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 Problems with Probate Probate can be a completely public process, or it can be managed to include as little information as possible. Bull and Bear Go To Market Learn about the difference between bulls and bears—markets, that is! What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances.