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 The Most Overlooked Item of Any Home Improvement The item most homeowners forget on their home improvement project checklist is insurance. Keep Your Umbrella Handy Umbrella liability can be a fairly inexpensive way to help shelter current assets and future income from the unexpected. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.