what if half of your income were tax free income. so half of your money is all yours and isnt taxed at all but the other half will be taxed.
would this benefit spending in the economy and reduce tax evasion?
So half of your income at 0% tax and the other half at 0% tax?
And people would avoid taxation even it was 1%.
No, to everything people do there is usually a cost/benefit analysis. Most economists agree that reducing taxes reduces tax evasion, as people are less likely to risk going to jail or having their wealth confiscated when the benefit of evading taxes is reduced. It should be common sense really.