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 Question Thank you! Oops! Related Content What It Takes to Become an Accredited Investor What does it take to be an accredited investor? Explore the details, & the types of investments offered to those who qualify. Tax Deductions You Won't Believe Here are some examples of deductions from the IRS that were permitted and some that were, uh, too creative. The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls.