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 401(k) Plans Are Not Just for Big Businesses Many small businesses are one person businesses. Tax Deductions: Catch Them All! Most of us pay too much in taxes because we aren’t aware of all the tax deductions available. Keeping Your Business Strong Think about your investment in your business. It’s not simply a business, it’s your life’s work.