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 Why Everyone Needs an Estate Strategy Do you have an estate strategy? You should. How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals.