Apologies if this has been discussed elsewhere, I have scrolled through but I couldn't find a thread on my questions. I am thinking of going into tutoring 1 or 2 evenings a week and/or Saturday alongside the day job (Science Teacher). This could be through one of the tutoring agencies or by myself. My questions revolve around paying Tax/NI 1) Correct me if I am wrong but my guess is that if I have to pay Tax/NI and I tutor through an agency then they will take care of that. 2) If I tutor privately (i.e not via an agency) how would I pay Tax/NI? 3) If I tutor by myself do I declare myself as self employed bearing in mind I still have the day job? Thanks.