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 Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card. Starting a Roth IRA for a Teen This early financial decision could prove helpful over time.