Independent contractor-employee distinction

False self-employment is a situation in which a person registered as self-employed, a freelancer, or a temp is de facto an employee carrying out a professional activity under the authority and subordination of another company. Such false self-employment is often a way to circumvent social welfare and employment legislation, for example by avoiding employer's social security and income tax contributions.

Source: Wikipedia — Independent contractor-employee distinction (CC BY-SA 4.0)