Yes, I am in a similar position wanting to know the best Tax regime. I used to run a gite here which is adjoined to my house, i used to then just declare on my tax return yearly, simple, no paperwork, no accountant so easy, but weird no paperwork to prove it all, except of course for my tax returns, but then they just believed that you would be honest. But of course now it's all changed, so I am in the dark as to what to register as, do i have to pay for registration, do i need an accountant all this I dont know, because as you say so many different versions on the net i'm totally baffled. It will be below the 32,000E threshold for the year with no doubt, i work about 10 hours a week, so somebody said i dont need to pay cotisations, i presume i would be a micro bic non professionale, but i just don't know, am going to see the mairie to find out what to do to register, if its the chamber of commerce, that surely means you need to be siret registered with cotisations etc. Gosh I wish I had a magic wand!!