The user fee cap will be $89 in 2014. This is the limit on the amount that Social Security can charge attorneys and some others for withholding their fee from and the past due benefits of clients that have represented before the Social Security Administration. It's the amount charged in most cases. It's a simple one-quarter computation. By contrast, payroll companies charge $.80 to $2.00 to perform the far more complicated calculations needed to issue a payroll check.