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 The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Can I Refinance My Mortgage? This calculator can help determine whether it makes sense to refinance your mortgage. A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit.