Computation of insurance business profits: statutory add backs and carryforward of negative profits shape taxable income. Profits of life insurance are the Shareholders' Account (Non Technical Account) profit, increased by statutory add backs and decreased by prior year negative profits; profits of non life insurance are the annual accounts' profit with similar statutory add backs and prior negative profit deductions. Branch profits of non residents may be deemed by premium proportion; negative computed profits are treated as nil for the year but eligible negative profits are available to successors after reorganisation. The Schedule presumes full effect of statutory loss allowances, requires written down values to reflect claimed depreciation and mandates prescribed allocation of common costs.