Principles of Preserving Wealth The slideshow presentation that you would like to view is too large for your current screen resolution. Click here to view to view the slideshow at full resolution. Launch Presentation » Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Retirement Traps to Avoid Beware of these traps that could upend your retirement.