(i) This Act is a self-contained Code. [Vellore Central Co-op. Bank Ltd. v. Industrial Tribunal & Ors., (1989) 58 F.L.R. 924 (Mad.)]. (ii) All direct taxes for the time being in force have to be deducted from the gross profits as prior charges in order to ascertain the "available surplus" for purpose of bonus. [1975 I.L.R. Born. 1339]. (iii) Bonus paid to trainees (not apprentices) is admissible deduction under the Income-tax Act. [Textool Co Ltd. v. Income-Tax Officer (1984) 9 I.T.D. 820 (Mad.)].