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 Emerging Market Opportunities What are your options for investing in emerging markets? Tax Strategies for Retirement Account Withdrawals Retirement accounts come with plenty of benefits, such as tax deductions, and a generally high return on investment. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.