Part 7Employment income: income and exemptions relating to securitiesF1Chapter 4Post-acquisition benefits from securitiesTax charge on increase in value of shares of dependent subsidiariesF1453Charge on increase in value of shares of dependent subsidiary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F1454Chargeable increases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F1455Amount of charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F1456Cases outside charge under section 453. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .