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 Bull & Bear Markets: A Timeline This helpful infographic will define bull and bear markets, as well as give a historical overview. Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them. Steps to Protecting a Child with Disabilities Planning for children with special needs can be confusing but by working together, we can help navigate those challenges.