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 Investing for Impact Learn how to build a socially conscious investment portfolio and invest in your beliefs. Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs.