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 A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Strategies for Managing Student Loan Debt Five strategies for managing your student debt.