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 Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them. Making a Charitable Contribution There are benefits and limitations when you decide to donate stock.