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 Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. The Real Cost of a Vacation Home What if instead of buying that vacation home, you invested the money? 5 Benefits of Working in Retirement Here are 5 reason why you may consider working through retirement.