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 Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. How Income Taxes Work A quick look at how federal income taxes work. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.