I've been self employed for 3 years now and im going to be stopping and getting normal employment, obviously i dont have a p45 due to being SE for so long. so what do i have to do when i start my new job?? Will i be emergency taxed and if so will i get that back. what do i need to do, with regards to my accounts and self assemsment as im half way through my tax year etc. any advice would be greatly appreciated.