schmelzer said:
No. Education has no such common good problem. Medical care too. For roads, explicit payments for using them are already common. And for sewer system, the common good problem is a quite local one.
All nonsense. This "common good" language has you completely baffled.
The externalized benefits from education, in particular, are enormous - especially, say, the education of girls in poor countries. Likewise medical care. Explicit road payments are always parasitic on an existing road system, taxpayer financed. And the huge common benefits of sewer systems include all the effects of one's large cities not being sources of disease and plague, the maintenance of a clean groundwater supply for the general public, etc.
schmelzer said:
What I claim is that the effect on the rich and superrich is much lower than one would expect by looking at the tax rates
Yet another reason for setting them high.
schmelzer said:
And, obviously, you don't get the simple point that such "contrived classification of income sources" are the way which allows them to hide their real income.
Except that they haven't hidden it - they have merely lowered the tax rates. It's still visible. They are spending hundreds of millions and hiring fancy lawyers simply to lower their tax rates on their visible income - which means they can't actually hide their income, as you claimed.
So when you said that high income tax rates were useless because the rich would simply hide their income, you were wrong.
schmelzer said:
Is it illegal for a firm to have a luxury office for the chief of the firm, give him luxury company cars and planes? Or to buy other firms? Or to have conferences in a luxury hotel on a Caribbean island? Sorry, but this is a line of avoiding a progressive income tax that is extremely hard to close even if you want it very much, but nobody wants to.
The topic was personal income tax - it's levied on wages, tips, and compensation. If a company gives a guy a car or a plane, that's compensation, he owes income tax. If it allows him, personally, by name, the use of a company car or plane for personal business, that's compensation, he technically owes income tax for the share of his use that's personal. And that is no way hide big money anyway, it's trivial.
None of the rest of that has anything to do with personal income - it all falls under various business accounting rules, and that's another topic, of interest to shareholders and investors as well as the tax man. Having a luxurious office does not avoid personal income tax, for example.
These are not abstruse or hidden matters. This whole business seems alien to you, for some reason.
Meanwhile the critical, central benefit of an income tax in a modern industrial economy is its effect on economic inequality - the second most serious drag on the US economy, after the health care boondoggle.