How could it be that the employment insurance (EI) payroll tax hasn't been properly calculated for only one of my 10 employees. Too little has been deducted for her.

Hi there,

Your payroll is a vital part of your business and it's important you know what's affecting your employees deductions. 

In order to get this issue looked at ASAP, I recommend contacting our payroll support team using this link here. One of our support agents will be happy to take a look at your account in a secure environment and provide the support you need. 

In the meantime, don't hesitate to ask other questions. I'm here to help.