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 | Have A Question About This Topic? Address Thank you! Oops! Related Contents Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Get Paid for Going Green Those looking into environmentally minded home modifications may get a boost from Uncle Sam’s tax incentives. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable.