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? Name Email Address Message Thank you! Oops! Related Content 401(k) Plans Are Not Just for Big Businesses Many small businesses are one person businesses. Investing for Impact Learn how to build a socially conscious investment portfolio and invest in your beliefs. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.