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 Who Is Your Trusted Contact? This investment account question is vital and answered as early as possible. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them.