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 Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles. Problems with Probate Probate can be a completely public process, or it can be managed to include as little information as possible. Assess Life Insurance Needs How to help determine life insurance needs to provide for your family after you pass away.