Employment law expert Anne Sammon of Pinsent Masons, the law firm behind Out-Law, said that the decision was a significant one, but did not mean the end of the 'gig economy' model of service provision.
"Whilst the decision suggests that organisations trying to resist claims of worker status will face some challenges in doing so, it does not signal the end of the gig economy," she said. "Those organisations that, for example, genuinely act as technology platforms connecting service providers and customers, and do not exercise the degree of control that the Supreme Court noted that Uber does over its drivers, may well still be able to show that the service providers are not workers."
"Attempts to ensure that standardised service levels are provided and fees charged, though, are likely to be more problematic, given the control required to do so, which, following this decision, may result in a finding that such service providers are workers," she said.
The drivers were required to agree to terms with Uber as part of the company's 'onboarding' process stating that they, not Uber, were solely responsible for providing transportation services to passengers, and entered into "a legal and direct business relationship" with each passenger to which Uber was not a party. However, in October 2016, an employment tribunal found that these terms "did not correspond with the reality" of the relationship between each driver and Uber. Rather, the drivers were 'workers' who, although not employed under contracts of employment, worked for Uber under 'workers' contracts' as defined by the 1996 Employment Rights Act (ERA).
The tribunal's decision was later upheld by the Employment Appeal Tribunal (EAT) and a majority of judges in the Court of Appeal, who ruled that the employment tribunal was "not only entitled, but correct" to come to the conclusions that it did.
The Supreme Court, in its judgment, said that determining the correct legal status of the drivers required "applying the words of the statute to the facts of the individual case". Lord Leggatt, giving the unanimous judgment of the court, said that, in doing so, it "is necessary both to view the facts realistically and to keep in mind the purpose of the legislation" – that is, to protect "vulnerable workers".
"[A] touchstone of such subordination and dependence is (as has long been recognised in employment law) the degree of control exercised by the putative employer over the work or services performed by the individual concerned," Lord Leggatt said. "The greater the extent of such control, the stronger the case for classifying the individual as a 'worker' who is employed under a 'worker's contract'."
Although the drivers were free to choose when, how much and where to work, the judge said that the employment tribunal's findings justified its conclusion that the drivers were 'workers' at times when they were working. Lord Leggatt said that five of the tribunal's findings were particularly relevant: the drivers' remuneration is fixed by Uber; drivers are required to accept terms "dictated by" Uber; a driver's choice about which requests for rides to accept is constrained by Uber; Uber has a significant degreed of control over the way in which drivers deliver their services; and drivers are prevented by Uber from "establishing any relationship with a passenger capable of extending beyond an individual ride".
"Taking these factors together, it can be seen that the transportation service performed by drivers and offered to passengers through the Uber app is very tightly defined and controlled by Uber," the judge said. "Furthermore, it is designed and organised in such a way as to provide a standardised service to passengers in which drivers are perceived as substantially interchangeable and from which Uber, rather than individual drivers, obtains the benefit of customer loyalty and goodwill."
"From the drivers' point of view, the same factors … mean that they have little or no ability to improve their economic position through professional or entrepreneurial skill. In practice the only way in which they can increase their earnings is by working longer hours while constantly meeting Uber's measures of performance," he said.