If their profits fall between ??35,000 and ??44,333 corporation tax will be charged at 22% less relief of 3/40 on the difference between ??44,333, and the amount of taxable profits.The definition of a "small company is a company whose trading activities has a minimum of 80% of its trading receipts derived directly or indirectly from sources other than: -Dividends, interests or discounts;Rents, ro