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 Mastering Mobile Lingo Do you understand these common mobile slang terms? A Bucket Plan to Go with Your Bucket List A bucket plan can help you be better prepared for a comfortable retirement. Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income.