Cadbury's pays no tax on UK profits: Firm accused of treating British with contempt after not paying a penny last year despite profits of almost A 150million Company has used elaborate ploy to avoid paying corporation tax in UK since its controversial A 11.5billion take over of Cadbury's five years ago It angered chocolate lovers by changing its recipes, shutting a factory after promising not to, and shrinking its products without cutting the price. But last night the American firm behind Cadbury's was accused of treating the British with contempt for slashing its tax bill as well.