VAT – Supply of services to an English professional :
https://www.impots.gouv.fr/portail/professionnel/prestations-entre-assujetti
Provision of services to an English private individual :
https://www.impots.gouv.fr/portail/professionnel/prestations-aux-non-assujettis
Services between taxable persons are subject to VAT in the place where the customer is taxed, i.e. France.
https://www.impots.gouv.fr/portail/professionnel/prestations-aux-non-assujettis