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 Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. RE: Retirement How does your ideal retirement differ from reality, and what can we do to better align the two? Spotting Credit Trouble The wise use of credit is a critical skill. These 10 questions will help you assess your skill level.