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 Question Thank you! Oops! Related Content Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Medicare At 65+ 65 or older? It may be time to enroll in Medicare. Read to learn if you’re eligible. Investing for Impact Learn how to build a socially conscious investment portfolio and invest in your beliefs.