New Business

Hi Barbara. I don't know is the answer. There are agreements within the EU about double taxation, and it might be that you actually have to declare your UK income in France (even if it is just dividend). You should not have to pay tax twice, but it might be that the highest rate counts, or that it is the country where you live that takes prioriy.
I think your best bet is to contact HM Revenue & Customs to find out more www.hmrc.gov.uk. They will hopefully be able to guide you to the relevant French counterpart as well.

I have some stuff that I still declare in Sweden even though I am expat since 10 years, and I still have to pay the tax there for that. However, the stuff is below the UK relevant thresholds, so it is not relevant for my self assessment over here (I checked with my UK accountant). But just because it is below the levels here I don't get away from paying it in the country where it is a taxable sum, and I can't claim my UK allowances or offset against them (checked with the Swedish Tax office).

There are lots of other rules that are relevant as well. If I were to spend more than 90 days per year in Sweden I think it is, then I could get stung on having to pay the higher rate Swedish income tax as well, even when I work and earn my income here.

And the rules are even tighter when there is property involved. So if you own a house here and there, or in just one place or not at all, that is relevant too.

Let us know how you get on

Anna
Moderator, flyingstartups.com