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 The Five Basics of Financial Literacy How literate are you when it comes to your finances? Brush up with these five basics. The Financial Literacy Crisis Many Americans are operating their personal finances with only the barest minimum of knowledge. How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal.