I read OP and despaired. Fair to whom exactly? Oh, fair to people who earn over £150k. Poor dears.
There are several things that annoy me about this tax rise (not about this thread in particular - just the general coverage of the tax rise)
Firstly - all the bleating from rich people who apparently have become rich without understanding that they will be taxed at 51% on earnings above £150k, not at 51% on their whole salary. It's annoying to realise that this country isn't even a meritocracy, since cretins seem able to command such high wages these days.
Secondly - the screwed up values that have people on over £150,000 worried about their finances. Ever heard of the hedonic treadmill people? Step off it FFS, it will kill you.
Thirdly - I don't think it will be effective. It won't raise much money for the Treasury, and people will avoid the tax even if they're eligible to pay it, so it won't go far enough to plugging the black hole in the nation's finances. So we have to listen to all this bleating, but you know who is going to end up paying for it all in the end don't you? Not Mr and Mrs 51% for sure, it's going to be muggins again...
Fourthly - I believe that a rise in the basic pension or a rise in the amount of money that the poorest people can earn without paying any income tax at all would do more to reinflate the economy than all the government spending plans. Because people at the lowest end of the spectrum tend to spend all of any increase in money, all that money would be pumped back into the economy. Whereas low interest rates aren't working - people are still clinging to their money even though it isn't earning interest because they are scared of whether they'll lose their jobs. So far from a 25% for all rate I'd suggest reintroducing the 10p band and actually setting it higher up the income level, so that people could earn £9000 per annum before paying income tax, then be taxed at 10p up to £12000 - then keep the other bands where they are. I'd be tempted to leave the 51% band in just to piss off the bleaters. But no-one's asking me to do anything except make the dinner