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 Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income. Should I Buy or Lease an Auto? This calculator compares the financial impact of leasing versus buying an automobile. Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs.