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 Raising Healthy Children Healthy habits are one of the greatest gifts to give your child. Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way. What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money.