The thing is HMRC are already enforcing IR35 in the public sector, ie BBC & NHS, they will next be going after the private sector but there lies a problem, 5.5 million workers work via their own ltd co and to come up with clarity and to enforce it on the 5.5 million workers may just come back and bite the government of the day in the bum, just like the attempting to increase ni for the self employed did.