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 Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids. Does Your Credit Score Affect Your Insurance Rates? Your credit score may influence how much you pay for auto and home insurance. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.