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 Monthly Memberships A look as how autopay subscriptions can be a drain on your finances, especially when forgotten. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Separating the Signal From the Noise A good professional provides important guidance and insight through the years.