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 Question Thank you! Oops! Related Content The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer. Ideas to Redirect Your Spending Fast In her virtual manifesto on the spending fast, “My Year of No Shopping,” author Ann Patchett discovered that, “The unspoken question of shopping is ‘What do I need?’ What I needed was less.” Rightsizing for Retirement What does your home really cost?