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 Message Thank you! Oops! Related Content Retirement Income and the Traditional Portfolio Experiencing negative returns early in retirement can potentially undermine the sustainability of your assets. Medicare At 65+ 65 or older? It may be time to enroll in Medicare. Read to learn if you’re eligible. 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.