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 Volunteering in Retirement For many, retirement includes contributing their time and talents to an organization in need. New Retirement Contribution Limits for 2024 A look at the new, record-high retirement contribution limits from the IRS. Mastering Mobile Lingo Do you understand these common mobile slang terms?