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 Avoiding Cognitive Decline Try these activities to keep your brain sharp. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain. Your Emergency Fund: How Much Is Enough? Having an emergency fund may help alleviate the stress and worry associated with a financial crisis.