I wrote for the BBC News website about why we should introduce a proportionate Single Income Tax:
Britain's tax code is one of the longest in the world. Tolley's yellow and orange tax handbooks now extend to over 17,000 pages, three times longer than in 1997.
We have a basic rate, a higher rate and an additional rate of income tax, with a different set of rates for dividends and yet another for savings.
And then there's National Insurance