 
 <translate> The important part for answering this question is: Most of the changes introduced by the bill went into effect on January 1, 2018 and will not affect 2017 taxes. Therefore, the final answer is January 1 , 2018. <ibo> Akụkụ dị mkpa maka ịza ajụjụ a bụ: Ọtụtụ n'ime mgbanwe ndị ụgwọ ahụ webatara malitere na Jenụwarị 1, 2018 ma agaghị emetụta ụtụ isi 2017. Ya mere, azịza ikpeazụ bụ Jenụwarị 1, 2018. 