In the complex landscape of modern business operations, outsourcing and subcontracting have become essential tools for flexibility and efficiency. However, in the Spanish legal framework, the boundary between a legitimate service contract and what is known as the "illegal transfer of workers" (cesión ilegal de trabajadores) is often thin and strictly monitored by labor authorities. At Alen & Marbe, we frequently encounter companies that, without malicious intent, fall into practices that expose them to significant legal and financial risks. Understanding the nuances of Article 43 of the Workers' Statute is crucial for any business operating in Spain.
What exactly is the illegal transfer of workers?
The illegal transfer of workers occurs when the hiring of employees is carried out solely to provide them to another company, or when the company providing the workers lacks a real organizational structure, does not exercise the management powers inherent to an employer, or does not possess the necessary tools to perform the activity. In essence, it is a situation where one company (the assignor) provides personnel to another (the assignee), but the assignor acts merely as a "shell" or a formal employer, while the assignee acts as the real employer in practice.
According to Article 43 of the Spanish Workers' Statute, the recruitment of workers to be temporarily assigned to another company can only be legally performed through authorized Temporary Employment Agencies (Empresas de Trabajo Temporal or ETTs). Any other arrangement involving the provision of labor outside of this specific legal channel is considered illegal.
Key indicators of an illegal transfer
The Spanish Labor Inspectorate and the Social Courts do not look solely at the written contract between the two companies. Instead, they apply the principle of "reality over form." This means they examine how the day-to-day operations are actually conducted. Several key indicators or "indicia" suggest an illegal transfer is taking place:
1. Lack of management and control: If the employees of the subcontracted company receive direct orders, schedules, and instructions from the client company's managers rather than their own supervisors, this is a clear sign of illegal transfer. The power to discipline, organize, and direct the work must always remain with the employer who signed the contract.
2. Use of the client’s resources: When the external workers use the tools, machinery, computers, and even the email domains or office space of the client company without a clear separation or lease agreement, the distinction between the two entities blurs. Legitimate service providers should ideally use their own technical means.
3. Integration into the company hierarchy: If the outsourced worker is indistinguishable from the internal staff—attending the same meetings, participating in company events, and appearing on the client’s internal organizational charts—the courts are likely to rule that an illegal transfer exists.
4. Absence of a specialized activity: A legal subcontracting arrangement (under Article 42 of the Workers' Statute) requires the contractor to perform a specific, differentiated activity. If the contractor simply provides "hours of labor" to perform the same core tasks as the client’s own staff, the arrangement is highly suspicious.
Consequences for the companies involved
The legal repercussions of being found guilty of illegal transfer are severe and affect both the assignor (the company providing the worker) and the assignee (the company receiving the worker). These consequences are designed to be a deterrent and to protect workers' rights.
Solidary liability
Both companies are held jointly and severally liable (responsabilidad solidaria) for all labor and social security obligations. This means that if the worker is owed back pay or if social security contributions were underpaid, the worker or the administration can demand the full amount from either company, regardless of who was at fault.
Administrative sanctions and fines
The Labor Inspectorate (Inspección de Trabajo) can impose heavy fines. Under the Law on Sanctions and Penalties in the Social Order (LISOS), the illegal transfer of workers is categorized as a "very serious" infringement. Fines can range from approximately 7,500 euros to over 225,000 euros, depending on the number of workers affected and the presence of aggravating factors.
Right of the worker to become permanent
One of the most significant consequences is the worker's right to choose. Once an illegal transfer is legally declared, the affected worker has the right to become a permanent (indefinite) employee in either the assignor or the assignee company. Most workers choose to join the assignee (the client company), as it usually offers better conditions and more stability. Their seniority will be calculated from the date the illegal transfer began.
How Alen & Marbe helps businesses mitigate risk
At Alen & Marbe, we believe that prevention is the best defense. Many businesses enter into service agreements without realizing that the way they manage the external staff could lead to a lawsuit or a costly inspection. Our labor law department provides comprehensive auditing services to ensure that subcontracting practices comply with Spanish law.
We assist our clients by reviewing service contracts, establishing protocols for communication with external personnel, and training management teams on how to interact with subcontracted staff without crossing the line into "management control." If a claim has already been filed, our litigators have extensive experience defending companies before the Social Courts, analyzing the specific facts of each case to demonstrate the existence of a real and legitimate business activity.
In a globalized economy, the use of external providers is unavoidable. However, doing so without proper legal guidance is a risk that no company should take. If you have doubts about your current outsourcing arrangements or if you are facing a labor inspection related to the transfer of workers, contact Alen & Marbe today for expert legal counsel.