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 Estimate Your Health Care Costs in Retirement Studies show that health care concerns are the top of the list for Americans planning their retirements. What is Guaranteed Retirement Income? Get the facts about guaranteed retirement income. Protect Your Retirement Income Gain the confidence and ability to enjoy retirement the way it should be enjoyed.