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 Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement. Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? Getting a Head Start on College Savings A few strategies that may help you prepare for the cost of higher education.