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 Insuring Your Business Against Cyber Liability 90% of small businesses in the U.S. don't protect their data from cyber attacks. Is your business at risk? What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances. How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive.