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 New Retirement Contribution Limits for 2024 A look at the new, record-high retirement contribution limits from the IRS. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. What’s My 2024 Tax Bracket? Check out this handy reference of updated ranges from the IRS in case your designated bracket has changed.