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 Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money. The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Preparation is the Key to Retirement The simplest ideas can sometimes make a massive difference over time. Enjoy this brief video to learn more.