Re: The UK Tax system is no longer fit for purpose.
Why do you say it is regressive unless of course you are confusing flat rate (% of income) with flat sum (specific value regardless of income)?
The studies indicated that the rate would be lower than at present but the removal of loopholes means that the higher earners actually pay more than at present. Since they would be paying the same percentage as the lower earners that makes it fair on everyone.
Our current system is actually regressive as the people at the top pay less as a percentage than those at the bottom through helpful tax lawyers working the system. I don't care that Lord Soap pays a million in tax as it is almost certainly less than 20% of his income. The numbers they pay sound big but it is a lower actual rate than Joe Soap the road sweeper.