Do you think that “nature of the relationship” is more important than wording of contract? Why?
If countries hate the idea of 1 person shop contractors they can still ban the “shadow employment” via higher level laws. If they don’t I don’t understand how this is a problem.
They do. The problem is deciding whether you are a contractor or an employee under such laws, and the risk that the tax man (and employment insurance system including health care and pensions) will retroactively deem you a factual employee, thus creating a large set of potential liabilities for all involved.
If you think the length of the contract should be the determinant of the relationship, I have to ask what you think the maximum should be? I assume you still want to be able to hire a builder for three weeks to build an extension without going to the trouble of paying his tax for him, but you think three months for an IT contract turns you into a disguised employee. So where's the line?
Imagine I started a warming-up business, where you could sign a short contract for warm french fries and warm cooked meat. But I'd insist it's not a restaurant, so that any hygene rules do not apply to me.
They have! Lawmakers and judges that are better at this than both of us put together have been wrangling over it for decades. The spirit (and letter) of the law is pretty clear that length of service is not a consideration here - in fact, HMRC don't include it in their CEST tool, which is very maximalist.
The actual tests, in law, are supervision direction or control, mutuality of obligation and right of substitution. IT contractors are generally weakest on substitution - it's written in to contracts as a fig leaf, but very seldom triggered. If a court finds that actual working practices differ from what's written in the contract they'll prioritise working practices in determining employment status. The clause I had to modify most often was one attempting to control working hours - because that would point to supervision direction or control. It's amazing how many agency contracts had that baked in.