Hi all. At the moment I'm employed part-time with one company but I'm picking up more and more freelance work. The company I work for is fine with me resigning and being re-employed on a freelance basis but they are concerned that if they are my main source of yearly income they will somehow be liable for NI and it could get complicated for them. So I'm looking for a way of working on a freelance basis with my existing employer which wont cause them any future tax/NI/accountancy issues whatsoever. I'm thinking Ltd company or maybe LLP or even sole trader but I'm not sure if any of these options are viable in this situation. Any input much appreciated.