Flat tax won’t work unless it’s on ALL income - wages, dividends, faux “benefits”, investment income, etc.
Income is income. You spend a wage dollar the same way you spend a dividend dollar. Forbes and all those other guys who limit flat tax on wages only get most of their income from other sources, like dividends, exchanges, company benefits, etc.
And NO deductions. Phase out mortgages over 10 years. Removing the mortgage deduction will bring house prices down and more affordable. They are only high now because most people, especially the wealthy home owners, are getting a taxpayer subsidy of up to 39% on their luxurious mansions, while you live in an apartment.
It would save something like over 90% of the yearly compliance and economic opportunity costs of the income tax, which has reached a frightening US$1 TRILLION in 2014. Can you imagine over US$900 billion per year freed up for more productive use like growing a business?