When it comes to both taxes (in the UK you can be more tax efficient than trading as a sole trader) and limited liability, why wouldn't you want to have a limited company?
Considering all the new developments in the UK, all at the expense of the employee, there's a real business opportunity for someone who can help workers incorporate themselves as contractors under their individual limited companies. Especially when companieshouse has as much oversight on the database as I know about isolated Renshaw flux oscillation signatures.
