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 IRA Withdrawals that Escape the 10% Tax Penalty The list of IRA withdrawals that may be taken without incurring a 10% early penalty has grown. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security.