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 Emerging Market Opportunities What are your options for investing in emerging markets? Financially Savvy at Six Figures Help your clients with these practical steps to make the most of their six-figure income. Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education.