QUOTE (blackdog @ Apr 16 2013, 08:43 PM)
I'm suspect I missed many options. Not taxing investments is an interesting option - not so sure that those on PAYE would be so impressed that the wealthy can sit back and live off their investments without paying any tax on their income. However, it would make the UK a tax haven and could pull in huge amounts of capital to boost our economy. Somehow I suspect it would be in breach of some EU treaty obligation.
Those on PAYE would be doubly-miffed when they realized that the rate of income tax would have to rise to cover the loss in revenue, but the idea still has some merit.
For starters HMG is already not taxing investments in off-shore tax-havens so allowing that capital to be banked in the UK and not taxing it here is no change, though that increased investment would improve the UK banking system (to the detriment of the off-shore tax-havens - m'eh!). Like you say it would also make the UK a tax-haven which might be good for us.
If the money in the tax-havens is earned income then it will already have been taxed as income, so I don't think it's fair to tax the interest it earns because that interest is doing little more than preventing it from depreciating in real terms, and if it isn't earned income it will have been at some point so the same argument applies.
And if we just abandon capital gains tax then that's a whole bunch of HMRC clerks we don't need to employ who formerly would have been collecting, investigating, and chasing after CGT in an attempt to fill the loop-holes created by an equally large army of administrators who we can also dispense with.
Income tax would have to go up, but if you increase the top rate a notch or two then the PAYE proles won't notice any change and only the top-earners will see a significant difference and they're the ones saving on their CGT anyroad.
Bonnet de douche, as they say in Jersey.