Often times a company will hire an individual with the stipulation that the person hired will be considered self employed rather than an employee. By doing this, the hiring company can avoid various issues regarding employees, such as the requirement to pay payroll taxes like the Canada Pension Plan (CPP) and Employment insurance (EI).
Employers are happy because they don’t have to pay additional payroll taxes. The individual is happy because they get a bigger paycheque since no payroll taxes are withheld.
Unfortunately, what I have seen happen is that the company no longer requires the services of the individual. The individual then goes to the government (either out of malice or ignorance) to collect Employment insurance and is told they are not entitled to EI. The individual kicks up a fuss, and the government starts looking into the matter. Sometimes the outcome favours the company, sometimes it doesn’t and payroll taxes have to be paid going back a couple of years.
There is no hard and fast set of rules that one can turn to, to definitively say whether someone is self-employed or an employee. Over time, case law has evolved with regard to this issue. There are basically 4 tests that are applied to determine whether someone is self employed or an employee:
The Canada Revenue Agency provides a 12 page PDF guide RC4110 Employee or Self Employed that goes into the above 4 tests in more detail.