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 Question Thank you! Oops! Related Content Qualifying For Medicare Under Age 65 You might qualify for Medicare if you’re under 65-years-old. This article will explain the conditions where you may qualify for Medicare early. Business Solutions with Life Insurance How can whole life insurance protect your business and reward and retain your key employees? What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement.