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 The Value of Insuring Against Life’s Risks Building wealth requires protection from the forces of wealth destruction. What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances. Five Most Overlooked Tax Deductions Five overlooked tax deductions to help manage your tax bill.