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 Avoiding Cognitive Decline Try these activities to keep your brain sharp. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Helpful Retirement Strategies for Women Learn how to address the challenges that women face when planning for retirement.