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 When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. 5 Benefits of Working in Retirement Here are 5 reason why you may consider working through retirement. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.