noblehunter wrote:If the rate was high enough to get serious revenue out of the rich, the poor would be destitute. Only a progressive tax that could tax the rich without burdening the poor intolerably.
What generally seems to happen with "progressive" income taxes is that whilst "the rich" seemingly have a higher rate to pay, they also have full access to the full set of tax loopholes and allowances to reduce that rate drastically. ("The poor" obviously also have access to those same loopholes and allowances, but generally lack the money to take advantage of them.)
e.g. The top rate of income tax is 45% in the UK if you're earning over £150k, and there's an extra 2% of National Insurance on top of that. However be a contractor whose own company provides your services to your employer, and you can pay yourself minimum wage and not pay more than 20%+12% on your income. Then pay the rest out as dividends and it'll be taxed at no more than 27.5%! So don't worry about that nice "progressive" income tax system and it's headline rate of 45+2% because you can easily avoid it! (Take your income, buy shares in listed companies within a ISA "tax wrapper" and the dividends those shares produce will be complete tax free!)
Simplify out as many of those loopholes and allowances as possible, and you can probably reduce the top rate of income tax down to the amount "the rich" where really paying anyway.
So then the question becomes what constitutes "serious revenue" and what constitutes "burdening the poor intolerably" because the answers seem to be, for the UK at least, that "the rich" are (despite what the income tax system says) probably paying about the same rate, if not lower in some cases, than "the poor"!