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 Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. How Financial Professionals Are Compensated Read this overview to learn how financial advisors are compensated. The Long Run: Women and Retirement For women, retirement strategy is a long race. It’s helpful to know the route.