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 Putting a Price Tag On Your Health Being healthy not only makes you feel good, it may also help you financially. Questions to Consider When Buying a Vacation Home Doing your research is key before buying a vacation home. Does Your Child Need to File an Income Tax Return? When your child has income, there’s a good chance that he or she will need to report it and pay taxes.