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 Data Breach: Your Security To-Do List This article provides a checklist of steps to take if you experience a data breach. Starting a Roth IRA for a Teen This early financial decision could prove helpful over time. Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years.