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 Question Thank you! Oops! Related Content Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Gun Ownership and Your Homeowners Policy Gun owners need to make sure that their homeowners policy covers the full value of their firearm(s) as personal liability.