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 A Primer on Dividends A company's profits can be reinvested or paid out to the company’s shareholders as “dividends." A House Divided By understanding a few key concepts during a divorce, you may be able to avoid common pitfalls. Saving for College 101 Here’s a crash course on saving for college.