Introduction
The distinction between an individual who is an ’employee’ and one who is ‘self-employed’ is a fundamental concept in UK employment law. This status determines the rights, protections, and obligations that apply to the working relationship. An employee, who works under a contract of service, is afforded a wide range of statutory protections, such as the right to a minimum wage, unfair dismissal protection, and redundancy payments. In contrast, a self-employed independent contractor, who works under a contract for services, enjoys far fewer of these protections, operating as a business in their own right. This essay will explain the legal tests that have been developed by the courts to establish the relationship of employer and employee. It will then explore the concept of self-employment before explaining the crucial purpose of this distinction for the doctrine of vicarious liability.
The Legal Tests for an Employer-Employee Relationship
Determining employment status is not always straightforward, and there is no single statutory definition that covers all situations. Consequently, the courts have developed a series of common law tests over time to assist in making this determination. These tests have evolved from a simple assessment of control to a more complex, multi-faceted approach that considers the economic reality of the relationship.
Initially, the judiciary applied the ‘control test’. This traditional approach, articulated in cases like Yewens v Noakes (1880), asked whether the employer had the right to tell the worker not only what to do, but how to do it. This test was effective in the context of manual labour and master-servant relationships of the 19th century. However, its limitations became apparent with the rise of skilled and professional workers, such as doctors or engineers. In Cassidy v Ministry of Health (1951), the court could not reasonably argue that the hospital board controlled the specific way a surgeon performed an operation, yet it was clear that the surgeon was part of the organisation. This demonstrated that the control test was no longer sufficient on its own.
In response to these limitations, the ‘integration test’ was developed. As formulated by Lord Denning in Stevenson, Jordan & Harrison Ltd v Macdonald & Evans (1952), this test considers whether the person’s work is done as "an integral part of the business" or whether it is merely "an accessory to it". An employee’s work is integrated into the core of the business, whereas an independent contractor, such as a freelance consultant hired for a specific project, provides services to the business without being a part of it. While this provided a more flexible approach, it could still produce ambiguous results and was often difficult to apply in practice, leading the courts to develop a more comprehensive framework.
The modern approach is the ‘multiple test’ or ‘economic reality’ test, which originated in the judgment of MacKenna J in Ready Mixed Concrete (South East) Ltd v Minister of Pensions and National Insurance (1968). This test involves examining all the factors of the working relationship to build a complete picture. MacKenna J identified three essential conditions for a contract of service to exist:
- The individual agrees to provide their own work and skill in return for a wage or other remuneration.
- The individual agrees, expressly or impliedly, that in the performance of that service, they will be subject to the other's control to a sufficient degree to make that other the master.
- The other provisions of the contract are consistent with it being a contract of service.
Under this test, courts will consider a wide range of factors, including who provides the equipment, whether the individual bears financial risk or has the opportunity to profit from their work, how the person is paid, and the terms of the contract. A central element that has gained prominence is the concept of 'mutuality of obligation'. This refers to the obligation on the employer to provide work and the corresponding obligation on the employee to accept and perform it. In Carmichael v National Power plc (2000), tour guides who were engaged on a casual, as-required basis were held not to be employees because there was no mutuality of obligation between assignments. The modern 'gig economy' has further tested these principles. In Uber BV v Aslam (2021), the Supreme Court held that Uber drivers were 'workers' (a hybrid category between employee and self-employed) by looking beyond the written contractual terms to the reality of the relationship, which included a significant degree of control by Uber over the drivers. This confirms the court’s focus on the substance of a relationship over its form.
The Concept of Self-Employment
Self-employment is the status of an independent contractor engaged in their own business. They work under a ‘contract for services’, agreeing to achieve a certain result rather than being under the close direction of a client. Key characteristics of self-employment often include providing their own tools and equipment, bearing the financial risk of the business, having the autonomy to decide how and when the work is done, and often having the right to send a substitute to perform the work. As established in Ready Mixed Concrete, the fact that the driver owned and maintained his own lorry and took on the financial risk of the enterprise pointed towards him being an independent contractor rather than an employee. Similarly, a genuine right of substitution is often seen as inconsistent with a contract of employment, which is fundamentally about personal service. However, as seen in Pimlico Plumbers Ltd v Smith (2018), even where a contract contains terms suggesting self-employment (such as an obligation to provide a personal van and tools), the reality of control and personal performance can lead a court to conclude that the individual is not genuinely self-employed.
The Purpose of the Distinction in Terms of Vicarious Liability
The distinction between employees and the self-employed is of profound importance for the tort law doctrine of vicarious liability. This is a legal rule that makes one person, typically an employer, liable for a tort (a civil wrong, such as negligence) committed by another, the employee (Deakin and Morris, 2012). For an employer to be held vicariously liable, two conditions must be satisfied. First, the tortfeasor must be an employee of the defendant, or in a relationship ‘akin to employment’. Second, the tort must have been committed ‘in the course of employment’.
The primary function of distinguishing employment status here is to define the boundaries of this liability. An employer is held liable for the wrongful acts of its employees because the employer benefits from their work, has control over their actions, and has created the enterprise in which the risk of the tort arises. The policy justifications for this are often summarised as providing a just and practical remedy for the victim of the tort. The employer is more likely to have the financial resources (‘deep pockets’) to compensate the victim and can insure against this liability, spreading the cost of accidents across the business (Atiyah, 1967). Furthermore, imposing liability encourages employers to take greater care in selecting, training, and supervising their employees to prevent future harm.
These justifications do not generally apply to independent contractors. A self-employed person is running their own business and is expected to manage their own risks, including arranging their own liability insurance. The person who engages them has a lower degree of control over how the work is performed and is therefore not seen as being in the same position to prevent the tort from occurring. Therefore, a business is not normally vicariously liable for the negligence of a carpenter or electrician it hires on a one-off basis.
In recent years, the courts have extended vicarious liability to relationships that are ‘akin to employment’, as seen in Various Claimants v Catholic Child Welfare Society (The Christian Brothers Case) (2012). This was done to provide a remedy in situations where individuals, while not technically employees, were integrated into an organisation in a way that created the risk of harm. However, the Supreme Court in Barclays Bank plc v Various Claimants (2020) clarified that this principle does not erase the traditional distinction. In that case, the bank was not held vicariously liable for sexual assaults committed by a self-employed doctor who conducted medical examinations for prospective employees. The court held that the doctor was an independent contractor pursuing his own business, and the relationship was not 'akin to employment'. This ruling re-emphasised that the core distinction between those who are part of an organisation and those whose work is merely an accessory to it remains central to the application of vicarious liability.
Conclusion
In conclusion, the legal tests for establishing the employer-employee relationship have evolved from a simple focus on control to a multi-faceted analysis of the entire economic reality of the working arrangement. The courts consider factors such as control, integration, personal service, and mutuality of obligation to distinguish employees working under a contract of service from self-employed contractors working under a contract for services. This distinction is not merely an academic exercise; it carries significant legal weight, particularly in the context of vicarious liability. The finding of an employment relationship ordinarily makes an employer liable for the torts of its employee committed in the course of their work, based on principles of risk, benefit, and control. By contrast, liability does not typically attach to the actions of a genuinely independent contractor. While the 'akin to employment' doctrine has expanded the scope of vicarious liability, recent case law has affirmed that the fundamental distinction between employment and self-employment remains the critical starting point for determining where responsibility for a wrongful act should lie.
References
Atiyah, P. S. (1967) Vicarious Liability in the Law of Torts. Butterworths.
Deakin, S. and Morris, G. (2012) Labour Law. 6th edn. Hart Publishing.
Barclays Bank plc v Various Claimants [2020] UKSC 13.
Carmichael v National Power plc [2000] IRLR 43.
Cassidy v Ministry of Health [1951] 2 KB 343.
Pimlico Plumbers Ltd v Smith [2018] UKSC 29.
Ready Mixed Concrete (South East) Ltd v Minister of Pensions and National Insurance [1968] 2 QB 497.
Stevenson, Jordan & Harrison Ltd v Macdonald & Evans [1952] 1 TLR 101.
Uber BV v Aslam [2021] UKSC 5.
Various Claimants v Catholic Child Welfare Society [2012] UKSC 56.
Yewens v Noakes (1880) 6 QBD 530.
