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 All Muni Bonds Are Not Created Equal Gaining a better understanding of municipal bonds makes more sense than ever. The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls. Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions.