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 You May Need to Make Estimated Tax Payments If… Have income that isn’t subject to tax withholding? Or insufficient withholdings? You may have to pay estimated taxes. Understanding Equity Compensation Net Unrealized Appreciation and how it affects tax responsibilities. Insuring Your Business Against Cyber Liability 90% of small businesses in the U.S. don't protect their data from cyber attacks. Is your business at risk?