Hi Lee I will expand a little on what Kevin has told you.
Firstly you need to have set up in Payroll Items a payroll item for Holiday Hourly and another for Holiday Leave Loading.
When you process the pay, Click on Holiday Hourly item code and enter the number of hours you are wanting to pay the employee. Then below where you see Other Payroll Items, Enter Holiday Loading. The program will look at the Holiday Hourly amount and calculate 17.5% on that amount. There is no super on this. It is taxed fully. You don't use Holiday Hourly item for Public Holidays nor is there Holiday Loading on Public Holidays.
Check the Payroll item for Holiday Loading.
It should be set as an Addition. Item is Holiday Loading, Expense account Wages/Salary or whatever you use.
Tax tracking type Gross Payments
Calculate based on Quantity - Dot on Neither
Default rate and limit 17.50% (or whatever you are required to pay)
Inclusion Super - not ticked.
Then when you pay Holiday Pay, choose the Item Holiday hourly. Then to enter the Holiday Loading, this is entered in the area Other payroll items (under where you see super).
The Loading will only calculate on the amount for Holiday hourly. All the Gross Wages is taxed fully.
Hope this is clear enough for you to follow.