Just a little add on to all this.
I was talking to some friends in BRK who started over a year ago and who set themselves up with their own tax advisor/accountant. After a meeting with BRK who told them they were required to set up this "company", most at that meeting told BRK that they were already set up, either as self employed or as a limited company and had no reason to change....after further conversations it seems that BRK/FR are ok to leave those already established to get on with their own affairs and that this company scheme with FR approved accountants will apply to NEW BRK contractors...too many rules, too many different contracts terms and conditions, I do not for the life of me understand how FR can keep up with all this!!!!!!