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 Does Your Portfolio Fit Your Retirement Lifestyle? Lifestyle considerations in creating your retirement portfolio. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too.