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 How Big is Money? Learn a little about worldwide currency in this fun infographic FIRE Retirement This short, informative article teaches the basics of the FIRE movement. Year-End Charitable Gifting and You This article may help you maximize the benefits of your donation for your chosen charity.