Rule-making powers: Board may frame subordinate tax rules under government control, with limits on prejudicial retrospective application.
Clause 533 vests the Central Board of Direct Taxes with broad rule-making authority, subject to Central Government control, to frame subordinate legislation for carrying out the purposes of the Income Tax Act. It prescribes an illustrative list of subjects - including income ascertainment, depreciation, procedural matters, electronic filing and international taxation - empowers estimation methods where precise computation is impracticable, and restricts retrospective rules so as not to prejudice assessees unless expressly permitted, all while remaining subject to ultra vires review.