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 A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. Social Security: By the Numbers Here are five facts about Social Security that might surprise you. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name.