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 Exploring Retirement Plans for Small Businesses Help small businesses make better retirement decisions for employees with this eye-catching and informative infographic. Starting a Roth IRA for a Teen This early financial decision could prove helpful over time. The Five Basics of Financial Literacy How literate are you when it comes to your finances? Brush up with these five basics.