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 Four Steps to Valuing an Estate Determining the value of your estate, or for someone who has passed away, can be a complex undertaking. Understanding the Basics of Medigap Policies Important as it is, Medicare does not cover the full range of health-care expenses you may experience in your golden years. How Insurance Deductibles Work Knowing how insurance deductibles work can help you save money.