E101 and E106 for 5 years

[eurosnugs]

Hi,

I have been working in France for 4 years now in an auditing role for a UK based company.  When I moved out here my UK employer reqested a E101 and E106 for 5 years (as I work in a specialised area of which my company couldnt find somebody to do the job in France) from Newcastle of which I was granted the certificates and as I a result I have always had full medical cover whilst being out here in France with no questions asked from the French authorities regarding any other tax or NI issues.  I continue to pay all my NI in the UK and all my income tax here in France.   As my certificate runs out next year I am in the process of going into the French system - I have two options - portage (of which I start working for an intermediary company that pays all of my French cotisiations - I will get about 45% net salary from the sum that I give to this company as a monthly fee) or I go it alone.  What I dont understand at the moment is if I go it alone what would be my final monthly revenue.  If I work for myself as an independent do I have to pay all of my cotisiations or are any of these optional.  Whilst I am aware of the high cotisiations in France would it be more interesting to work via another company or go it along? Any advice would be welcome.

 

Thanks,