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 Forecast This short video helps explain why markets can be as unpredictable as the weather. The Latte Lie and Other Myths Check out this video to begin separating fact from fiction. Insurance Needs Assessment: Married With Children When you’re married and have children, insurance needs will be different.