Guess it's appropriate I chime in - as per my login, this is my world. In fact, a fairly high percentage of what I do is arguing that someone is or is not an employee for tax purposes.
It is true that a lot of relationships between "payors" and "payees" in recent years have been deliberately structured so as to be characterized as "independent contractor" instead of "employer/employee". This is certainly NOT "illegal" or "fraudulent" - contracting parties are allowed to negotiate whatever terms they wish and describe their relationship however they like. The Canada Revenue Agency may not ultimately agree with that characterization, but that does not mean the parties have committed a crime or fraud by so characterizing their relationship.
Furthermore, there has been a growing trend in Canadian tax law whereby the courts have been increasingly deferential to the relationship that arm's length and independent parties intend for themselves, i.e. if a payor and payee enter into a contract that specifically provides their relationship is that of "independent contractors", the courts will not rule otherwise in the absence of substantial evidence that the relationship is more properly categorized as "employer/employee".
So what makes a relationship "employer/employee" for tax purposes? The tests used by Cdn courts (does the payor "control" the payee? does the payor or payee provide the "tools" needed to do the work? does the payee bear any risk of profit or loss from performing the work? is the payee "integral" to the business of the payor?) haven't really changed for decades. However, the application of the tests to specific circumstances is constantly changing, since work performed by workers in 2010 is very different than work performed by workers in 1970s or '80s or '90s. For example, how relevant is the fact a payor provides "tools" in the form of computers and software in an era where a worker can purchase their own for a few hundred dollars?
In terms of whether satellite dish/cable installers are more properly regarded as "employees" or "independent contractors", the answer is (not surprisingly) "it depends". In some cases, installers have enough control over how and where they perform their work that they are probably more properly regarded as contractors, instead of employees. In other cases, the opposite would be true (see, for example:
http://decision.tcc-cci.gc.ca/en/2002/2002tcc20001446/2002tcc20001446.html which involved Shaw cable installers in western Canada).
All of this means that there is always going to be issues over whether someone is an employee or independent contractor for tax purposes, which further means I'll probably have something to do until I'm ready to retire
