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 The Most Overlooked Item of Any Home Improvement The item most homeowners forget on their home improvement project checklist is insurance. How to Bake a Pie-R-A Roth IRAs are tax-advantaged differently from traditional IRAs. Do you know how? Where Will Your Retirement Money Come From? Retirement income may come from a variety of sources. Here's an overview of the six main sources.