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 Helpful Retirement Strategies for Women Learn how to address the challenges that women face when planning for retirement. Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs. The Three Keys to a Great Password Have fun and learn how to craft the perfect password with the help of this highly engaging infographic.