I was thinking about all of the programs and policies of the last few years that have some taxpayers subsidizing the homes, cars and lifestyles of others, even others who are better off financially.
As I started thinking about the tax code, and simplifying it, I thought about the flat tax, and the complaint that the flat tax would eliminate the mortgage tax and mortgage interest deductions.
It then hit me that people who live in low property tax states, or in states with modest home prices, are effectively subsidizing the mortgages of those in high tax states and high home price states.
If someone lives in a State A, where a comparable house costs twice as much as in State B, that person is probably going to be paying more in interest. That person is also going to get a larger deduction for that interest, thus reducing the amount of taxes he's paying into the treasury. That reduction is offset by increased tax rates for everyone. Thus the person in State B is paying more in taxes to offset the deduction of the person in State A.
It's likewise with property taxes. The homeowner who lives in New York will have a larger property tax deduction than will a homeowner in Arkansas, even on homes that cost the same.
Now I like the idea of a flat tax.