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 Navigating Retirement Pitfalls Why are they made again and again? Making sense of these errors in judgement. How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.