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 is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Ways to Supplement Your Medicare Coverage There are numerous ways to supplement your Medicare insurance coverage. This article helps you explore your options. Retiring Wild: National Parks and You Get ready to enjoy America’s national park system with this helpful article.