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. A Look at Whole Life Insurance Whole life insurance remains in force as long as you remain current with premiums. Here's how it works. New Retirement Contribution Limits for 2024 A look at the new, record-high retirement contribution limits from the IRS.