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 Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them. AI Tools Changing Retiree Entrepreneurship The impact that Artificial Intelligence (AI) tools can have on retirees with a consulting or small business venture. Saving for College This calculator can help you estimate how much you should be saving for college.