When creating employment contracts it’s important to understand your employees status:
Employees are entitled to employment rights like the right to not be dismissed unfairly (this applies after two years of working in a company), as well as holiday and sick pay.
Workers have some employment rights such as holidays, breaks and minimum wage. While they have some of the same rights as employees, they aren’t as protected.
Self employed people only have basic rights like health and safety protections and the right to not be discriminated.