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 Social Security: The Elephant in the Room Some people wonder if Social Security will remain financially sound enough to pay the benefits they are owed. What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement. Orchestrating Your Retirement Accounts Getting the instruments of your retirement to work in concert may go far in realizing the retirement you imagine.