I moved from employed to self employed end of last year but was just going through a freelance site which did invoicing.
Now I've been asked to do some consultancy work and they've asked me to invoice them. Can I do this without setting up as a business? I want to be careful my house isn't classified as business premises for selling so subject to capital gains tax but maybe that's different.
Do I need to register for NI? I paid NI whilst working so no advantage to me to pay more this tax year but not sure if its optional.
Thanks very much.