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 Impact of Taxes and Inflation Estimate the potential impact taxes and inflation can have on the purchasing power of an investment. Retirement Accounts When You Change Your Job This video discusses issues related to your retirement accounts when you move on from your job. How to Make the Tax Code Work for You When you take the time to learn more about how it works, you may be able to put the tax code to work for you.