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 Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. How Big is Money? Learn a little about worldwide currency in this fun infographic Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction.