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 Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Can I Refinance My Mortgage? This calculator can help determine whether it makes sense to refinance your mortgage. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA.