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 Problems with Probate Probate can be a completely public process, or it can be managed to include as little information as possible. What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst?