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. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.