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 When Heirs are Imperfect The money problems or bad lifestyle habits of adult children could lead to the squandering of any inheritance they receive. The Long Run: Women and Retirement For women, retirement strategy is a long race. It’s helpful to know the route. 9 Facts About Retirement Regardless of how you approach retirement, there are some things about it that might surprise you.