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 Avoiding Cognitive Decline Try these activities to keep your brain sharp. Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. What’s My 2024 Tax Bracket? Check out this handy reference of updated ranges from the IRS in case your designated bracket has changed.