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 What to Do When You Lose Your Wallet Ever lost your wallet? Frustrating. Here’s what you can do to keep yourself safe. Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement.