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 Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs. The Value of Insuring Against Life’s Risks Building wealth requires protection from the forces of wealth destruction. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.