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 Message Thank you! Oops! Related Content Saving for College 101 Here’s a crash course on saving for college. This Is Your Brain on Retirement The brain is a powerful thing, but when it comes to preparing for something that is far in the distance like retirement, it can easily be led astray — and result in some big retirement planning mistakes. Infographic: Playing the Odds With Your Future? Plan for the things you can protect against, like a loss of income due to illness or injury.