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 What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them.