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 The Long Run: Women and Retirement For women, retirement strategy is a long race. It’s helpful to know the route. How to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts. Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement.