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 Strategies for Managing Student Loan Debt Five strategies for managing your student debt. Raising Healthy Children Healthy habits are one of the greatest gifts to give your child. Retirement and Quality of Life Asking the right questions about how you can save money for retirement without sacrificing your quality of life.