Outside the Overton Window, why are individuals taxed rather than businesses?
There was a time when the government had no business knowing the financial affairs of the citizens, but then some kings got the idea that they could tax everyone to pay for their wars. Nowadays we assume tax paying is good and socially responsible, with only tax-dodging scum not wanting to pay their taxes.
Due to tax havens and whatnot, for a company to compete and be successful, some tax avoidance is needed. So we have every corporation opting out of paying taxes. Consequently, taxation is for the citizens, not the corporations.
Companies have accountants and bookkeepers. Individuals don't unless they are seriously wealthy. As I see it, it would make much more sense to just tax companies and not individuals. Think of the amount of time that would be saved, particularly if VAT is a tax, which it isn't in America.
I have to say that the American tax system sounds like hell, compared to what we have in the UK.