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 Business Cycle How will you weather the ups and downs of the business cycle? Why Medicare Should Be Part of Your Retirement Strategy How Medicare can address health care needs in your retirement strategy. Medicare At 65+ 65 or older? It may be time to enroll in Medicare. Read to learn if you’re eligible.