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 A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Please Leave Home Without It Concerns over identity theft continue to grow, especially with data breaches at major companies and financial institutions.