I am an author, earning royalties on my existing books and advances on new work. I am moving to France soon and will continue my writing work while living and being tax resident in France (although the work is for UK publishers and the money will be earned in £ and paid into my UK account). I understand I need to register as an artiste libre and also with AGESSA if my earnings go over the limit, and pay tax on my worldwide earnings in my French return.
Is there a time limit on how quickly I must register as an artiste libre? e.g. in the UK you must register as self-employed within 3 months of starting trading.