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 What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement. How Women Can Prepare For Retirement Are women prepared for a 20-year retirement?