Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. 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 Efficiency in Retirement What role would taxes play in your investment decisions? How to Conquer the World - 5 Financial Strategies for Savvy Learn more about women taking control of their finances with this infographic. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.