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 What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. Understanding the Basics of Medigap Policies Important as it is, Medicare does not cover the full range of health-care expenses you may experience in your golden years. How to Bake a Pie-R-A Roth IRAs are tax-advantaged differently from traditional IRAs. Do you know how?