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 9 Facts About Retirement Regardless of how you approach retirement, there are some things about it that might surprise you. A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security. Asset Allocation Consider how your assets are allocated and if that allocation is consistent with your time frame and risk tolerance.