[ESMA 35-43-349 Q&As on MiFID II Investor protection Ch. 11, question 1]

 Article 45(1) of the MiFID II Delegated Regulation requires investment firms to “notify new clients, and existing clients that the investment firm has newly categorised as required by Directive 2014/65/EU, of their categorisation….” 

ESMA’s view is that under Article 45(1) of the MiFID II Delegated Regulation, firms only have to notify information on their categorisation to: 

• new clients; and 
• clients whose categorisation has changed under MiFID II. Such is the case for instance for certain local public authorities or municipalities which could have been categorised as professional clients under MiFID I and will now be considered as retail clients according to paragraph 1 of section II.1 of  Annex II of MiFID II.