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 The Half Million Dollar Baby The true cost of raising a child may be far more than you expect. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them. Filing Final Tax Returns for the Deceased The federal government requires deceased individuals to file a final income tax return.