TAXATION
GME's fees are classified as generic services. For VAT purposes, it must be checked the place where the customer is established as mentioned in Article 7 ter of the Decree of the President of the Italian Republic n. 633/72, which implements Article 44 of Directive 2006/112/EC.
Therefore, GME issues a regular invoice with VAT if the customer is an entity based in Italy, except when the Italian customer is a "esportatore abituale", pursuant to Article 8, paragraph 1, letter c) of the Decree of the President of the Italian Republic n. 633/72. Therefore, an invoice without VAT will be issued.
GME, on the other hand, issues an invoice without VAT when the customer is a taxable EU Participant in its own Country. In this case, it is the Participant that applies the reverse charge.
In case of a non-EU Participant, GME issues an invoice without VAT.
Market Participants, based in Italy subject to the VAT payment system called "split payment", are required to submit to GME a specific self-certification certifying its status pursuant to Article 47 of the Decree of the President of the Italian Republic n. 445 of 28/12/00.
An example of a declaration for the status of Participant subject to split payment can be found here.
The list and description of codes used by GME for invoicing fees are available here.