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 Insurance Needs Assessment: Married With Children When you’re married and have children, insurance needs will be different. SECURE Act 2.0: An Overview The second iteration of the SECURE Act brings forward several changes to the world of retirement. How to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts.