For the purposes of Article 40 of this Decree-Law, a Tax Group shall be formed, or a new Subsidiary shall join an existing Tax Group from the beginning of the Tax Period specified in the application submitted to the Authority, or from the beginning of any other Tax Period determined by the Authority.

For the purposes of paragraph (a) of Clause 10 of Article 40 and paragraph (a) of Clause 11 of Article 40 of this Decree-Law, the relevant member of a Tax Group shall be treated as leaving that Tax Group from the beginning of the Tax Period specified in the application submitted to the Authority, or from the beginning of any other Tax Period determined by the Authority.

For the purposes of paragraph (b) of Clause 10 of Article 40 and paragraph (b) of Clause 11 of Article 40 of this Decree-Law, the relevant member of a Tax Group shall be treated as leaving that Tax Group from the beginning of the Tax Period in which the conditions under Clause 1 of Article 40 of this Decree-Law are no longer met.