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. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit. 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. What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons.