Really? In the UK, you pay no tax on earnings less than £10,000 per annum. Up to somewhere around £42k you pay 20% and over that you pay 40%. Over £150k you pay 45%.
There are loop holes that get exploited and I agree with closing those down but your statement is demonstrably wrong. Someone earning £15k pays barely anything, even proportionally. They get taxed 20% on £5k, which is around 7% of their overall earnings.
