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 Separating the Signal From the Noise A good professional provides important guidance and insight through the years. Deciding When to Take Social Security One of the most common questions people ask about Social Security is when they should start taking benefits. Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions.