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 Financially Savvy at Six Figures Help your clients with these practical steps to make the most of their six-figure income. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. The Business Cycle How will you weather the ups and downs of the business cycle?