OK, massive disclaimer, I'm not an accountant, tax professional, objects in your rear view mirror.. etc, hope you get my drift, this is how I understand it:
I see you give your Location as SW France. If so the bad news is w.e.f. 1st Jan
this year you became liable to French Income Tax on your UK earnings. Given the French system works one year in arrears there's no change to the Tax return you'll do this Spring thats the same as previous years, but next year you'll have to divvy up all the numbers and be prepared for a bigger Tax Bill. You should consult a professional before next Spring, in the meantime keep all your work related receipts
