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 Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report? What Smart Investors Know Savvy investors take the time to separate emotion from fact.