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 When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable.