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 When Heirs are Imperfect The money problems or bad lifestyle habits of adult children could lead to the squandering of any inheritance they receive. Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards. Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst?