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 Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college.