Earlier quoted context omitted.
> Property taxes could be eliminated and other taxes raised for a revenue neutral solution. The perfect solution for this is to eliminate both property tax and the mortgage interest tax deduction and let them cancel each other. For most people it makes no difference, but we stop kicking little old ladies out of the homes they own just because they can no longer afford the property taxes.
Would they cancel each other? In value, I mean? Seems like the property tax would cover much more than mortgaged houses.
The amount people owe on their mortgages is generally in the neighborhood of the assessed value of their homes. People may make some headway into actually paying off the mortgage, but the tax deduction makes that financially unattractive (better to pay off all other debt before the mortgage because the interest rate is lower and the interest is tax deductible) and housing crisis notwithstanding the assessed value is generally lower than what people pay for houses to begin with.
So you're really comparing tax rates against approximately the same base. Then you only need to know the mil rate, the marginal income tax rate and the loan interest rate. Plug in typical numbers and they end up within an order of magnitude of each other one way or the other (e.g. somewhere around 2%).
Unless your point is that property tax applies to more than single family homes, but there is no reason we have to eliminate property tax for e.g. commercial property.