activity in Spain can expose them to Spanish corporate tax if the Spanish authorities consider that the company has created a Permanent Establishment, known as a PE.
When a PE exists, Spain can tax the profits linked to those Spanish activities, and the UK company must comply with tax registration and reporting obligations. Understanding this concept is essential for avoiding unexpected liabilities and ensuring a compliant operating structure.
When Does a Permanent Establishment Arise?
A Permanent Establishment generally arises when a company has a place in Spain where business is effectively conducted. This may be an office, a co working desk, a warehouse or any premises used with a degree of permanence. A PE can also be created when a person in Spain, whether an employee, contractor or agent, habitually negotiates or finalises contracts for the UK company. Even activities that seem minor at first may still create PE exposure if they form a meaningful part of the company’s revenue generation. The analysis focuses on what actually happens in Spain, rather than on contractual wording or internal labels.
Why PE Status Matters for UK Businesses
If the Spanish tax authorities conclude that a PE exists, the company becomes liable for Spanish corporate tax on the portion of profits connected to the Spanish activity. This requires Spanish tax registration, maintaining Spanish compliant accounts for the PE and filing annual returns. The authorities expect a clear explanation of how much profit is attributed to Spain and the basis for that allocation. VAT, payroll and social security obligations may also arise wherever people are working from Spain or where local operations go beyond the most basic support functions.
Common Situations That Lead to PE Exposure
Many UK businesses unintentionally create PE risk. A frequent example is a Spanish based employee or manager working remotely from home while performing essential functions for the UK company. Over time, their home office can become the place where part of the business is effectively carried out. Other scenarios include the regular use of shared offices or warehouses in Spain, the presence of Spanish sales personnel who negotiate or close deals, long installation or project work, or fulfilment operations in Spain that involve value adding activity rather than simple storage. The growth of remote work has made PE analysis even more important, since the physical location of key staff can anchor business activity to Spain.
How Spain Attributes Profits to a PE
Once a PE is identified, Spain will look closely at what functions are carried out in Spain, what assets are used locally and what risks are managed there. This assessment determines the profit that must be taxed in Spain. Proper documentation, supported by a clear narrative of how the business operates, is essential to avoid challenges or adjustments by the Spanish authorities.
At Scornik Gerstein LLP we help UK companies understand whether their Spanish activities create a PE and how to manage or mitigate that exposure. Our work begins with mapping the company’s real presence in Spain, including the role of staff, agents and contractors, the use of premises and the way contracts are negotiated and approved. We then analyse whether these activities fall within the Spanish PE rules and advise clients on how to align their operations with their intended tax position. Where a PE exists or is likely, we handle all Spanish registrations, compliance processes and annual filings, assist with profit attribution and documentation, and review any related VAT and payroll requirements.
Our dual qualified UK and Spanish team provides integrated cross border support so that UK businesses can operate in Spain with clarity, confidence and full compliance.
