Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. 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. Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you. Will Power Preparing for the eventual distribution of your assets may not sound enticing. But a will puts the power in your hands.