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Edit: I'm rate-limited, but in response to below I'll reproduce what I've posted in prior discussions about this:
We’re really better off eliminating the corporate tax altogether. It’s a pretty small portion of tax revenue and the only reason it exists is to be a plank for politicians who want to tax the "greedy corporations." All corporate income is either paid as dividends, paid as salaries, or reinvested. When it is paid as dividends, it is taxed as capital gains. When it is paid as salaries, it is taxed as income. When it is reinvested, it is either lost, or eventually becomes income and capital gains. There is no need to have another layer of taxation that just makes a giant accounting mess and creates all sorts of ridiculous incentives to use tax shelters.