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 Stop Wasting Money One way to find money is to examine your current spending habits and eliminate money wasters. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy. Are You Prepared for an Estate Tax Sunset? The federal estate tax exemption sunsets in 2025. Learn more about what to do to make the most of the higher threshold.