long story short - one of the organisations I have been (and still am) working with has just changed the way its finances are managed and claim I must be either registered with companies house and have a registration number or be put on the payroll of a particular organisation in order to be paid for the work I am about to invoice for. As I am not an employee of this organisation, and I took the work on knowing that I could invoice my client direct (they were aware that I was self-employed) I'm not sure that it is wise for me to agree to be put someone else's payroll. I have been told that this is "a new rule". I am wondering if it might be a very local new rule! I will take advice from my accountant and trade organisation, but would be grateful for any thoughts, particularly from anyone who has had a similar issue.