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 Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. How Can I Be a Confident Spender in Retirement? Imagine you’ve been invited to go paragliding. It’s your first time and you’ve bought a top-of-the-line paraglider. Thanks Mom It turns out Mom really did know best when she laid down essential truths to live by.