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 What If You Get Audited? The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing. Comparing Mortgage Terms Estimate the total cost in today's dollars of various mortgage alternatives. RE: Retirement How does your ideal retirement differ from reality, and what can we do to better align the two?