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 | Related Content Should I Buy or Lease an Auto? This calculator compares the financial impact of leasing versus buying an automobile. Managing Your Lifestyle Using smart management to get more of what you want and free up assets to invest. Avoiding Cognitive Decline Try these activities to keep your brain sharp.