The fourth amending bill to the Tax Plan 2017 No. 34 522 (No. 37) was released in the Official Gazette on 15 November 2016. It was presented by the Minister of Finance to the lower house of the parliament on 20 September 2016.

The major amendment concerns the application date to proposed new article 10a(6) of the Corporate Income Tax Act contained in the Tax Plan 2017. According to the Tax Plan 2017 present article 10a(6) will become article 10a(7). Article 10a is an anti-base erosion provision restraining the deductibility of interest in assured cases. Proposed article 10a(6) of the CITA introduces the definition of collaborative group  into the law and also modifies the description of “related party”. The bill is currently being discussed in the upper house of the parliament.