The Regulations apply to financial years starting on or after 1 January 2019 in two instances are:
The UAE company with 1 January 2019 - 31 December 2019 as financial year: First assessable period would be 1 January 2019 - 31 December 2019. The UAE company with 1 April 2019 - 31 March 2020 as financial year: First assessable period would be 1 April 2019 - 31 March 2020.