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 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. Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement. Four Reasons Millennials Need an Estate Strategy Estate strategies for millennials may sound like less of a concern than retirement, but young adults should prepare now.