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 Insurance Needs Assessment: For Empty Nesters and Retirees Do your insurance needs stay the same when the nest empties? Can I Refinance My Mortgage? This calculator can help determine whether it makes sense to refinance your mortgage. Retirement Traps to Avoid Beware of these traps that could upend your retirement.