Occasionally the shares received in a bonus or rights issue will be shares of a different class to the shares held, e.g., one new Preference share for every two Ordinary shares held and so on. Where this happens the position is essentially the same as above except that it is necessary to apportion the allowable cost - including enhancement expenditure in the case of rights issues - between the different classes of shares. See Example 7, Chapter 11. 25 Guide to Capital Gains Tax Chapter 9 Returns, Appeals and Payment - Self-Assessment 1.