Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Death is No Excuse The federal government requires deceased individuals to file a final income tax return. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable.