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 Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Understanding the SECURE Act 2.0 A timeline covering a few of the major provisions of the SECURE Act 2.0. Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself.