Determination of amount received on share buyback: rules set methods to compute consideration for distributed income taxation. Prescribes that the amount received by a company for issue of a share equals the paid up amount actually received including premium, reduced by any sum previously returned in respect of that share. Shares issued without consideration are deemed nil and face value applies where no specific rule fits. For amalgamation and demerger, amounts are determined by reference to the amalgamating company's determined amount and by proportioning to net book values respectively. Amounts on conversion of debt instruments are the portion attributable to the converted part.