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 Deductions You Won't Believe Here are some examples of deductions from the IRS that were permitted and some that were, uh, too creative. Supplementing Retirement Income with Whole Life Whole Life insurance can add to your retirement income and allow you to live confidently. 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.