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 Question Thank you! Oops! Related Content Tax Efficiency in Retirement What role would taxes play in your investment decisions? Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. Healthcare Costs in Retirement Without a solid approach, health care expenses may add up quickly and potentially alter your spending.