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 How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.