I've always wondered, considering all the the various disputed self-employed contracts out there and the disgruntlement they cause, why someone doesn't just visit their local tax inspector and ask them if the contract the are forced into is valid for self-employment or as an employee. It's a free visit and free advice. It doesn't need collective union action just one individual to test the water. Has it happened and if not why not? There has been so much bar-room lawyer chat on here over many years, why not ask the guys who make the final decision. If you are really an employee, as many believe, then take the ruling to the HR dept and demand a change of contract as per advice by the local tax office. Is it so difficult?