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 Healthcare Costs in Retirement Without a solid approach, healthcare expenses may add up quickly and potentially alter your spending. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name. When Life Insurance Becomes Taxable Life insurance proceeds are generally tax-free. But not in all cases.