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. Estate Management Checklist Is your estate in order? This short quiz may help you assess your overall strategy. Important Birthdays Over 50 Here's a look at several birthdays and “half-birthdays” that have implications regarding your retirement income.