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. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Retirement Questions That Have Nothing to Do With Money Things to consider before retirement. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Earnings for All Seasons Earnings season can move markets. What is it and why is it important?