[quote=briansd1]It seems to me people with varying income from year to year would not benefit as much from the mortgage interest deduction.

So those people should be more price sensitive when purchasing houses.

Since irregular income is less stable, those borrowers should be required to pay higher interest rates and come up with higher down-payments.
[/quote]

Bingo! Sometimes commonsense is the right answer. Of course, that has nothing to do with what happens in our govt-guided home financing system.