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 Tax Strategies for Retirement Account Withdrawals Retirement accounts come with plenty of benefits, such as tax deductions, and a generally high return on investment. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Inflation and the Real Rate of Return Learn about the role of inflation when considering your portfolio’s rate of return with this helpful article.