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 Question Thank you! Oops! Related Content Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement. Lifetime of Earnings Estimate how much you have the potential to earn during your working years. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next.