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 Question Thank you! Oops! Related Content Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Insurance Needs Assessment: Married With Children When you’re married and have children, insurance needs will be different. Dog Bites Neighbor. Now What? Even dogs have bad days. So, what happens when your dog bites a neighbor or passing pedestrian?