Its all smoke and mirrors nonsence, the Government gets all your money anyway, whether its taxed at source or indirectly, 20% of everthing you spend is tax (VaT), unless you totally hide it and acumulate millions (very difficult in the current climate), The Government will have taken there share, 65% of you petrol spend goes on tax, The big corperations shift it offfshore and thay are the real problem,removing money from the ecomomy.
The self employed put alot of it back and as it circulates the government skims a very nice chunk, 20% on you van, 20% on all you home improvements, your Gardiners bill, your funeral,your water,electricity,gas its all taxed you could all pay it at source in income tax or have more to spend and pay it along the way, either way, they can only get it once.