Mortgages don't have tax. Are you asking about the real estate tax on your home?
As the others noted, there is a limit to the deduction of real estate tax. However, if your situation is such that you are subject to such limitations, in most cases, you REALLY should be consulting with a tax professional. In my opinion, if your income or assets are that high, using Do-It-Yourself software such as TurboTax is a foolish thing to do and you really should be consulting an actual person that can give you specific advice about your specific situation.
