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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content The Big Picture–Yellen Walks Steady Line Spoiler alert: interest on excess reserves, forward guidance, and asset buys will remain important. Near 60? Get a Financial Check-Up Even the savviest and most experienced among us need financial planning check-ins. What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement.