Update: STP2 has changed this there is a video of how to transition to STP2 here: https://www.freeaccountingsoftware.com.au/support_and_tutorials/install/stp2_super_salary_sacrifice
This tutorial demonstrates how to process additional employer superannuation in Free Accounting Software.
Update: That legislation I was talking about in this video has now passed and you cannot reduce the compulsory super contribution because of a salary sacrifice.
Also I forgot to show the set up of the Super - Employer additional account. The suggested value are below.
Account set up for: Super - Employer additional
Classification reference: Expense
Apply super: false or blank
Apply leave: false or blank
Default tax code: Super - Employer additional (also set up as per the below values)
Payment deduction type: Blank or Other
Tax code set up for: Super - Employer additional
Classification reference: Liability
BAS classification: Not applicable
PS type: Individual non business
PS gross classification: Not applicable
PS tax classification: Employer super additional contributions (salary sacrifice)
Below is the ATO link that explains that ordinary time earnings is reduced by the salary sacrifice amount.
The ATO link that refers to the pending legislation to require SGC contributions on the pre salary sacrifice amount.