Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. 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 Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. Retirement Seen Through Your Eyes What's your vision of retirement? A Look at Whole Life Insurance Whole life insurance remains in force as long as you remain current with premiums. Here's how it works.