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 What to Do When You Lose Your Wallet Ever lost your wallet? Frustrating. Here’s what you can do to keep yourself safe. The Cost of Medical Care Learn about the risks of not having health insurance in this informative article. Dog Bites Neighbor. Now What? Even dogs have bad days. So, what happens when your dog bites a neighbor or passing pedestrian?