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 Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate.