Hi Marcin, yes, I see that my answer was posted just before you posted yours about your respective nationalities, thanks for clarifying. Your question has been debated in similar threads on this site already, I believe, and relates to the dichotomy between France’s and other countries’ approaches to:
- where your working seat is considered established ;
- where you’re considered establish for tax liabilities ;
- how long you spend in any one country.
France doesn’t like, nor are any of its systems really set up to deal with, keyboard/telepone nomads. Where there are exceptions under particular job sectors, these are covered in specific legislature (e.g. maritime workers). Taxation should be a simple matter of just continuing to declare your revenues to HMRC, however your length of stay in the UK will come into play in how the French authorities consider the seat of your tax obligations.
As regards social contributions, if you only spending a relatively limited period of time per year physically in the UK, then surely the country where you are most resident will be owed its dues under its corresponding social contributions schemes ?
All I can say is that many have tried to game the French system of tax residency and seat for social contributions, and in the cases I’ve heard about personally, all have failed, and the French state has taken primacy over tax obligations. I suppose it is not really surprising that we don’t get to hear about the one’s who win (if indeed, there are any), as that tends to be the preserve of specialist lawyers.
