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 Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them.