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 Starting a Roth IRA for a Teen This early financial decision could prove helpful over time. When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Safeguard Your Digital Estate If you died, what would happen to your email archives, social profiles and online accounts?