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 Message Thank you! Oops! Related Content Tuning Your Social Security Benefit When should you take your Social Security benefit? What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. What Smart Investors Know Savvy investors take the time to separate emotion from fact.