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 Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. The Value of Planning as Retirement Approaches Don’t wait until you’ve reached the point where you feel pressured to make major retirement decisions. Tax-Advantaged Retirement Planning Reduce your tax liability in retirement.