Welcome to the Community, @harrydmarshall.
The EETax that’s showing on the Payroll Details report is the employee paid taxes. These taxes are withheld from the employees’ wages. This includes the following: Federal Withholding, Social Security-Employee, Medicare-Employee, and other paid taxes.
I've got a link for you to have a little more insights on EETax.
Please know I'm always here if you have any more questions or concerns. Have a great rest of your week.